EPA-R2-73-173b
February 1973 Environmental Protection Technology
Chemical Desulfurization of Coal:
Report of Bench-Scale Developments
Volume
Office ef Research and Monitoring
U.S. Environmental Protection Agency
Washington. D. C. 20460
-------
EPA-R2-73-173b
Chemical Desulfurization of Coal:
Report of Bench-Scale Developments
Volume 2
by
J. W. Hamersma, E. P. Koutsoukos,
M. L. Kraft, R. A. Meyers,
G. J. Ogle, and L. J. Van Nice
Systems Group of TRW, Inc.
One Space Park
Redondo Beach, California 90278
Contract No. EHSD 71-7
Program Element No. 1A2013
Project 21ADD-96
Project Officer: Lloyd Lorenzi
Control Systems Laboratory
National Environmental Research Center
Research Triangle Park, N. C. 27711
Prepared for
OFFICE OF RESEARCH AND MONITORING
U.S. ENVIRONMENTAL PROTECTION AGENCY
WASHINGTON, D. C. 20460
February 1973
-------
This report has been reviewed by the Environmental Protection Agency
and approved for publication. Approval does not signify that the
contents necessarily reflect the views and policies of the Agency,
nor does mention of trade names or commercial products constitute
endorsement or recommendation for use.
11
-------
TABLE OF CONTENTS
APPENDICES.
Appendix A.
Appendix A-l.
Appendix A-2.
Appendix A-3.
\blume 2
LABORATORY EXPERIMENTATION
Computer Program for Analysis of Ferric
Chloride and Ferric Sulfate Extractions
of Pyritic Sulfur from Coal
Ferric Chloride Experimentation
Ferric Sulfate Experimentation
Appendix A-4. Computer Program for Analysis of
Concurrent Leach and Regeneration
Appendix A-5. In Situ Regeneration of Ferric Sulfate
Leach Solution
Page
1
2
5
18
23
30
Appendix B. BENCH-SCALE EXPERIMENTATION 34
Table B-l. Pyritic Sulfur Removal from Coal with 35
Ferric Chloride - Ferric Ion and Coal
Weathering Effects
Table B-2. Pyritic Sulfur Extractions with Ferric 40
Sulfate - Parametric Investigations
Table B-3. Experimental Conditions for 46
Experiments 42 Through 64
Table B-4. Pyritic Sulfur Extractions with 48
Commercial Ferric Sulfate
Table B-5. Particle Size Effect on Pyritic Sulfur 49
Removal Rates - Continuous Reagent Exchange
Table B-6. Ferric Ion to Total Iron Ratio Effect on 53
Pyritic Sulfur Removal Rate
Table B-7. Temperature Effect at Ambient Pressure on 57
Pyritic Sulfur Removal Rate
Table B-8. Multi-Batch Extraction of Pyritic 61
Sulfur from Coal
Table B-9. Total Iron Concentration Effect on 63
Pyritic Sulfur Removal Rate
Table B-10. Effect of Concurrent Reagent Regeneration 76
on Above Ambient Pressure Pyritic Sulfur
Extraction from Coal
Table B-ll. Sulfate to Sulfur Ratio Computations 80
m
-------
APPENDIX " A "
LABORATORY EXPERIMENTATION
-1-
-------
17270-6011-RO-OO
•
APPENDIX A-l. COMPUTER PROGRAM FOR ANALYSIS OF FERRIC CHLORIDE AND FERRIC
SULFATE EXTRACTIONS OF PYRITIC SULFUR FROM COAL
PROGRAM WARR (0UTPUT,TAPES)
C DIMENSION STATEMENTS F0R PROGRAM VARIABLES
I DIMENSION SF<50>*ASHF<50>,BTUF<50>,FE2F<50>*FE3IN<50>
2 DIMENSION CF(50),CI(50),AMS(SO), AMS04C50)
3 DIMENSION SLeSS(50>,ASHLeSS<50),BTUGAIN<50>,SAHLOSS<50>,ASHR(50>,
1ASHRELC50),BTUFAC<50>,FES2REM<50>,CFTC50>,TOTREC<50>,XKATCLS(50>,
2AMSFC50>,AMSI(50>,AMPL8SS(50>,AMFSC50),SULSUM<50>,SBAL<50>
DIMENSION S04RAT<50>,BTU(50>,BTUREL<50>,BTUCOR<50>,AMFE2<50),FE3US
1EDC50>,SREM(50>,FERATI0<50>
C INPUT VARIABLES-NBN SUBSCRIPTED. ONLY 0NE C0AL PER RUN.
C SI=INITIAL SULFUR,ASHI=INITIAL ASH,BTUI=INITIAL BTU,SP=IN1TIAL PYR
C ITIC SULFUR
10 REWIND 8
ACCEPT <8> I
11 ACCEPT<8> SI,SP,ASHI,BTUI
C INPUT VARIABLES-SUBSCRIPTED
C I=SUBSCRIPT-NUMBER flF RUNS,SF=FINAL SULFUR,ASHF=FINAL ASH,BTUF«FIN
C AL BTU,CI=INITIAL COAL WT.,CF=FINAL C0AL WT.,FE2F-FINAL FE<2)»
C FE3IN=IN1TIAL FEC3). COAL IS DRY WEIGHT. IR0N IS IN MM.
12 ACCEPT (8) CSF(J)>J=1>I),CASHF(J)>J=l,I),(BTUF(J),J=1,I)>
1 CCKJ), J=1,I ), (CF(J),J=1>I )> (FE3IN(J), J=1,I ),(FE2F(J),
2Ja|,I),««J=1*I>
C C0MPUTATI0N 0F SULFUR,ASH AND BTU CHANGE AND ASH BALANCE
20 D0 100 Jsl,I
21 SL8SS(J)=rSI-SF(J)
22 ASHLOSS(J)=ASHI-ASHF(J)
23 BTUGAIN(J) = -*CI(J)*0.01871
31 CFT(J)=CI(J)-FES2REM(J)
C T0TREC=T0TAL ACCOUNTABLE WEIGHT
C MATCL0S»PERCENT MASS ACCOUNTED F0R
32 T0TREC
33 XMATCLS(J>=
-------
40 AMSF/3.2
41 AMSI(J>=(CI(J)*SI)/3.2
42 AMPLeSS>/3.2
44 SULSUMCJ>=AMFS*AMSCJ>»AMS04/100.)
SULSUM«-<<(ETUI-CBTUF/BTUFAC/BTUC>*100.)
C C0MPUTATI0N 0F IR0N BABANCE
60 AMFE2(J)=(AMS04*1.5)
61 FE3USED= ( ( FE2F< J)-
PRINT 202* ASHL0SS(J>*BTUREL*
1FERATI0(J)»S04RAT(J)«SREK(J)
100 C0NTINUE
PRINT 700
700 F0RMAT SULFUR REMeVED*/4X*X*8X*X*9X*X*9X*X*28X*X*>
201 Di 205 J=1,I
PRINT 202* ASHL0SS(J)»BTUREL(J)»SBAL(J)»XMATCLS(J)«FERATI0(J)*S04R
1AT(J)*SREM(J)
202 FBRMAT (F6.1•6F10-2)
205 C0NTINUE
C DATA SUMMARY 0UTPUT
PRINT 700
PRINT 300
300 F0RMAT (16X*IR0N BALANCE*//*FE3*6X*FE2*4X*FE3*4X*FEP*4X*FE2CEXPT>*
1/*INITIAL FINAL USED CALC FE2(CALC)*/2X*MM*6X*MK*6X*X*
2* MM*)
301 D0 305 J=UI
PRINT 302* FE3IN
-------
400 FiRMAT C11X*C9AL MATERIAL BALANCE*//*INITIAL FINAL PYRITE T0
1TAL REC§VERY*/*WEIGHT WEIGHT REMOVED WEIGHT*/3X*G*
28X*G*8X*G*8X*G*8X*I*)
401 00 405 J=1*I
402 PRINT 403, CKJ)»CF*XMATCLS
403 FiRMAT
405 CONTINUE
PRINT 700
SULFUR BALANCE BUTPUT
PRINT 500
500 FiRMAT C25X*SULFUR BALANCE*//X*FINAL PYRITIC TfLUENE SULFATE T
1«TAL SULFUR SULFATE*/X*C6AL*3X*L§SS EXTRACT*11X*RFC£VER
2ED BALANCE SULFUR*/2X*ZS*5X*MM S*5X*MM S*4X *MM SC4*5X*MI*>
3 S*8X*Z*)
501 DC 505 J=1»I
502 PRINT 503* SFCJ>,AMPLOSS(J)»AMS(J)»AMS04(J),SULSUK(J),SBAL»Sfl4
IRAT(J)
503 FiRMAT (F5.2*F8.1»2F9.1»2F10.1*F9.2)
505 CONTINUE
BUTPUT • BTU AND ASH DATA
PRINT 700
PRINT 600
600 FORMAT (11X*ASH DATA*19X*BTU DATA*//*ASH*4X*ASH*4X*ASH*4X*ASH*ASHRfJ),BTUGAIN(J),BTUREL(
IJ>»BTUF>BTUC0R
603 FtRMAT
-------
APPENDIX A-2. FERRIC CHLORIDE EXPERIMENTATION
General Reaction Conditions:
a) 540 mM 0.9M. FeCl3 in 0.3M HC1 per 100 g -100 mesh coal
b) 2.0 hour reaction time
c) Coal filtered, washed, then extracted 1 hour with 300 ml toluene
d) Dried overnight at 150-170°C and cooled under vacuum
Specific Reaction Conditions:
Index (J)
1,2
3,4
5,6
7
8,9
10,11
12,13 (same expts as 3,4)
14,15
16
17,18
Variable Change
-14 mesh coal
2 hours leach time
6 hours leach time
12 hours leach time
O.OM HC1
0.1M HC1
0.3M HC1
1.2M HC1
Dummy value average for Runs 8-15
Reaction value diluted to twice the
volume
NOTE: Index number (J) is the same for each coal.
-5-
-------
LOWER KITTANNING C0AL
INITIAL ASH=20.77%, INITIAL BTU=12140, INITIAL ASH FREE BTU=l5069
INITIAL SULFUR=4.29%, INITIAL PYRITIC SULFUR=3.58%
DATA SUMMARY
ASHCEXPT)
ASH(CALC)
1 .26
1.79
.99
.95
.85
.75
.60
.39
.20
1.08
-.43
.99
.95
. 15
.66
1 .06
.91
1.39
BTU-ASH
FREE
%
100.0
102.0
98.7
98.8
98.2
99.5
100. 5
100.0
98.6
101.2
99.4
98.7
98.8
99.2
98.2
100. 1
100.0
100.8
SULFUR
CL0SURE
%
97.4
0.0
86.8
84.2
95.7
0.0
100.7
111.1
0.0
107.2
0.0
86.8
84.2
1 10.5
0.0
97.2
104.5
107.6
MATERIAL
CL0SURE
%
99.8
100.0
97.2
96.7
100.4
94.4
95.3
99.9
100.9
99.6
99.5
97.2
96.7
98. 1
100.3
99.7
101 .2
99. 1
FE2(EXPT) SULFATE
FE2CCALC) SULFUR
1.05 1.09
1.03 1.12
1.27 1.44
1.28 1*41
1.34 2.03
1.61 .49
1.25
1.19
1.19 '<.
1 .18
1 .Rl
1.27
1.28
1.35
. 4R
.57
>.08
.36
.91
. 44
.41
.08
1.43 2.05
1.22 1.44
1.06 1.28
1 .09 1 .75
SULFUR
REM0VED
%
55.0
50.8
49.2
47.5
60. 1
51 .7
63.4
41 .6
44. 1
46.9
36.3
49.2
47.5
36.0
38.3
42.5
59.5
59.2
J
1
2
3
4
5
6
7
8
9
10
1 1
12
13
14
15
16
17
1R
Run
^9
20
21
22
23
2k
25
26
27
28
29
21
22
30
31
SULFUR BALANCE
FINAL
C0AL
%S
2.32
2.47
2.53
2.59
2. 14
2.44
2.02
2.80
2.71
2.61
2.99
2.53
2.59
3.00
2.92
2.77
2.16
2.17
PYRITIC
L0SS
MM S
59.7
56.9
56.5
54.5
61 .9
52.9
65.0
43.5
47.3
48.8
38.7
56.5
54.5
38.1
39.8
44.4
64.1
63.6
T0LUENE
EXTRACT
MM
27.
26.
16.
15.
18.
33.
27.
22.
15.
24.
13.
16.
15.
25.
13.
16.
30.
26.
S
1
5
9
1
7
7
6
1
3
4
2
9
1
1
0
9
2
7
SULFATE
MM S04
29.
29.
24.
21.
37.
16.
40.
34.
31.
33.
25.
24.
21.
27.
26.
24.
38.
46.
5
8
4
3
9
5
8
7
8
3
2
4
3
2
6
4
8
8
T01AL SULFUR SULFATE
REC0VERED BALANCE SULFUR
MM S
121 .4
o.o
1 14.1
1 10.5
1 13.7
0.0
1 19.2
132. 1
0.0
127.5
0.0
114. 1
1 10.5
132.5
0.0
115.8
129.7
133.0
"L
97.
0.
86.
84.
95.
0.
100.
111.
0.
107.
0.
86.
84.
1 10.
0.
97.
104.
107.
4 1 .09
0 1.12
8 1.44
2 1.41
7 2.03.
0 .49
7 1.48
1 1 .57
0 2.08
2
0
8
2
5
0 i
2
5
6
.36
.91
. 44
.41
.08
>.05
.44
.28
.75
J
1
2
3
4
5
6
7
8
9
10
1 1
12
13
14
15
16
17
18
Run
**9
20
21
22
23
2k
25
26
27
28
29
21
22
30
31
INITIAL SULFUR=4.29%, INITIAL PYRITIC SULFUR=3.58%
-6-
-------
ASH DATA
BTU DATA
ASH
L0SS
ABS %
3. 13
4. 10
2.20
2.03
2.30
1.74
1.72
.74
.39
2.29
-.70
2.20
2.03
.24
1. 14
2.03
2.45
3.70
ASH
L0SS
REL %
15.1
19.7
10.6
9.8
11.1
8.4
8.3
3.6
1.9
1 1 .0
-3.4
10.6
9.8
1.2
5.5
9.8
1 1 .8
17.8
ASH ASH(EXPT) FINAL
FINAL ASHCCALC) BTU
%
17.64
16.67
18.57
18.74
18.47
19.03
19.05
20.03
20.38
18.48
21.47
18.57
18.74
20.53
19.63
18.74
18.32
17.07
1.26
1.79
.99
.95
.85
.75
.60
.39
.20
1.08
-.43
.99
.95
.15
.66
1 .06
.91
1 .39
12436
12842
12150
12145
12087
12176
12277
12109
1 1882
12471
1 1830
12150
12145
11953
11957
12310
12333
12614
BTU
CHANGE
REL
2.
5.
*
0
- 9
*
1 .
• *
-2.
2.
-2.
.
.
-1 .
-1 .
1 .
1 .
3.
%
43
75
08
04
43
30
12
25
11
71
54
08
04
53
50
39
58
89
BTU-ASH
FREE
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
5065
5369
4870
4890
4801
4993
5151
5070
4857
5243
4976
4870
4890
4954
4797
5082
5075
5187
BTU-ASH
FREE
REL %
100.0
102.0
98.7
98.8
98.2
99.5
100.5
100.0
98.6
101 .2
99. 4
98.7
98.8
99.2
98.2
100. 1
100.0
100.8
J
1
2
3
4
5
6
7
8
9
10
1 1
12
13
1 4
15
16
17
18
Run
^9
20
21
22
23
2k
25
26
27
28
29
21
22
30
31
INITIAL ASH=20.77%, INITIAL BTU=12140* INITIAL ASH FREE BTU=15069
IR0N BALANCE
FE3
INITIAL
MM
524
524
471
471
472
472
472
446
446
443
452
471
471
493
484
447
526
526
FE2
FINAL
MM
274
270
264
233
419
280
435
348
310
339
378
264
233
326
313
255
356
425
FE3
USED
%
46.6
46. 1
50. 1
43.7
82.2
53.7
85.3
73.2
64.2
71 .0
79.3
50. 1
43.7
62.3
60.6
52.1
61 .6
74.8
FE2 FE2(EXPT>
CALC FE2CCALO
MM J
262
263
208
182
312
174
347
293
261
286
209
208
162
242
219
208
336
391
.05 1
.03 2
.27 3
.28 4
.34 5
.61 6
.25 7
.19 8
.19 9
. 18
.81
.27
.28
.35
.43
.22
.06
.09
0
1
2
3
4
5
6
7
8
Pt i n
r\u 1 1
k3
20
21
22
23
2k
25
26
27
28
29
21
22
30
-31
-7-
-------
C0AL MATERIAL BALANCE
INITIAL
WEIGHT
G
93.0
95.6
98. 1
97.8
88.6
87. 5
88.3
88.7
91 . 1
88.7
90.2
98. 1
97.8
89.4
88.2
88.9
92.6
92.2
FINAL
WEIGHT
G
89.4
92.3
92. 1
91.5
85.4
79.6
80.4
86.1
89.2
85.6
87.6
92. 1
91.5
85. 5
86.2
86. 1
90.0
87.7
PYRITE
REM0VED
G
3.4
3.3
3.2
3. 1
3.6
3.0
3.8
2.5
2.7
2.8
2.2
3.2
3. 1
2.2
2.3
2.5
3.7
3.7
T0TAL
WEIGHT
G
92.8
95.6
95.3
94.6
89.0
S2.6
84.2
88.6
91 .9
88.4
89.8
95.3
94.6
87.7
88.5
88.6
93.7
91 . 4
RECOVERY
%
99.8
100.0
97.2'
96.7
100.4
94.4
95.3
99.9
100.9
99.6
99.5
97.2
96.7
98. 1
100.3
99.7
101 .2
99. 1
J
1
2
3
4
5
6
7
8
9
10
1 1
12
13
14
15
16
17
18
Run
<»9
20
21
22
23
2k
25
26
27
28
29
21
22
30
31
-8-
-------
ILLINOIS #5 C'3AL
INITIAL ASH=10.962, INITIAL BTU=12801, INITIAL ASH FREE J.J1U= 14278
INITIAL SULFUR=3.48fc* INITIAL PYRMIC SULFUK=1.57%
DATA SUMMARY
ASH(EXPT)
ASH(CALC)
2.92
6.68
. 1 .74
2.07
1.13
1 .93
• 2.25
1 .89
2. 1 A
1 . Al
1 .59
1 .7 A
'ii • 0 "/
- .99
.94
1 .61
2.40
1 .89
BTU-ASH
FREE
%
98.6
97. 1
96.7
98.0
96. 6
97. 5
98.0
98.2
97.6
98. 3
98.0
96.7
98.0
94. 4
97. 1
97.9
97.4
96.5
SULFUR
CLOSURE
%
0.0
0.0
82.2
81 .3
87.9
0.0
95.3
97.1
97.3
0.0
0.0
82.2
81 .3
88.7
0.0
98.2
99.0
100.5
MATERIAL
CL0SURE
%
102.6
100.9
87.2
87.5
99. 1
96.8
99.5
96.2
96.3
98. 1
98. A
87. y
87 . 6
9f<.0
99.7
96.2
97.8
98.6
FE2(EXPT) SULFATE SULFUR
FE2(CALC) SULFUR REMOVED
3.71
% J
.76 36.3 1
4.03 8.10 19.7 2
6.91 1
7.35 1
5.37 1
6.20
5. 1 1 1
4.03
.20 40.1 3
.81 40.1 4
.51 66.9 5
.45 58.6 6
.48 52.9 7
.47 50.3 8
4.24 2.70 42.0 9
3.66
.98 47.1 0
3.84 2.07 48.4 1
6.91
7.35
6.83
6. 34
4.03
3.65
3.09
.20 40. 1 2
. 8 1 40 . 1 3
.30 50.3 4
.28 62.4 5
.47 47.8 6
.77 49.0 7
.97 66.2 8
Run
&
35
36
37
38
39
40
41
42
43
44
36
37
45
46
SULFUR BALANCE
FINAL
COAL
%S
2.91
3. 17
2.85
2.85
2. 43
2.56
2.65
2.69
2.82
2.74
2.72
2.85
2.85
2.69
2.50
2.73
2.71
2.44
PYRITIC
L3SS
MM S
17.6
9.3
18.2
18.2
27.1
24.0
22.4
20.5
17.2
19.3
20.0
18.2
18.2
20.7
25.2
19.5
21 .0
29.5
T0LUENE
EXTRACT
MM S
9.8
1 .0
5. 1
3.6
6.9
1 5. 4
7.5
8.3
4.7
9.3
6.3
5.1
3.6
5.3
18.6
8.3
7.8
10.4
SULFATE
MM S3 4
7. 4
8.2
6. 1
6.5
10.4
6.9
11.1
12.2
12.7
9.1
13. 1
6. 1
6.5
6.9
5.2
12.2
13.8
20.5
TidTAL
RECOVERED
MM S
0.0
0.0
78.6
77.8
75.5
o.o
85. 4
83.4
83.7
0.0
0.0
. 78.6
77.8
76.8
0.0
84.4
89.3
94.9
SULFUR SULFATE
BALANCE SULFUR
%
0.0 .76
0.0 8.10
82.2 .20
81.3 .81
87.9 .51
0.0 .45
95.3 .43
97.1 . 47
97.3 2.70
0.0 .98
0.0 2.07
82.2 .20
81.3 .81
88.7 .30
0.0 .28
98.2 .47
99.0 .77
100.5 .97
J
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
18
p»
Run
34
35
36
37
38
39
40
41
42
43
44
36
37
45
46
INITIAL SULFUR=3.48%> INITIAL PYRITIC SULFUR=1.57%
-9-
-------
ASH DATA
BTU DATA
ASH
L0SS
ABS %
2.10
2.61
1.38
1.64
1.49
2.24
2.35
1.83
.78
.37
.52
.38
.64
-.99
1.16
1.52
2.33
2.48
ASH
L'3SS
KEL %
19.2
23.8
12.6
15.0
13.6
20.4
21.4
17.2
16.2
12.5
13.9
12.6
15.0
-9.0
10.6
13.9
21.3
22.6
ASH
FINAL
%
8.86
8.35
9.53
9.32
9.47
8.72
8.61
9.08
9.18
9.59
9. 44
9.58
9.32
1 1.95
9.80
9. 44
8.63
8.48
ASH(EXPT)
ASH (CALC)
2.92
6.68
1.74
2.07
1.13
1.93
2.25
1 .89
2.14
1.47
1.59
1.74
2.07
-.99
.94
1 .61
2.40
1.89
FINAL
BTU
12618
12520
12284
12486
12260
12481
12569
12533
12448
12473
12451
12284
12486
1 1665
12284
12448
12495
12381
BTU BTU-ASH
CHANGE FREE
REL %
-1.40 14073
-2.15 13869
-3.96
-2.41
-4. 14
-2.45
-1 .78
-2.05
-2.70
-2.51
-2.68
381 1
3999
3794
3920
3996
4025
3937
4033
3986
-3.96 13811
-2.41 13999
-8.69 13476
-3.96 13867
-2.70 13982
-2.34 13912
-3.21 13779
BTU-ASH
FREE
REL %
98.6
97. 1
96.7
98.0
96. 6
97.5
98.0
98.2
97.6
98.3 1
98.0 1
96.7
98.0
94. 4
97. 1
97.9
97. 4
96. b
Run
I\UI 1
J
1 34
2 35
3 36
4 37
5 38
6 39
7 40
8 41
9 42
0 43
l 44
2 36
3 37
4 45
5 46
6
7
8
INITIAL ASH=10.96%, INITIAL BTU=12801, INITIAL ASH FREE 3TU=14278
IRON BALANCE
F
E3
INITIAL
MM
524
498
462
462
463
472
481
437
446
435
443
462
462
484
484 .
437
516
573
FE2
FINAL
MM
260
254
369
398
474
464
483
419
434
301
414
369
398
408
424
419
420
524
FE3
USED
47
50
77
84
99
95
98
93
95
67
91
77
84
82
85
93
79
88
%
•
.
.
.
.
•
.
•
.
.
.
•
•
*.
.
.
.
.
9
1
9
2
4
8
1
5
4
0
2
9
2
2
0
7
4
9
FE2
CALC
MM
70
63
53
54
88
75
94
104
102
82
108
53
54
60
67
104
115
169
FE2
FE2
3
4
6
7
5
6
5
4
4
3
3
6
7
6
6
4
3
3
(EXPT)
(CALC)
.71
.03
.91
.35
.37
.20
. 1 1
.03
.24
.66
.84
.91
.35
.83
.34
.03
.65
.09
1
1
1
1
1
1
1
1
1
J
1
2
3
4
5
6
7
8
9
0
1
£
3
4
5
6
7
8
Run
r\u 1 1
34
35
36
37
38
39
40
41
42
43
44
36
37
45
46
-10-
-------
C0AL MATERIAL BALANCE
INITIAL
WEIGHT
G
93.8
90.4
88.0
88.0
79.0
79.6
82.4
79.0
79.1
79. 4
80. 1
88.0
88.0
79.7
78.7
79.0
82.9
86.3
FINAL
WEIGHT
G
95.2
90.7
75.7
76.0
76.7
75.7
80.7
74.8
75.2
76.8
77.7
75.7
76.0
76.9
77.0
74.9
79.9
83.9
PYRITE
REMOVED
G
1 .0
.5
1 .0
1 .0
1.6
1 .4
.3
.2
.0
. 1
. 1
.0
1.0
1.2
1 .4
1 . 1
1 .2
1 .7
T0TAL
WEIGHT
G
96.2
91 .2
76.7
77.0
78.3
77. 1
82.0
76.0
76.2
77.9
78.8
76.7
77.0
78. 1
78. 4
76.0
81 . 1
85.6
REC0VEKY
%
102.6
100.9
87.2
87.5
99. 1
96.8
99.5
96.2
96.3
98. 1
98. 4
87.2
87.5
98.0
99.7
96.2
97.8
98.6
J
1
2
3
A
b
6
7
8
9
10
1 1
12
13
14
15
16
17
18
Run
^
35
36
37
38
39
AO
J»l
k2
^
kk
36
37
kS
k6
-11-
-------
PITTSBURGH C0AL
INITIAL ASH=22.73%, INITIAL BTU=11493, INITIAL ASH FREE BTU=14787
INITIAL SULFUR=1.88%* INITIAL PYRITIC SULFUR=1.20%
DATA SUMMARY
ASHCEXPT)
ASH(CALC)
1.53
3.98
1 .85
1.14
1.23
1 .56
2. 12
1 .93
1 .72
.56
.86
1.85
1*14
2.64
2.24
1 .55
2.52
2.53
BTU-ASH
FREE
%
99.3
100.3
105. 1
96.8
94.5
96.0
97.8
98.7
99.4
103.4
95.2
105.1
96.8
97.8
97.9
99.7
97.3
98.8
SULFUR
CL0SURE
%
0.0
87.8
0.0
0.0
101 .6
o.o
1 12.5
101 .3
0.0
98.1
0.0
0.0
0.0
105.7
0.0
104.3
107.3
1 15.3
MATERIAL
CL0SURE
%
98.8
81.8
101.7
100.5
100.2
103.6
100.9
97. 1
98.5
96.3
106.0
101 .7
100.5
101.5
102.4
100.5
100.8
100.2
FE2
-------
ASH DATA
BTU DATA
ASH
LOSS
ABS %
1. 14
2.46
1.61
.05
.43
.77
2.62
.73
.65
.53
.74
1.61
1.05
2.26
1.69
1.37
2.54
2.17
ASH
L0SS
REL %
5.0
10.8
7.1
4.6
6.3
7.8
11.5
7.6
7.3
2.3
3.3
7. 1
4.6
9.9
7.4
6.0
1 1 .2
9.5
ASH ASH(EXPT) FINAL
FINAL ASH(CALC) BTU
%
21.59 1
.53 11490
20.27 3.98 11798
21. 12
21.68
21.30
20.96
20.11 £
21.00
21 .08
22.20
21.99
21.12
21.68
.85 12226
.14 11 179
.23 10951
.56 I 181
J.I 2 1 500
.93 1 497
.72 1 561
.56 1 851
.86 10956
.85 12226
.14 1 179
20.47 2.64 1 462
21.04 2.24 1 401
21.36 1
.55 1 561
20.19 2.52 1 443
20.56 2.53 1 576
BTU BTU-ASH
CHANGE FREE
REL %
-.03
2.64
6.34
-2.72
-4.69
-2.70
.06
.03
.59
3. 10
-4.65
6.34
-2.72
-.27
-.80
.59
-.43
.72
4691
4829
5548
4318
3971
4202
4458
4598
4698
5284
4084
5548
4318
4455
4476
4746
4388
4615
BTU-ASH
FREE
REL %
99. 3
100.3
105. 1
96.8
94.5
96.0
97.8
98.7
99.4
103.4
95.2
105. 1
96.8
97.8
97.9
99.7
97.3
98.8
J
1
2
3
4
5
6
7
8
9
10
1 1
12
13
14
15
16
17
18
Run
*9
50
51
52
53
&
55
56
57
58
53
5\
52
60
61
INITIAL ASH=22.73%> INITIAL BTU=11493, INITIAL ASH FREE BTU=14787
IR0N BALANCE
FES.
INITIAL
MM
524
524
524
524
524
533
533
495
495
493
501
524
524
538
547
524
573
621
FE2
FINAL
MM
112
1 12
268
262
353
415
488
288
329
390
298
268
262
340
298
289
390
274
FE3
USED
%
19.5
19.9
49. 1
47.8
64.6
75.2
88.6
55.9
64.0
76.7
57.3
49. 1
47.8
61.2
52.8
53. 1
65.8
42.3
FE2
CALC
MM
85
82
108
102
132
113
168
134
145
118
129
108
102
102
86
1 18
150
166
FE2(EXPT)
FE2CCALC)
1.31
1 . 37
2.48
2.56
2.67
3.66
2.90
2. 15
2.26
3.32
2.30
2.48
2.56
3.33
3.46
2.46
2.59
1 .65
J
1
2
3
4
5
6
7
8
9
10
1 1
12
13
14
15
16
17
18
Run
**9
50
51
52
53
51*
55
56
57
58
53
51
52
60
61
-13-
-------
C0AL MATERIAL BALANCE
INITIAL
WEIGHT
G
103.1
101.1
97.9
97.2
99.2
99.6
99.9
101. 1
100.0
99.5
101.1
97.9
97.2
97.9
98.2
97.2
99.6
105.2
FINAL
WEIGHT
G
100.7
81.8
98.3
96.4
97.7
101.5
99.0
96.8
97.1
94.4
105.9
98.3
96.4
98. 1
99.5
96.4
98.9
104.1
PYRITE
REMOVED
G
1. 1
.9
1.3
1.3
1.7
1.7
1.8
1.3
1 .4
1.4
1.3
1 .3
1.3
1.2
1.1
1.3
1.5
1.3
T0TAL
WEIGHT
G
101.8
82.7
99.6
97.7
99.4
103.2
100.8
98. 1
98. 5
95.8
107.2
99.6
97.7
99.3
100.6
97.7
100.4
105.4
KEC0VERY
%
98.8
81.8
101.7
100.5
100.2
103.6
100.9
97.1
98.5
96.3
106.0
101.7
100.5
101.5
102.4
100.5
100.8
100.2
J
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
Run
1*9
50
51
52
53
5^
55
56
57
58
59
51
52
60
61
-14-
-------
HERRIN #6 C0AL
INITIAL ASH=10.31%, INITIAL BTU=12684, INITIAL ASH FREE BTU=14039
INITIAL SULFUR=3.80%, INITIAL PYRITIC SULFUR=1.65%
DATA SUMMARY
ASH(EXPT)
ASHCCALC)
.89
.45
2.54
2.59
1.49
1 .73
1 .83
1 .65
1 .23
2.04
1.65
2.54
2.59
1.16
-.25
1 .74
1 .47
1.71
BTU-ASH
FREE
%
100.0
99.5
96.9
98.0
98.2
97.3
97.4
98.2
98.4
98.0
98.0
96.9
98.0
96.9
98.6
98. 1
99.3
98.5
SULFUR
CL0SURE
%
76.5
0.0
94.3
90.7
93.8
88.2
99.3
100. 1
0.0
0.0
95.9
94.3
90.7
92.2
0.0
95.8
87.6
98.2
MATERIAL
CL0SURE
%
90.3
101.4
95.5
97.8
100.3
98. 1
97.8
98.9
98.7
97.7
97.1
95.5
97.8
99.5
101.7
98.9
93.5
92.7
FE2CEXPT)
FE2CCALC)
5.36
3.74
5.42
9.66
4.22
5.76
4.21
3.28
3.48
2.53
3.67
5.42
9.66
6.68
5.90
3.91
3.31
3.25
SULFATE
SULFUR
1 .22
.35
1.14
.56
. Ib
.28
. 13
.99
.96
2.98
1 .39
1.14
.56
1.22
.26
1 .53
1.29
1 .03
SULFUR
REM0VED
%
67.9
72. 1
41 .8
39.4
70.3
61.8
64.2
51 .5
64.8
53.9
49. 1
41 .8
39.4
46.7
55.2
51 .5
65.5
53.3
J
1
2
3
4
5
6
7
8
9
0
1
2
3
4
15
16
17
18
Run
r\uM
6k
65
66
67
68
69
70
71
72
73
66
67
76
75
76
SULFUK BALANCE
F I IMAL
C0AL
%S
2.68
2.61
3.1 1
3. 1 5
2.64
2.78
2.74
2.95
2.73
2.91
2.99
3. 1 1
3. 15
3.03
2.89
2.95
2.72
2.92
PYRITIC
L0SS
MM S
30.8
32.2
19.3
18. 1
28.7
27.5
26.9
21 .5
27.7
23.6
20.0
19.3
18. 1
22.8
26.4
21.5
31 .5
25.7
T0LUENE
EXTRACT
MM S
6.4
23.4
8.1
6.8
10.7
7.6
13.0
7.5
9.2
5.8
7.7
8. 1
6.8
6.7
20.7
7.3
10.2
14.6
SULFATE
MM S04
7.8
8.2
9.2
3.8
12.3
9.7
1 4.7
14.9
18.0
17.4
10.7
9.2
3.8
8.2
5.3
1 1.2
13.2
15.1
TOTAL
REC0VERED
MM S
76.2
0.0
95.0
90.4
84. 1
85.8
91 . 1
91 .2
0.0
0.0
85.4
95.0
90.4
98.0
0.0
87.3
92.4
103.2
SULFUR
BALANCE
%
76.5
0.0
94.3
90.7
93.8
88.2
99.3
100. 1
0.0
0.0
95.9
94.3
90.7
92.2
0.0
95.8
87.6
98.2
SULFATE
SULFUR
1.22
.35
1.14
.56
1.15
1.28
1.13
1 .99 '
1 .96
2.98
1 .39
1.14
.56 ..
1 .22
.26
1.53
1 .29
1.03
J
1
2
3
4
5
6
7
8
9
10
1 1
12
13
14
15
16
17
18
Di m
Kun
6k
65
66
67
68
69
70
71
72
73
66
67
76
75
76
INITIAL SULFUR=3.80%, INITIAL PYRITIC SULFUR=1.65%
-15-
-------
ASH DATA
BTU DATA
ASH
L0SS
ABS %
1.26
.68
2.21
2.12
2.18
2.22
2.45
1.77
1.66
2.29
1.68
2.21
2. 12
1.13
-.29
1.86
2.00
1.90
ASH
L0SS
REL %
12.2
6.6
21 .A
20.6
21.1
21.5
23.8
17.2
16. 1
22.2
16.3
21 .4
20.6
1 1.0
-2.8
18.0
19.4
18.4
ASH
FINAL
%
9.05
9.63
8.10
8.19
8.13
8.09
7.86
8.54
8*65
8.02
8*63
8. 10
8.19
9. 18
10.60
8.45
8.31
8.41
ASHCEXPT
ASH
-------
C0AL MATERIAL BALANCE
INITIAL
WEIGHT
G
83.9
82.5
84.8
84.0
75.5
81.9
77.3
76.7
78.7
80.5
75.0
84.8
84.0
89.5
88.2
76.7
88.8
88.5
FINAL PYRITE
WEIGHT REM0VED
G G
74.0
81.8
79.9
81.1
74. 1
78.8
74. 1
74.6
76. 1
77.3
71.7
79.9
81.1
87.8
88.2
74.6
81.2
80.6
.8
.8
.1
.0
.6
.6
.5
.2
.6
.3
. 1
.1
.0
.3
.5
.2
.8
.5
T0TAL
WEIGHT
G
75.8
83.6
81.0
82. 1
75.7
80.4
75.6
75.8
77.7
78.6
72.8
81 .0
82. 1
89. 1
89.7
75.8
83.0
82. 1
RECOVERY
%
90.3
101.4
95.5
97.8
100.3
98. 1
97.8
98.9
98.7
97.7
97.1
95.5
97.8
99.5
101 .7
98.9
93.5
92.7
J
1
2
3
4
5
6
7
8
9
10
1 1
12
13
14
15
16
17
18
Run
6k
65
66
67
68
69
70
71
72
73
66
67
76
75
76
-17-
-------
APPENDIX A-3. FERRIC SULFATE EXPERIMENTATION.
Reaction conditions for triplicate runs:
a) 225 mM 0.375M ferric sulfate (600 ml) per 90-100 g coal
530 mM 0.375 M^ ferric sulfate (1.2 £ ) per 90-100 g Lower Kittanning
Coal
b) 2.0 hour reaction time
c) Coal filtered, washed and extracted 1 hour with 300 ml toluene,
then dried at 150-170°C under vacuum.
-18-
-------
L0WER KITTANNING C0AL
INITIAL ASH=20.77%, INITIAL BTU=12140, INITIAL ASH FREE BTU=lS069
INITIAL SULFUR=4.29%, INITIAL PYRITIC SULFUR=3.58%
DATA SUMMARY
SULFUR
CL0SURE
%
0.0
0.0
0.0
MATERIAL
CL0SURE
%
98.4
98.5
88.4
FE2CEXPT)
FE2(CALC)
1 .25
1 .05
1.21
SULFATE
SULFUR
1 .22
1 . 53
1 .33
SULFUR
REM0VED
%
35. 5
38.8
39.7
J
1
2
3
SULFUR BALANCE
FINAL
C0AL
%S
3.02
2.90
2.87
PYRITIC
L0SS
MM S
36.7
40.3
41 .4
T'JLUENE
EXTRACT
MM S
16.4
1 5.8
16.5
SULFATE
MM S04
20.0
24. 1
22.0
10TAL
REC0VERED
MM S
0.0
0.0
o.o
SULFUR
BALANCE
%
0.0
0.0
0.0
SULFATE
SULFUR
1 .22
1 .53
1 .33
J
1
2
3
INITIAL SULFLIR=4.29%, INITIAL PYRI1IC SULFUK=3. 58/o
IR0N BALANCE
FE3
INITIAL
MM
467
467
467
INITIAL
WEIGHT
G
87.5
88*0
88.5
FE2
FINAL
MM
218
214
230
C0AL
FINAL
WEIGHT
G
84.0
84.4
75.9
FE3 FE2 FE2
USED CALC FE2
% MM
42.8 174 1
41.5 205 1
44.8 190 1
MATERIAL BALANCE
PYRITE T0TAL
REM0VED WEIGHT
G G
2.1 86.1
2.3 86.7
2. 4 78.3
(EXPT)
(CALC)
.25
.05
.21
J
1
2
3
RECOVERY
%
98.4
98.5
88.4
J
1
2
3
-19-
-------
ILLIN0IS #5 C0AL
INITIAL ASH=10.96%, INITIAL BTU=12801, INITIAL ASH FREE BTU=14278
INITIAL SULFUR=3.48%, INITIAL PYRITIC SULFUR=1.57%
DATA SUMMARY
SULFUR
CL0SURE
%
o.o
o.o
o.o
MATERIAL
CL0SURE
%
82.9
97.8
97.3
FE2CEXPT)
FE2CCALO
1 .81
1 .43
1.72
SULFATE
SULFUR
2.29
4.31
3.55
SULFUR
REM0VED
%
43.9
45.9
38.9
J
1
2
3
SULFUR BALANCE
FINAL PYRITIC T0LUENE SULFA1E T0TAL
SULFUR SULFATE
C0AL
%S
2.79
2.76
2.87
L0SS
MM S
21 . 1
21.1
17.2
EXTRACT
MM S
5.6
3.9
3.7
MM S04
12.9
16.8
13. 1
REC0VERED
MM S
o.o
o.o
o.o
BALANCE
%
o.o
o.o
o.o
SULFUR
2.29
4.31
3.55
J
1
2
3
INITIAL SULFUK=3.48%, INITIAL PYRITIC SULFUK=1.57%
ASH DATA
ASH . ASH ASH ASHCEXPT) FINAL
L0SS L0SS FINAL ASHCCALC) BTU
A8S % REL % %
BTU DATA
BTU
CHANGE
KEL "/,
BTU-ASH
FREE
BTU-ASH
FREE
REL %
J
1
2
3
INITIAL ASH=10.96%, INITIAL BTU=12801, INITIAL ASH FKEE BTU=14278
IR0N BALANCE
J
1
2
3
FE3
INITIAL
MM
226
226
226
FE2
FINAL
MM
190
189
179
FE3
USED
%
79.4
79.0
75.4
FE2
CALC
MM
105
132
104
FE2(EXPT)
FE2CCALC)
1 .81
1 .43
1 .72
C3AL MATERIAL BALANCE
INITIAL
WEIGHT
G
93.0
89. 1
85.6
F I NAL
WEIGHT
G
75.9
85.9
82.3
PYRITE
REM0VED
G
1 .2
1 .2
1 .0
T0TAL
WEIGH'l
G
77. 1
87. 1
83.3
REC0Vi
%
82.9
97.8
97. 3
J
1
2
3
-20-
-------
PITTSBURGH C0AL
INITIAL ASH=22.73%, INITIAL BTU=11493, INITIAL ASH FREE BTU= 14787
INITIAL SULFUR=1.88%, INITIAL PYRITIC SULFUR=1.20%
DATA SUMMARY
SULFUR MATERIAL FE2CEXPT) SULFATE SULFUK
CL0SURE CL3SURE FE2CCALC) SULFUK KEM0V/ED
% % /, J
0.0 99.0 2.02 1.73 2b.8 1
0.0 98.2 1.2b 2.26 40.0 2
0.0 96.b 1.19 2.41 34.2 3
SULFUR BALANCE
T3TAL
FINAL
C0AL
%S
1 .57
1 .40
1 . 41
PYRITIC
L3SS
MM S
10.4
16.2
1 3.9
T0LUENE
EXTRACT
MM S
3.8
4.9
3.9
SULFATE
MM S04
6.6
11.1
9.6
RECOVERED
MM
t).
0.
0,
SULFUK
BALANCE
'/,
0.0
0.0
0.0
SULFATE
SULFUR
1 .73
2.26
2.47
J
1
2
3
INITIAL SULFUK=1.88%, INITIAL PYRITIC SULFUR=1.20%
IR0N BALANCE
FE3
INITIAL
MM
226
226
226
FE2
FINAL
MM
1 1 1
1 13
93
FE3
USED
%
46.8
46.4
38* 1
FE2
CALC
MM
55
91
78
FE2(EXPT)
FE2CCALC)
2.02
1 .2b
1 . 19
J
1
2
3
C0AL MATERIAL BALANCE
INITIAL
WEIGHT
G
104.7
105.2
105.5
FINAL
WEIGHT
G
103.0
102.4
101 .0
PYKITE
REM0VED
G
.6
.9
.8
T0TAL
WEIGH!
G
103.6
103.3
101.8
KEC0VERY
%
99.0
98.2
96.5
J
1
2
3
-21-
-------
HERRIN #6 C0AL
INITIAL ASH=10.31%, INITIAL BTU=12684, liMITIAL ASH FREE BTU=14039
INITIAL SULFUR=3.80%, INITIAL PYRITIC SULFUR=1.65%
MATERIAL
CLOSURE
97.7
97.9
98.6
DATA SUMMARY
FE2CEXPT) SULFATE
FE2CCALC) SULFUR
2.20
3.78
2.33
5.94
1 .27
2.02
SULFUR
REMOVED
35.8
24.2
32.7
J
1
2
3
SULFUR BALANCE
FINAL
COAL
%s
3.21
3.40
3.26
PYRITIC
L0SS
MM S
16.3
1 1.0
14.9
T0LUENE
EXTRACT
MM S
2.3
4.8
4.9
SULFAT
MM S04
13.7
6. 1
9.9
T0TAL
RECOVERED
MM S
0.0
0.0
0.0
SULFUR
BALANCE
%
0.0
0.0
0.0
SULFATE
SULFUR
5.94
1 .27
2.02
INITIAL SULFUR=3.80%, INITIAL PYRITIC SULFUR=1.65%
J
1
2
3
IR0N BALANCE
FE3
INITIAL
MM
226
226
226
FE2
FINAL
MM
233
200
190
FE3
USED
%
99.5
86.1
80.8
FE2
CALC
MM
106
53
81
FE2(EXP'i)
FE2CCALO
2.20
3.78
2.33
J
1
2
3
C0AL MATERIAL BALANCE
INITIAL
WEIGHT
G
83.3
83.0
83.3
FINAL
WEIGHT
G
80.5
80.6
81.3
PYRITE
REMOVED
G
.9
.6
.8
T0'1AL
WEIGHT
G
81.4
81.2
82. 1
RECOVERY
%
97.7
97.9
98.6
J
1
2
3
-22-
-------
I
rss
oo
PROGRAM' COAL5 ( INPUT, OUTPUT , TAPES ,TAPE6 )
DIMENSION ASH(50) ,SAH(50)
C ONE COAL PER RUN
C DIMENSION STATEMENTS FOR PROGRAM VARIABLES
1 DIMENSION SF( 50) ,ASHF(50) ,BTUF( 50) ,FE2F(50) ,FE3IN(50)
2 DIMENSION CF ( 50 ) , C I ( 50 ) , AMS { 50) , AMS04( 50) , AMCS04 ( 50) , SOAF ( 50)
3 DIMENSION S PL OSS (50) , ASHLOSSt 50 ) , BTUGA I N ( 50 ) , SAHLOSS ( 50) ,ASHR(50) i
1ASHREL(50),BTUFAC(50),FES2REM(50) , C FT ( 50 ) , TOTREC ( 50 ) , XMATCLSt 50) ,
2AMSF(50) ,AMSI (50) ,AMPLOSS( 50) ,AKFS(50) , SUL SUM ( 50 ) , SBAL( 50 )
m a>
z z
m ^
—1 00
•— i i— i
O OO
e~ t
Tl
O
r>
•30
m
C INPUT VARIABLES-SUBSCRIPTED
C J=SUBSCRIPT-NUMBER OF RUNS , SF=FINAL SULFUR, ASHF=F INAL ASH,BTUF=
C FINAL BTU, CI=INITIAL COAL WT.,CF=FINAL COAL WT. ,F E2F=F INAL FE(2)t
C FE3IN= INITIAL FE(3). COAL IS DRY WEIGHT. IRON IS IN MM.
PRINT 700
PRINT 700
IF
-------
151'i DO 13 J= It L
12 ACCEPT (8) SFU) ,S04F< J) ,ASHF( J) ,8TUF{ J) ,CI (J) ,CF( J) ,FE3IN( J),
1FE2FU),AMS
-------
40
' " , >•£> "
Jl«SFrO) )/3.2
42
43
45
47
48
49
50
490
AMSI (J)
AMCS04(
AMPLOSS
J
(
AMFS(J)=
SULSUMU
SBAL(J)=
IF(AMS(
IF(AMS(
AMS(J)=
J
J
(
(
)
J
(
)
(
CI(J)
= (CFT
)=AMS
*SI
(J)
I ( J
) / 3 . 2
*S04(J
)-AMSF
CF(J)*SF( J))/3
=AMFS< J)+AMS( J
SULSUM( Jl/AMSI
) )
(J
/3.2
)+AMCS04(J)
.2
)+AMS04(J)
(JJ)*100.
l.EO.O) SBAL(J)=0
M 49,49,50
AMPLOSS( J)-AMS04(
SULSUM( J)=0.0
IF ,BTUCOR(J),XMATCLS(J>,
1RATIOIJ),STREM(J),SPREM(J),J
100 CONTINUE
700 FORMAT (3
-------
23X*SULfHJR*/*ASH{CALC) FREE*5X*CLOSURE*3X*MM SULFUR*
33X*REMOVED*2X*REMOVED*/14X*S*9X*<*6X*REMOVED*7X*S*15X*J*)
202 FORMAT (F7.2,F9.1,F1«.1,F11.2,F10.2,F9.1,I 6)
IF (1-2) 14,15,16
16 IF (1-4) 17,18,19
14 PRINT 140
GO TO 191
15
17
PRINT 150
GO TO 191
PRINT 170
18
GO TO 191
PRINT 180
GO TO 19'1
19 PRINT 190
140 FORMAT (/*LOHER KITTANNING COAL*)
150 FORMAT (/*ILL1NGIS »5 COAL*)
170 FORMAT f7*PlTTSBURGH COAL*)
180 FORMAT (/*HERRIN *6 COAL*)
190 FORMAT l/*SPECIAL COAL*)
PO
191 PRINT 900, ASHI,BTU I ,BTUCORI
192 PRINT 800, SI,SP,S04I
IF (MFLAG-2) 801,801,802
801 IF (NFLAG-4) 2001,299,306
2001 IF (NFLAG-2) 901,499,810
IRON BALANCE OUTPQUT
f\ rt T k » T T t~l f\
299 PRINT 700
PRINT 300
300 FORMAT (26X*IRON
BALANCE*//*FE3*6X*FE2*4X*FE3*4X*FE2*4X*FE2(EXPT)*
12X*FE2(EXPT)*2X*MM FE2/*/*INITIALFINALUSEDCALCFE2(CALC^*
22X*FE2(CALC-*2X*MM SULFUR*/
32X«MM»6X*MM»6X*$*5X»MM*4X»SULFATE)»3X*SULFUR)«4X»REMOVED«5X*J«)
301 DO 305 J=K,L
PRINT 302, FE3IN(J),FE2F(J),FE3USED(J),AMFE2(J),FERATIO(J),
1RATIOFE
-------
2*HEIGHT*3X»WEIGHT»3X*KEMOVED»3X»ASH«5X*EXTRACT«2X*HEIGHT»/
401
DO 405 J=K,L
PRINT 403, CI ( J ) ,CF ( J ) , FES2REM( J ) , ASHW< J ) , TOL EXT ( J ) ,
1TOTRECU),XMATCLS( J),J
403 FORMAT (F5.1,6F9. 1 , 18)
405 CONTINUE
PRINT 700
GO TO 901
SULFUR BALANCE
OUTPUT
499 PRINT 700
PRINT 500
500 FORMAT (19X*SULFUR
BALANCE*//X*FINAL FINAL PYRITIC TOLUENE*
12X*SULFATE SULFAT6*/X*COAL*3X*COAL*3X*LOSS EXTRACT*2X*CALC.*
24X*SULFUR*/2X*SS*4X*
-------
TAPE Oftf PUT*' * • '
DATA SUMMARY OUTPUT
I
ro
oo
802
WRITE
WRITE
(6,700)
(6,200)
1201 DO 1205 J=K,L
WRITE (6,202) ASHR
-------
"' 1 SOARAT(J) , J
1505 CONTINUE
WRITE (6,800) SI,SP,S04I
C OUTPUT - BTU AND ASH DATA
WRITE (6,700)
WRITE (6,600)
1601 DO 1605 J=K,L
1602 WRITE (6,603) ASHLOSS(J),ASHREL(J),ASHF(J),ASHR(J),BTUF(J),
1BTUREKJ),BTUCORF(J),BTUCOR(J) , J
1605 CONTINUE
WRITE
GO TO
1606 WRITE
(6,900*
1193
(6,700)
ASHI,8TUI,8TUCORI
WRITE (6,700)
PRINT 1002
PRINT 1002
PRINT 1000
1000 FORMAT (*DO YOU WISH TO SAVE TAPE 6 2*)
1001 PRINT 1002
1002 FORMAT (///)
END
ro
vo
i
-------
APPENDIX A-5. IN SITU REGENERATION OF FERRIC SULFATE LEACH SOLUTION
Nominal Reaction Conditions:
a) lOOg -100 mesh Illinois #5 coal
b) 2.4 liters l.ON^ ferric sulfate solution, 0.05M in
copper sulfate
c) 4.0 hours reaction time, plus 40 min. warm-up with
no gas flow
d) Reaction temperature 95°
e) Oxygen or nitrogen flow rate 200 ml/min through a
fine (4-5.5) fritted glass disc)
f) Coal filtered, washed 4 times on filter funnel,
slurried at least 1 hour at 80°; filtered dry, then
extracted twice for 3/4 hour with 300 ml toluene
at reflux
g) Dried overnight at 150 - 170°C and cooled under vacuum
Specific Reaction Conditions:
Index (J) Variable Change
1,2 No catalyst, nitrogen flow
3,4 No catalyst, oxygen flow
5,6 Nominal, 95°
7,8 50 ml/min oxygen flow
9,10 Nominal, 65°
11,12 Medium frit
13,14 Nominal, 50°
15,16 Nominal, 80°
-30-
-------
ASH DATA
BTU DATA
ASH
L0SS
ABS X
2.66
2.91
2.65
2.68
2.54
2.29
2.61
2.35
2.55
2.47
2.72
2.62
1.97
1.96
2.60
2.55
ASH
L0SS
REL X
24.3
26.6
24.2
24.5
23.2
20.9
23.8
21.4
23.3
22.5
24.8
23.9
18.0
17.9
23.7
23.3
ASH
FINAL
X
8*30
8.05
8.31
8.28
8.42
8.67
8.35
8.61
8.41
8.49
8.24
8.34
8.99
9.00
8.36
8.41
ASHiEXP^T)
ASHvCALC)
2.01
2.08
.91
.93
.85
.87
.85
.76
.73
.92
2.00
1.81
2.30
2.05
2.11
1.78
FINAL
BTU
12781
12845
12703
12599
12804
12605
12849
12873
12713
12565
12841
12572
12755
12715
12761
12836
BTU
CHANGE
REL X
-.16
.34
-.77
-1.58
.02
-1.53
.37
.56
-.69
-1.84
.31
-1.79
-.36
-.67
-.31
.27
BTU-ASH
FREE
13906
13942
13826
13708
13952
13765
13992
14055
13856
13697
13964
13690
13960
13923
13889
13988
BTU-ASH
FREE
REL X
97.4
97.6
96.8
96.0
97.7
96.4
98.0
98.4
97.0
J
1
2
3
4
5
6
7
8
9
95.9 10
97.8
95.9
97.8
97.5
97.3
98.0
1
2
3
4
5
6
INITIAL ASH=10.96X* INITIAL BTU=12801> INITIAL ASH FREE BTU=14278
IR0N DATA
FE3
INITIAL
MM
2246
2436
2246
2680
2246
2246
2436
2680
2436
2680
2680
2680
2361
2361
2361
2361
FE2
FINAL
MM
419
413
374
330
334
300
411
342
185
159
344
338
107
78
114
1»7
FE3
USED
X
18.0
16.3
15.9
11.8
14.2
12.8
16.3
12.2
6.9
5.4
12.2
12.0
4.1
2.9
4.3
7.3
FE2
CALC
MM
151
151
159
142
150
134
151
155
159
151
165
165
93
101
132
152
FE2vEXPT>
FE2
2.77
2.74
2.36
2.33
2.22
2.24
2.72
2.21
1 .17
1.05
2.09
2.05
1.15
.77
• b6
I .23
FE2iEXPT> MM FE2/
FE2 \CALC- MM SULFUR
SULFUR) REMOVED
9.22
9.13
7.86
7.75
7.41
7.46
9.08
7.37
3.83
3.70
1.79
1 .63
1.12
1.20
3.61
1.06
3. 89 5.04
3.50 5.26
6.96 10.44
6. 83 10.24
3.84 5.76
2.56 3.84
2.87 4.3U
4. 1O 6.16
j
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
-31-
-------
DATA SUMMARY
ASHiEXPT)
ASHtCALO
2.01
2.08
.91
.93
.85
• 87
.85
.76
.73
.92
2.00
1.81
2.30
2.05
2.11
1.78
BTU-ASH
FREE
%
97.4
97.6
96.8
96.0
97.7
96. A
98.0
98. A
97.0
95.9
97.8
95.9
97.8
97.5
97.3
98.0
MATERIAL MM FE2/
CLOSURE MM SULFUR
% REM0VEO
92.8 3.83
98.1 3.70
96.4 1.79
99.3 1.63
102.2 1.12
91.2 1.20
101.8 3.61
91.4 1.06
104.9 5.84
101.6 5.26
97.2 10.44
98.5 10.24
101.0 5.76
99.1 3.84
89.7 4.30
100.0 6.16
INORGANIC
SULFUR
REM0VEO
X
52.9
59.2
54.8
58.6
52.9
46.5
52.9
52.2
58.0
46.5
57.3
56.7
37.6
43.3
57.3
65.6
PYRITIC
SULFUR
REM0VED
%
66.9
70.7
70. 1
70.1
69.4
61.8
71.3
67.5
74.5
65.0
68.8
73.2
43.3
48.4
62.4
72.6
J
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
ILLINOIS »5 C0AL
INITIAL ASH=10.96*, INITIAL BTU=12801> INITIAL ASH FREE bTU=14278
INITIAL SULFUR=3.48*» INITIAL PYRITIC SULFUR=1.57%
INITIAL SULFATE SULFUR* .05%
SULFUR DATA
FINAL
C0AL
xs
2.65
2.55
2.62
2.56
2.65
2.75
2.65
2.66
2.57
2.75
2.58
2.59
2.89
2.80
2.58
2.45
FINAL
C0AL
X S04
.27
.23
.29
.23
.31
.29
.34
.29
.31
.34
.23
.31
.14
.13
.13
.16
PYRITIC
L0SS
MM S
30.3
30.1
31.7
28.4
30.0
26.8
30.2
30.9
31.7
30.2
32.9
33.0
18.6
20.3
26.5
30.4
TOLUENE
EXTRACT
MM S
8.0
8.4
8.8
7.1
9.9
8.2
10.7
4.6
5.4
8.2
4.2
7.6
1.3
3.5
3.9
7.5
SULFATE
CALC.
MM S04
20.7
21.3
22.1
21.1
20.6
17.0
19.8
24.1
27.6
22.4
27.9
25.0
17.5
16.6
20.2
22.9
SULFATE
SULFUR
2.59
2.54
2.51
2.97
2.08
2.07
1.85
5.23
5.11
2.73
6.65
3.29
13.43
4.76
5.19
3.05
J
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
INITIAL SULFUR=3.48X, INITIAL PYRITIC SULFUR-1.57X
INITIAL SULFATE SULFUR= .05X
-32-
-------
C0AL MnTtRlHL bHLANCE
INITIAL
WEIb«T
ti
88.3
8,1.2
8o*3
79.0
84. A
84.4
82.6
89.3
83.1
90.7
93.4
88.0
83.1
81.3
82.6
81.7
UNAL PYRITt
WEIGHT REM0VEU
u b
78.3
77.4
ttt .5
74.6
82.8
74.4
80.6
78.0
84.2
88.6
86.2
82.9
79.6
77.0
68*7
76.9
.7
.7
.8
.6
.7
.5
.7
.8
.8
.7
.9
.9
.1
.2
.5
.7
C.XCESS
rtSn
b
1.2
1.3
:.i
1.0
1.0
.9
1.0
.9
.9
1.1
1.3
1.0
.9
.8
1*1
.9
T0LUENE
tXTRHCT
b
1.6
2.0
.7
.9
.9
.1
2.0
.9
.4
2.1
2.2
2.0
2.7
1.9
3.0
2.6
T0THL
WEibriT
b
bl .9
ol .7
85.1
78.4
86.3
77.0
84.1
81.6
87.2
92.2
90.7
86.7
83.9
80.6
74.1
81.7
RtC0VtRY
<•
92.8
*»• 1
96.4
99.3
102.2
91 .2
101.8
91 .4
104.9
101.6
97.2
98.5
101.0
99.1
89.7
100.0
J
1
2
3
4
5
6
7
8
9
10
11
12
13
14
IS
16
-33-
-------
APPENDIX " B "
BENCH-SCALE EXPERIMENTATION
-34-
-------
TABLE B-l. PYRITIC SULFUR REMOVAL FROM COAL WITH FERRIC CHLORIDE - FERRIC ION AND COAL WEATHERING EFFECTS
Part I. - Summary of Experimental Conditions.
Exp.
No.
20
21
22
23
24
25
26
27
EXPERIMENTAL PARAMETERS
Type of Coal
Lower Kittanning
Lower Kittanning
Lower Kittanning
(oxidized)
Lower Ki ttanning
(oxidized)
11 lino is No. 5
Illinois No. 5
11 1 inois No. 5
(oxidized)
1 11 inois No. 5
Top
Size
100 mesh
100 mesh
100 mesh
100 mesh
100 mesh
100 mesh
100 mesh
100 mesh
Molarities
and Reagents
Used
2.58M Fed,
+0.10M MCI"
2.58M Fed,
+0.1 OM HC1
2.58M Fed,
+0.10M HC1
2.58M Fed,
+0.1 OM HC1
1.49M Fed,
+•^0. 10M HCT
1.49M Fed,
+-X.0.10M HCT
1.44M Fed,
+-V0.10M HCT
1.44M Fed,
+-V.O. 10M HCT
Reaction
Time
(Hours)
4
4
4
4
4
4
4
4
Temp.
(°C)
106
106
104
104
102
102
104
103
Filtration
Time
(Minutes)
10
10
15
10
10
10
15
15
Washing
No. of
Washes
4
4
6
6
9
6
6
6
Water Temp.
(°C)
96
96
88
93
83
84
80
75
SULFUR RECOVERY
Toluene Reflux
Time
(Minutes)
60
60
60
60
60
60
60
60
Temp.
(°O
84
84
84
84
84
84
83
83
Coal Drying
Temp.
(°C)
105
105
102
103
105
105
105
105
Time
(Hours
14
17
15
14
17
17
15
15
I
OJ
en
-------
TABLE B-l. CONTINUED
Part II. Process Mass Balance
Exp.
No.
20
21
22
23
24
25
26
27
Vig
WEIGHTS IN GRAMS
Coal
in
(Dry)
1066
992
1028
960
898
852
778
759
Processed
Coal
(Dry)
883
920
959
880
871
837
739
728
Toluene
Oisti llation
Residue
9.3
8.5
10.7
10.6
7.3
6.5
5.2
6.1
Coal Recovered
From
Filters3
63.5
57.3
67.9
74. 1
56.7
48.8
48.5
54.8
Sol ids
Out-ln
-110.2
- 6.2
» 9.6
* 4.7
* 37.0
* 40.3
• 14.7
* 29.9
Reagent
Solution
In
7550
7674
7701
7722
7096
7052
7029
7069
Wash
Water
In
3911
4006
5938
5886
10607
5775
5669
5829
Toluene
In
2584
2457
2650
2626
2361
2232
2227
2229
not includ°nfiltrate ofNast^ash '^ "el9ht of dry Pressed coal for all calculations.
Total
Liquid
Charge
14045
14137
16289
16234
20064
15059
14925
15127
Liquid Out
Reactor
Filtrate
7001
6966
7105
7056
6377
6477
6565
6604
Combined
Hashb
3001
3215
3095
3265
3111
2911
2814
2827
Last
Hash
1 143
873
2804
2839
7449
2785
2702
2915
Toluene
Distillate
2252
2230
2317
2406
2137
1991
1980
1951
Drier
Traps
347
369
391
339
548
395
511
465
Total
Liquid
Out
13744
13653
15712
15905
19622
14559
14572
14762
Liquid
Out-ln
-301
-484
-577
-329
-442
-500
-353
-365
Net
Process
Losses
-41 1
-490
-567
-324
-405
-460
-338
-335
I
to
-------
TABLE B-!- CONTINUED
Part III. - Analytical Data for Sulfur and Ion Balances.
Exp.
No.
20
21
22
23
24
25
26
27
ANALYTICAL DATA. WEIGHT PERCENT0 (ON DRV BASIS FOR SOLIDS)
Heat
Content
(BTU/Lb)
12.800
12,789
12,714
12,812
12,268
12.228
12.172
12.084
Ash
16.43
16.06
16.93
15.87
9.51
9.25
9.66
9.30
Total
Sulfur
In Coal
1.91
1.82
2.01
1.58
2.58
2.58
2.48
2.43
'Except for heat content
Sul fur Forms in Coal
Pyritic
1.32
1.23
1.45
0.99
1.01
0.96
0.84
1.12
Sul fate
0.02
0.03
0.02
0.02
0.02
0.03
0.01
0.01
Organic
0.57
0.56
0.54
0.57
1.55
1.59
1.63
1/30
Sulfur as Sul fate In
Reactor
Filtrate
£ V
to 2
41 ft
5 s
Combined
Mash
0.0263
0.0367
0.026f
0.0277
0.0103
0.0070
0.0054
O.D072
Last Mash
0.6 X ID"3
4.5 X IO"3
0.4 X IO"3
0.7 X IO"3
0.2 X IO"3
0.2 X IO"3
0.2 X IO"3
0.2 X IO"3
Sulfur
In Toluene
Residue
82.4
82.3
79.5
79.2
34.5
36.5
35.6
34.6
Total Iron In
Fe In Coal
1.48
1.47
1.66
1.31
1.57
1.54
1.50
1.46
Fe in
Reactor Filtrate
0)
is
tt»
Part IV. - Sulfur Balance and Sulfur Removal Estimates.
V
Exp.
No.
20
21
22
23
24
25.
26
27
CExce
dDfff
and
ethre
ffliff
SULFUR BALANCE. GWS
Coal
44.99
41.86
43.38
40.51
31.70
30.08
27.46
26.79
pt for h
erence b
irocesse
e method
erence b
Sulfur In
Reagents
0
0
0
0
0
0
0
0
at content
'tween sulf
d coal sarap
s of oomput
>tween Sulf
In
44.99
41.86
43.38
40.51
31.70
30.08
27.46
26.79
jr recovf
les.
ng sulfu
ate col 1
Sulfur Out
rn
Processed
Coal
18.08
17.78
20.04
15.07
23.93
22.85
19.53
19.02
red and sul
r removal ar
»cted and th
In
Reactor
Filtrate
12.16
12.30
11.09
10.39
3.38-
3.94
3.05
3.00
Fur removed
e indicated
it addel to
In
Combined
Wash
0.79
1.18
0.82
0.90
0.32
0.20
0.15
0.20
according
.
the reacto
In
Last
Hash
0.01
0.04
0.01
0.02
0.01
0.01
0.01
0.01
to Eschk
r.
In
Toluene
Residue
7.6C
7.00
8.51
8.40
2.52
2.37 .
1.85
2.11
a analyses
Sulfur
Out-lnd
-6.29
-3.56
-2.31
-5.73
-1.54
-0.70
-2.87
-2.45
of feed
Pyritic
Sulfur
In
38.27
35.61
36.91
34.46
14.01
13.29
12.14
11.84
Estimated Pyrite Removal From8
• Total
In
Grams
26.91
24.08
22.74
25.44
7.76
7.22
7.93
7.77
Sul fur
Coal
70.3
67.6
61.6
73. E
55.4
54.3
65.3
65.6
'. Sulfur Forms
Grams
25.78
23.59
22.02
25.02
4.64
4.78
5.53
3.07
t,
67.4
66.2
59.7
72.6
33.1
36.0
45.5
26.0
Produced Sn > SO.,-<:
Grams
20.62
20.51
20.43
19.71
6.23
6.52
5.06
5.32
53.9
57.6
55.4
57.2
44.5
49.1
41.7
44.9
Produced' '
(as sulfur)
12.96
13.52
11.92
11.31
3.72
4.15
3.21
3.21
ulfate
m Holes
404
422
372
353
116
129
100
100
Produced
Grams
7.66
7.00
8.51
8.40
2.52
2.37
1.85
2.11
m Moles
239
218
265
262
79
74
58
66
S0a/Sn
1.69
1.93
1.40
1.35
1.48
1.75
1.73
1.52
-------
TABLE B-l. CONTINUED
Part V. - Iron Mass Balance Data.
CA>
1°
Exp.
NO.
20
21
22
23
24
25
26
27
TOTAL IRON BALANCE, GRAMS
Fe In
From
Coal
33.6
31.2
32.4
30.2
13.7
13.0
11.9
11.6
From
Reagents
833.3
847.0
850.0
852.3
488.7
485.7
475.0
477.7
Total
In
866.9
878.2
882.3
882.5
502.4
498.7
486.9
489.3
Fe Out
In Reactor
Filtrate
771.3
760.2
779.2
757.4
444.1
410.7
453.3
384.0
In Combined
Wash
50.4
68.8
53.4
66.0
42.7
36.0
27.3
26.2
In Last
Wash
.0.1
<0.1
0.2
0.2
0.6
0.3
0.6
0.5
In Processed
Coal
14.0
14.4
17.0
12.5
14.5
13.6
11.8
11.4
Total
Out
835.8
843.4
849.8
836.1
502.0
460.6
493.0
422.2
A Fe
Out-In
-31.1
-34.8
-32.5
-46.4
- 0.4
-38.1
+ 6.1
-67.1
3Assumes that Fe removed from coal was of +2 valence.
]The difference between "Fe+3 used" and Fe+2 produced.
i.Based on "Fe+2 produced".
JBased on "Collected Elemental Sulfur and Sulfate".
kExcess of calculated "theoretical usage".
Exp.
No.
20
21_
22
23
24
25
26
27
FERRIC AND FERROUS ION BALANCE, GRAMS
Fe*3 In
Reagents)
833.3
847.0
850.0
852.3
488.7
485.7
475.0
477.7
Reactor
Filtrate
571.5
554.0
578.3
566.2
132.7
122.9
153.6
133.6
Combined
Wash
35.8
48.1
36.6
48.8
12.7
12.0
10.8
10.2
Total
Out
607.3
602.1
614.9
615.0
145.4
134.9
164.4
143.8
Fe+3 Used
In-Out
226.0
244.9
235.1
237.3
343.3
350.8
310. 6
333.9
Fe*2 In
A Fe
Coal 9
19.5
16.9
15.4
17.8
-0.8
-0.6
0.1
0.2
Reagents
0
0
0
0
0
0
0
0
Total
In
19.5
16.9
15.4
17.8
-0.8
-0. 6
0.1
0.2
Fe+2 Out
Reactor
Filtrate
199.8
206.2
200.9
191.2
311.4
287.8
299.7
250.4
Wash
Filtrate
14.7
20.7
17.0
17.4
30.6
24.3
17.1
16.5
Fe+2
Produced
Out-In
195.0
210.0
202.5
190.8
342.8
312.7
316.7
266.7
Unaccounted
fe^
-31.0
-34.8
-32.6
-46.4
- 0.4
-38.1
+ 6.1
-67.2
Moles
Fe+3
Used1
3.49
3.77
3.62
3.41
6.13
5.60
5.67
4.77
Theoretical
Moles Fe+3
UsedJ
3.07
3.17
2.87
2.73
0.89
0.98
0.76
0.77
Percent
XS Fe+3
Usedk
14
19
26
25
588
473
648
522
-------
TABLE B-l. CONTINUED
Part VI. - Reactor Filtrate Data for Incremental Addition and Withdrawal of Reagent.
Minutes
From
Start
EXPERU
15
30
45
60
90
120
180
210
EXPERIf
15
30
45
60
90
120
ISO
240
EXPERU
15
30
45
60
90
120
180
240
EXPERT
15
30
45
60
90
120
180
240
Lower Kittanning
Solution
Removed
(9)
ENT NO. 20
686
580
687
501
713
685
489
2660
7001
ENT NO. 21
606
465
701
573
677
534
639
2771
6966
:NT NO. 22
787
945
702
890
704
673
505
1899
7105
NT NO. 23
788
560
537
536
497
551
602
2985
7056
S as
Sulfate
(">)
0.2041
0.1852
0.1802
0.1575
0.1596
0.1658
0. 1644
0.1721
0.2133
0.1935
0.1747
0.1532
0.1610
0.1570
0.1750
0 . 1 788
0.1631
0.1473
0.1253
0.1557
0.1512
0.1498
0.1728
0. 1685
0. 1608
0.1586
0.1488
0. 1317
0.1382
0. 1466
0.1383
0.1475
S as
Sulfate
(9)
.40
.07
.24
0.79
.14
.14
0.80
4.58
12.16
1.29
0.90
1.22
0.88
1.09
0.84
1.12
4.95
12.30
1.28
1.39
0.88
1.39
1.06
1.01
0.87
3.20
11.09
1.27
0.89
0.80
0.71
0.69
0.81
0.83
4.40
10.39
Fe in
Solution
(%)
10.877
10.766
10.988
10.953
11.034
1 1 . 009
10.731
11. 177
10.641
10.499
10.899
10.723
10.683
10.682
10.848
11.199
11.220
10.948
10.966
10.855
11.091
1 1 . 1 30
10.978
10.820
11.016
10.953
11.060
10.949
11.037
10.887
10.879
10.414
Fe in
Solution
(9)
74.6
62.4
75.5
54.9
78.7
75.4
52.5
297.3
771.3
64.5
48.8
76.4
61.4
72.3
57.0
69.3
310.3
760.2
88.3
103.5
77.0
96.6
78.1
74.9
55.4
205.5
779.2
86.8
61.3
59.4
58.7
54.9
60.0
65.5
310.9
757.4
Fe*2 in
Solution
(-•)
2.854
2.728
2.655
2.487
2.739
2.613
2.987
3.072
3.208
2.901
2.767
2.475
2.606
2.543
3.015
3.225
2.767
2.592
2.536
2.325
2.706
2.738
3.246
3.280
2.884
2.810
2.618
2.508
2.784
2.745
2.543
2.712
Fe+2 in
Solution
(9)
19.6
15.8
18.2
12.5
19.5
17.9
14.6
81.7
199.8
19.4
13.5
19.4
14.2
17.6
13.6
19.3
89.4
206.4
21.8
24.5
17.8
20.7
19.1
18.4
16.4
62.3
200.9
22.7
15.7
14.1
13.4
13.8
15.1
15.3
81.0
191.2
11 1 inois No. 5
Solution
Removed
(9)
EXPERIHE
526
561
S38
649
685
704
612
2102
6377
EXPERIME
566
688
709
391
547
484
678
2414
6477
EXPERIHE
424
408
538
446
528
648
630
2943
6565
EXPERIMEN
568
498
506
712
671
574
511
2564
6604
S as
Sulfate
C)
IT NO. 24
0.0510
0.0506
0.0404
0.0417
0.0477
0.0422
0.0622
0.0636
n NO. 25
0.0646
0.0510
0.0546
0.0717
0.0702
0.0531
0.0579
0.0629
TT NO. 26
0.0372
0.0280
0.0198
0.0437
0.0409
0.0430
0.0370
0.0593
T NO. 27
0.0576
0.0307
0.0281
0.0265
0.0375
0.0421
0.0530
0.0555
S as
Sul fate
(9)
0.27
0.28
0.22
0.27
0.33
0.30
0.38
1.34
3.38
0.37
0.35
0.39
0.28
0.38
0.26
0.39
1.52
3.94
0.16
0.11
0.11
0.19
0.22
0.28
0.23
1.75
3.05
0.33
0.15
0.14
0.18
0.25
0.24
0.27
1.42
3.00
Fe in
Solution
(".)
6.836
6.939
6.987
7.043
6.819
7.090
6.710
7.052
6.853
6.955
6.993
7. 134
6.767
7.143
6.710
5.365
6.907
6.527
6.946
6.941
6.806
7.027
6.716
6.976
6.942
6.941
6.312
7.085
7.174
7.052
6.790
4.070
Fe in
Solution
(9)
36.0
38.9
37.6
45.7
46.7
49.9
41.1
148.2
444.1
38.8
47.9
49.6
27.9
37.0
34.6
45.5
129.5
410.7
29.3
26.6
37.4
31.0
35.9
45.5
42.3
205.3
453.3
39.4
34.6
31.9
50.4
48.1
40.5
34.7
104.4
384.0
Fe+2 in
Solution
(*)
5.291
4.903
4.357
4.108
4.413
4.605
5.000
5.360
5.409
5.100
4.279
4.096
4.447
4.595
4.931
3.966
5.028
4.342
4.282
4.009
4.136
4.338
4.573
4.792
5.225
4.691
4.267
4.044
4.207
4.276
4.630
2.750
Fe+2 in
Solution
(9)
27.8
27.5
23.4
26.7
30.2
32.4
30.6
112.7
311.4
30.6
35.1
30.3
16.0
24.3
22.2
33.4
95.7
287.8
21.3
17.7
23.0
17.9
21.8
28.1
28.8
141.0
299.7
29.7
23.4
21.6
28.7
28.2
24.5
23.7
70.5
250.4
I
CO
-------
TABLE B-2. PYRITIC SULFUR EXTRACTIONS WITH FERRIC SULFATE - PARAMETRIC INVESTIGATIONS
PART I. - Summary of Experimental Conditions.
Exp
No.
A. L(
28
29
30
31
32
B. IL
33
34
35
36
37
38
C. E)
39
D. TF
40
41
EXPERIMENTAL PARAMETERS
Type of Coal
WER KITTAHNING
Lower
Ki ttanning
Lower
Ki ttanning
Lower
Ki ttanning
Lower
Ki ttanning
Lower
Ki ttanning
LIHOIS NO. 5 CO
1 1 1 inois
No. 5
1 1 1 i no i s
No. 5
1 1 1 inois
No. 5
1 1 1 inois
No. 5
1 1 1 inois
No. 5
Illinois9
No. 5
TRACTIONS WITH
1 1 1 inois
No. 5
ACE-ELEMENT ANA
Lower
Ki ttanning
1 1 1 inois
No. 5
Top Size
Molarities
and
Reagents
Used3
Reac
Time
(Hours)
ion
[Temp.
cc)
1
COAL - CONTINUOUS PYRITE EXTRACTIONS WITH
-14 mesh
- 14 mesh
-1/4 inch
-1/4 inch
-1/4 inch
*L - CONT
-1/4 inch
-1/4 inch
-1/4 inch
-1/4 inch
-1/4 inch
-1/4 inch
;OMKERCIAL
-1/4 inch
.YS1S SAMPL
- 1 4 mesh
-14 mesh
l.OM Fe2(S04)3c
0.5M Fe2(S04)3C
0.5M Fe2(SO.)3
0.5M Fe?(SO.),
C *+ J
0.5M Fe2(S04)3
NUOUS PYRITE EXT
0.5M Fe2(SO.)3
0.5M Fe2(S04)3
0.5M Fe2(S04)3
0.5M Fe?(S04),
0.25M Fe?(SO.),
0.25H Fe?(S04)3
FERRIC SULFATC (
0.5M Fe2(S04)3
E GENERATION EXP
0.25M FeJSOJ.,
0.25M Fe2(S04)3
4
4
4
4
4
RACTIONS
8e
8e
4
4
4
4
FERRI-FL
8
ERIMENTS
12
a
100
99
101
100
100
WITH PU
101
102
100
100
97
101
ooh
101
. MULTI
101
100
aExact Fe and sulfate concentrations are given in the "analytical
reagent solution to furnish 0. 1011* . •'Second extraction ot combined
Fi 1 trat ion
Time
(Minutes)
3URE FERRIC !
10
15
NA
30
15
!E FERPIC SUL
15
15
15
15
22
15
20
BATCH PYRITE
15
15
Hashing
Ho. of
Washes
ULFATE
4
6
4
4
4
FATE
8
8
4
4
4
4
4
EXTRACT!
4
4
Water Temo
95
95
95
95
98
95
95
80
80
90
80
96
ONS WITH PURE
100
100
Sulfur Recover"
Toluene Reflux
Time
(Minutes)
60
60
60
60
60
60
60
60
60
60
60
60
FERRIC SI
60
60
Temp.
85
85
87
85
85
86
86
83
86
81
86
85
LFATE.
83
87
Coal Drying
Temp.
(°C)
137
135
100
100
100
100
100
105
105
105
105
105
105
100
Time
'Hours]
6
6
18
18
8
18
18
18
18
18
18
18
18
2
data" table (Part III) bVacuum drying. cH;>SOd was added to the
processed coals of experiments 30 and 31 . eTwo-stage extractions.
Samples were extracted for four hours, filtered, washed and returned to the reactor for an additional four hour extraction prior to
complete processing. fSecond 4-hour extraction of sample processed during experiment no. 35.9Second 4-hour extraction of processed
sample no. 37.hperriFloc is composed of approximately 5'; insolubles (principally silicates), 90c: ferric sulfate and 5% ferrous sulfate
and chloride.
-------
TABLE B-2. CONTINUED
PART II. - Process Mass Balance.
Exp.
No.
A. L(
28
29
30
31
32
B. I
33
34
35
36
37
38
C. E
39
D. '
40
41
WEIGHTS IN GRAMS
Coal in
Dry
WER KITTAI
1033.8
534.1
577.0
573.0
809.0
LLINOIS NC
483.0
486.0
454.0
444.7
459.0
442.8
XTRACTIONS
462.0
RACE-ELEME
479.0
324.6
Processed
Coal Dry
NING COAL -
994.0
509.3
557.2
551.2
795.0
.5 COAL - (
480.8
475.9
450.3
454.6
451.6
458.2
WITH COMMEI
481.0
NT ANALYSIS
435.0
310.0
Toluene
Dist i 1 lation
Residue
CONTINUOUS PYI
3.3
4.8
3.4
5.8
3.0
ONTINUOUS PYRI1
2.2
1.6
2.3
1.2
2.0
0.8
CIAL FERRIC SUL
1.7
SAMPLE GENERATI
4.4
3.1
Sol ids
Out-In
ITE EXTRj
-36.5
-20.0
-16.4
-16.0
-11.0
E EXTRACT
0
- 8.5
- 1.4
+ 11.1
- 5.4
+ 16.2
'ATE (FER
+ 20.7
ON EXPER
-39.6
-11.5
Reagents
In
CTION WITH
4,095.8
6.939.9
9,148.5
8,828.7
8,511.8
IONS WITH F
26,508.0
25,880.0
13,111.0
12,550.0
12,400.0
12,137.0
RI-FLOC)"
20,835.0
MENTS. MUL1
22,841.0
14,399.0
Water
In
PURE FER1
3876.8
5717.0
3743.2
3677.4
3777. 5
URE FERR!
7928.0
7826.6
4050.3
3831.7
4082.8
3916.3
4064.0
r I -BATCH F
3991.8
4007. 1
Toluene
In
(1C SULFAT
2794.0
1363.0
1261. 7
1268.1
2612.0
C SULFATE
1489.0
1613.0
1288.4
1328.8
1359.9
1350.1
1388.6
YRITE EXTF
1410.0
1225.1
Total
Liquid
Charae
10,766.6
14,019.9
14,153.4
13,774.2
14,901.3
35,925.0
35,319.6
18,449.7
17,710.5
17,842.7
17.403.4
26,287.6
ACTIONS WI
28,242.8
19,631.2
Liouid Out
Reactor
Filtrate
3,759.6
6,729.8
8,963.3
8,707.0
8,224.0
26,092.6
25,429.2
12,840.9
12,280.6
12,148.9
11,984.3
20,349.8
TH PURE FE
22,329.0
14,140.0
Combined
Uashb
3035.6
2870.0
2842.8
2772.5
2862.8
5937.1
6091.6
3086.1
2917.4
3066. 1
2918.1
3083.1
RRIC SULFA'
2843.0
2868.9
Last
Wash
908.1
2795.8
915.6
888.3
947.9
1929.2
1853.6
1014.0
969.5
999.2
967.4
992.0
E
983.3
993.2
Toluene
Distillate
2702.8
1293.4
1216. 3
1203.0
2470.1
1400.9
1525.0
1198.2
1222.0
1270.6
1250.9
1300.9
1357.2
1181.7
Drier
Traps
207.8
98.0
54.0
77.6
187.0
124.8
146.9
131.3
134.8
128.6
129.0
116.5
18.9
54.7
Total
Liquid
Out
10,613.9
13,787.0
13,992.0
13,648.4
14,691.8
35,484.6
35,046.3
18,270.5
17,524.3
17,613.4
17,249.7
25,842.3
27,531.4
19,238.5
Liquid
Out-In
-152.7
-232.9
-161.4
-125.8
-209.5
-440.4
-273.3
-179.2
-186.2
-229.3
-153.7
-445.3
-711.4
-392.7
Net
Process
Losses
-189.2
-252.9
-177.8
-141.8
-220.5
-440.4
-281.8
-180.6
-175.1
-234.7
-137.5
-424.6
-751.0
-404.2
-------
TABLE B-2. CONTINUED
PARI III. - Analytical Data for Sulfur and Ion Balances.
Eip.
NO.
A. L
28
29
30
31
32
a. i
33
34
35
36
37
38
C. El
39
0. TH
40
4]
ANALYTICAL DATA. WEIGHT PERCENT1 {ON O.RY BASIS FT.R SOLIDS)
Content
(BTU/Lb)
WER KITTAJ
12.995
12.718
12.820
12.636
12.916
LINOIS NO
12.676
12.616
12,738
12.711
Asn
N1NC COA.
15.85
17.54
16.98
17.79
16.47
5 COAL
8.48
8.70
8.67
9.43
Pro
Total
Sulfur
- com
2.71
2.58
2.81
3.44
2.25
• CONTINU
3.28
3.33
3.28
3.36
cessed Coal
Pyri-.ic
•JUOUS PrR
1.97
1.9!
2.26
2.70
1. 74
OUS PfRITE
0.81
0.89
0.85
1.16
Sulfate
IE EXTRACT
0.12
0.08
0.03
0.04
0.07
EIIRACTK
0.46
0.51
0.44
0.44
Organic
IONS WITH
0.62
0.59
0.5?
o.;o
0.44
NS WITH PI
2.01
1.93
1.99
1.76-
RACTIONS w TH COHWRCIAL FERRIC SILFATE (FERRI-FLOC)
12.016 III. 12
1
CE-ELEHENT ANALYSI
13,320
12,511
13.92
9.66
3.91
S SWPIE C
1.66
2.82
1.50
ESEMTIOH
0.95
0.67
UNTREATED COALS (11 Sanole Averages)
Illinois 12.700
No. 5 ^73
Lo,er 12.319
Kittann ng l 109
11.34
JJ.3I
19.72
•0.60
3.53
•0.12
4.22
1.56
^0.12
3.59
•0.17
0.04
DPE»IHENT
0.17
0.32
0.07
^0.02
0.06
^0.03
2.37
•>. MULII-
0.54
1.83
1.96
^0.17
0.67
^0.12
Sulf
PURE FERRIC
RE. FERRIC S
2
i
— o
o >
w ^ s.
* s 5
S '~ °
1 ^
X I ?
BATCH PYPI T
r as Sulf a
i fjonbined 1
SULFATE
0.765
0.223
0.177
0.186
0.359
ILFATE
0.228
0.341
NA
NA
NA
NA
NA
E E
1
S
(3 sarplc avg)
3.15 1 0.10
(3 sarple avg)
fe In
0.844
0.210
0.236
0.210
0.385
0.232
1.354
1.241
0.284
1.094
0.067
0.250
3.052
3.052
Fe in
0.002
0.000
0.001
0.001
0.001
0.022
0.027
0.022
0.019
0.010
0.014
0.030
0.002
O.OOS
Fe''
Reactor
Filtrate
M
•0
°
1
S |
1 ,§
C u
L. S
O L.
- 1
S
y.
Hasn
0.376
0.062
0.036
0.039
0.071
0.035
0.056
0.046
0.040
0.027
0.021
0.020
0.012
0.014
REAGENT FEED WEIGHT PERCENT
Total Iron
9.00
4.36
4.83
4.83
4.62
5.04
5.04
5.01
4.91
2.56
2.81
5.02
2.83
2.84
Fe'3
9.00
4.36
4.83
4.83
4.62
5.04
5.04
5.01
4.91
2.56
2.81
4.64
2.83
2.84
Fe'2
0
0
0
0
0
0
0
0
0
0
0
0.38
0
0
Sulfate as Sulfur
8.50
4.12
4.51
4.51
4.27
4.47
4.47
4.38
4.45
2.26
2.42
4.36
2.58
2.65
]E»cept neat content.
I
-pi
ro
-------
TABLE B-2. CONTINUED
PART IV. - Sulfur Balance and Sulfur Removal Estimates.
Exp.
No.
A. L
28
29
30
31
32
B. I
33
34
35
36
37
38
C. E
39
D. T
40
SULFUR BALANCE, GRAMS
SM 1 fur In
From
Coal
DWER KIT1
43.63
22.54
24.35
24.18
25.27
48.53
LLINOIS r
17.05
17. 16
16.03
NA
16.20
NA
XTRACTIOI.
16.31
RACE ELEM
20.21
11.46
From
Reagents
ANNING COAL
348.1
285.9
412.6
398.2
363.5
D. 5 COAL -
1184.9
1156.8
574.3
558.5
280.2
293.7
S WITH COMM
908.4
Total
In
- CON-
391 .8
308 .5
436.9
422.4
388.8
- CONTR
1202.0
1174.0
590.3
296.4
ERCIAL F
924.7
Sulfur Out
In
Processed
Coal
INUOUS PYR11
26.94
13.14
15.66
18.96
17.89
24.51
UOUS PYRITE
15.77
15.85
NA
14.91
NA
15.40
ERRIC SULFAT
18.81
In
Reactor
Filtrate
E EXTRACTIC
318.1
286.9
401.2
385.0
356.2
EXTRACTIONS
1122.5
1117.9
NA
NA
NA
NA
E (FERRI-FL
NA
ENT ANALYSIS SAMPLE GENERATION EXPERIMENT!
589.3 1609.5 1 7.22 I 618.3
381.6 1393.1 1 8.74 1 NA
In
Combined
Wash
In
Last
Wash
NS WITH PURE FERR
23.22
6.40
5.03
5.16
10.28
UITH PURE
13.54
20.77
NA
NA
NA
NA
OC)
NA
. MULTI-B^
NA
NA
0.04
0.03
0.02
0.02
0.03
FERRIC
0.69
0.63
0.31
NA
0.17
NA
NA
TCH PYF
NA
NA
In
Toluene
Residue
C SULFATE
2.23
3.92
2.90
4.62
2.33
SULFATE
0.73
0.57
0.63
0.27
0.58
0.22
0.53
ITE EXTRAC
3.77
0.69
Sulfur
Out-Inj
-21.3
+ 1.9
-12.2
- 8.6
- 2.1
-48.7
-18.3
...
---
TIONS WITH
Pyrite
In
37.11
19.17
20.71
20.57
20.05
41 .28
7.53
7.58
7.08
NA
7.16
NA
7.21
PURE FER
17.20
5.06
Estimated Pyrite Removal From*
A Total Sulfur
In Coal
Grams
-16.69
- 9.40
- 8.69
- 5.22
- 7.38
-24.02
- 1.28
- 1.31
- 1.12m
- 0.80m
+ 2.5n
RIC SULF/!
-12.99
-2.72
%
45.0
49.0
42.0
25.4
36.8
58.2
17.0
17.3
15. 8m
11. 2m
(34.7)n
TE
75.6
53.6
A Sulfur Forms
In Coal
Grams
-17.53
- 9.45
- 8.12
- 5.69
- 6.22
-22.33
- 3.64
- 3.35
- 3.22
- 1.84m
+ 0.05n
-13.06
-2.99
%
47.2
49.3
39.2
27.6
31.0
54.1
48.3
44. 1
45. 4m
25. 8m
0.0
76.0
59.0
JThe amount of sulfur input (as sulfate) is too large in comparison to the sulfur removed from the processed coal; thus, the
observed sulfur imbalance (out-in) is due to normal uncertainty in analysis and not to missing sul fur. Subsequent to
Experiment No. 34 sulfur analysis of extracts was discontinued except for spot checks on last wash.
kjwo methods of computing sulfur removal are indicated.
'The processed coal from Experiments 30 and 31 served as starting coal for Experiment 32. This row of data indicate pyrite
removal during double processing (8 hours).
mDouble extraction pyritic sulfur removal (8 hours total). The low sulfur removals computed from total sulfur analyses are due to recidual
sulfate on processed coal (inefficient washing), "sulfur increase!!
CO
I
-------
TABLE B-2. CONTINUED
PART V. - Iron Mass Balance Data
Exp.
No.
A. L
28
29
30
31
32
B. I
33
34
35}
36'
38'
C. E
39
0. T
40
41
TOTAL IRON BALANCE. GRAMS
Fe In
From
Coal
MR KI
32.6
16.8
18.2
18.0
18.4
.LINOIS
7.4
7.4
6.9
7.0
XTRACTI
7.1
RACE EL
15.1
5.0
From
Reagents
TT ANN ING CC
368.6
302.6
441.9
426.4
393.2
NO. 5 COAL
1336.0
1304.4
1273.1
659.7
)NS WITH CC
1045.9
;MENT ANALY
646.4
408.9
Total
In
AL - CC
401.2
319.4
460.0
444.5
411.6
- CONT
1343.4
1311.8
1280.0
666.7
MMERCIAL
1053.0
SIS SAMP
661.5
413.9
Fe Out
In "Reactor
Filtrate
4TINUOUS PYRI
358.1
309.4
438.1
425.4
397.2
INUOUS PYRITE
1288.9
1278.6
1269.6
658.2
FERRIC SULFA
1047.4
LE GENERATION
662.7
407.2
In Combined
Wash
'E EXTRACTIONS
25.6
6.0
6.7
5.8
11.0
EXTRACTIONS W
13.8
21.6
15.7
4.8
TE (FERRI-FLOC
7.7
EXPERIMENTS. ^
1.5
1.5
In Last
Wash
WITH PURE
••0.1
<0.1
<0.1
<0.1
,0.1
TH PURE F
0.4
0.5
0.4
0.2
0.3
JLTI-BATO
-.0.1
'0.1
In Processsd
Coal
FERRIC SULFATE
18.1
9.4
11.4
13.8
12.6
RRIC SULFATE
4.5
4.7
4.3
6.2
12.7
EXTRACTIONS W
5.5
2.3
Total
Out
401.8
324.9
456.2
445.0
420.8
1307.6
1305.4
1290.0
669.4
1068.1
ITH£URL
669.7
411.0
i Fe
Out-In
+0.6
+ 5.5
-3.9
+0.5
+9.2
-35.7
-6.4
+10.0
+2.7
+ 15.1
Fe2(S04);
+8.3
'-2.9
Exp.
No.
A.
28
29
30
31
32
B.
33
34
35 4 36
37 & 38
C.
39
0.
40
41
FERRIC AND FERROUS ION BALANCE, GRAMS
Fe+3 In
(Reagents)
.OWER KITTAN
368.6
302.6
441.9
426.4
393.2
ILLINOIS NO.
1336.0
1304.4
1273.1
658.5
EXTRACTIONS
966.7
TRACE ELEMEN
646.4
408.9
Fe+3 Out
Reactor
Filtrate
<1NG- COAL -
206.0
221.2
369.1
350.3
335.7
Combined
Wash
CONTINUOU
14.2
4.2
5.7
4.7
9.0
Total
Out
S PYRITE
220.2
225.4
374.8
355.1
344.7
Fe+3 Used
In-Out
EXTRACTIONS
148.4
77.2
67.0
71.4
48.5
Fe+Z In
A Fe
Coal
WITH PI
14.5
7.4
6.8
4.2
5.8
5 COAL - CONTINUOUS PYRITE EXTRACTIONS WITH PURE
1184.8
1176.1
1160.6
566.5
WITH COMfCK
888.4
T ANALYSIS
530.1
304.8
11.7
18.2
13.1
3.4
:iAL FERRI
7.1
SAMPLE GEN
1.1
1.1
1196.5
1194.2
1173.7
569.9
: SULFATE
895.5
[RATION E
531.2
305.9
139.5
110. 1
99.4
88.6
(FERRI-aOC
71.3
XPERIMENTS.
115.2
103.0
2.9
2.7
2.7
0.8
)
-5.6
MULTI-B
9.6
2.7
Reagents
RE_ FERRIC
0
0
0
0
0
Fe Out
Total
In
SULFATE
14.5
7.4.
6.8
4.2
5.8
Reactor
Filtrate
152.1
88.3
68.9
75.1
61.5
FERRIC SULFATE
0
0
0
0
79.2
ftTCH PYRITE
0
0
2.9
2.7
2.7
0.8
73.5
EXTRACT
9.6
2.7
104.2
102.6
109.0
91.7
159.0
ION WITH PU
132.7
102.4
Wash
Filtrate
11.4
1.8
1.0
1.1
2.0
2.5
3.9
2.6
1.4
0.9
RE FERRIC S
0.4
0.5
Fe+Z
Produced
Out-In
149.0
82.6
63.2
71.9
57.7
103.8
103.7
108.9
92.3
86.4
ULFATE
123.5
100.1
Unaccounted
Fe+3
+0.6
+5.4
-3.8
+0.5
+9.2
-35.7
-6.4
+9.5
+3.7
+ 15.1
+8.3
-2.9
-44-
-------
PART VI - Spent Reagent Conpoiition as a Function of Time.
IABLE. 6-?. CONTINUED
Time
Interval
(Rinutes)
A. IOJE
Withdrawn
Solution
(grams)
B M II ANN ING
EXPERIMENT .'iO. 28
0-240
EHPER1ME
0-240
2409
*
0-150
150-740
7405
EKPER1HE
0-150
150-240
2409
E>PE«ISE
0-30
10-60
60-90
90-120
120-180
181-240
2409
401.6
3759.6
I no. 29
3201.8
3528.0
6729.8
'
3779.0
1374.0
3761.4
8922.4
40. 9r
H963.3
T 110. 31
3563.0
1177.0
3908.3
d648. 1
59. 7r
1 tO. 32
746.0
679.0
634.0
630.0
725.0
882.0
3928.0
8224.0
EIPER1MEH1 '10. 40
120s
360
480s
600s
720s
1700
374
3642
3745
3804
22.329
Sulfat
COAL
8. 53L
4. 128
4.387
4.408
4.326
4.647
0.000
4.485
4.543
4.395
O.OO'l
4.273
4.232
4.440
4.5tFi
4.601
4.475
4.239
2.820
2.728
2.792
2.769
e as 5
34.28
118.06
132.17
B4.77
286.94
166.5."
59.44
175.16
401.18
159.80
53.47
171.77
385.04
31.50
28.74
28.15
78.46
33.36
19.4;
166.51
356.19
104.34
99.15
104.56
105.13
618.78
total
(w/o)
9.473
4.56r:
4.*r'
4.934
4.902
4.888
0.000
4.942
4.934
4.S93
O.uuo
4.712
4.851
4.832
4.943
5.011
4.380
4.787
3.074
7.936
2.894
2.915
18.04
358.09
146. J6
163.17
109 . 4 J
186.46
67.15
184.20
418.06
176. J»
58.07
191.21
425. If
15.15
37.94
30.63
31.14
36.47
43.04
In7 84
397.21
113.74
IG6.91
118.18
1 10.89
662.74
Ferrou
2.738
1.355
1.27?
0.810
0.770
0.736
0.100
0. 'l'7
O.H6H
0.83?
•i.oor
0.577
0.718
0.704
0.785
0.842
1.800
0.766
1.564
0.277
0.18?
0.142
s Ion
11.00
152.10
43.38
44.88
S8.2f
30.61
11. SF:
2_7_.J4
68.93
12.32
10.22
32.5?
75. If
3.93
4.88
4.46
4.95
6.11
7.06
30.09
61.47
57.87
10.09
f.8?
5.40
112.68
Sinutes)
a. nine
(gra».s)
IS '11. 5 C0»
L
E'»EP|ME'M NO. 13
'All'l'-i
in. fin
fO- i"
90- 1 20
12']. IKO
2119
tion _(_4_Hou£
Q21
U3f
Tin
.'117
3968.5
''
4.W5
!.J"D
4.19')
l.TBn
4
..no-.
ifld E ' * ^action (4 "ours '
1-31
3,i-n
fl-01
•i i-121
241?
t'IPIWII
1'IZ
101,9
1111
1125
4104
13.037 „
'•]. 1
13.111.1
ilO. 34
i-30
fl-90
Q0-12n
120-181
lnn-24r
2419
1765
l?ff
21£5
12.85f.-5
i."f l
4.370
4^
4. JHH
<1 . 1H
o.nn'1
4.fJ4
J . 3.">-
?nd Extraction (4 Hours,
0-30
90- i::
171- in
1H1-241
2409
11 W.
1891
7149
3630.3
12.525.3
47. 4r
12.572.7
4.4?!
3.°52
!.46f
4.79»
4.444
l.r.11
41.4'.
55.57
4 1 . 95
nn j 7
If2.51
f4 41
44.10
4' ., t
178 97
Sff. 1 '
31. 15
5f "0
53.31
'75. 'f
57.3'
fta. j
-------
TABLE B-3. EXPERIMENTAL CONDITIONS FOR EXPERIMENTS 42 THROUGH 64
Exp.
No.
Exp.
No.
42 Illinois No.5, -1/4 inch coal 48
Commercial ferric sulfate leach solution (Ferri-Floc)
5.K Fe, 8% as Fe+2
Continuous addition and withdrawal of solution
Reflux temperature (102°C)
43 Lower Kittannning, -1/4 inch coal 49
Commercial ferric sulfate leach solution (Ferri-Floc)
5.1- Fe, 8% as Fe+2
Continuous addition and withdrawal of solution
Reflux temperature (102°C)
44 Lower Kittanning, -1/4 inch coal
Ferric sulfate leach solution
" 4.8r: Fe, no Fe+2
»
T> Continuous addition and withdrawal of solution
Reflux temperature (102°C)
45 Lower Kittanning, -14 mesh coal
Ferric sulfate leach solution
4.8\ Fe, no Fe+2
Continuous addition and withdrawal of solution
Reflux temperature (102°C)
46 Lower Kittanning, -200 mesh coal
Ferric sulfate leach solution
4.7, Fe, no Fe+2
Continuous addition and withdrawal of solution
Reflux temperature (102°C)
47 Lower Kittanning, -100 mesh coal
Ferric sulfate leach solution
5.6? Fe, 44% as Fe+2
Single batch, filtered samples
Reflux temperature (102°C)
50
51
Lower Kittanning, -100 mesh coal
Ferric sulfate leach solution
4.8," Fe, 14% as Pe*2
Single batch, filtered samples
Reflux temperature (102°C)
Lower Kittanning, -100 mesh coal
Ferric sulfate leach solution
Initial reactor charge 5.1% iron, 52% Fe*
Feed 20 to 80 minutes 4.95S iron, 402 Fe*2
Feed 80 to 140 minutes 4.6* iron, 30% Fe
+ 2
+2
+2
Feed 140 to 200 minutes 4.6% iron, 22* Fe
Feed 200 to 410 minutes 4.7% iron, 11% Fe''
Feed 423 to 750 minutes 4.9% iron, 11% Fe*2
Continuous addition and withdrawal of solution
Reflux temperature (102°C)
Lower Kittanning, -100 mesh coal
Ferric sulfate leach solution
4.6;: Fe, no Fe+2
Continuous addition and withdrawal of solution
Reflux temperature (102°C)
Lower Kittanning, -100 mesh coal
Ferric sulfate leach solution
4.8r' Fe, no Fe+2
Continuous addition and withdrawal of solution
Average reaction temperature - 85°C
Exp.
No.
52 Lower Kittanning, -100 mesh coal
Ferric sulfate leach solution
4.7% Fe, no Fe*2
Continuous addition and withdrawal of solution
Average reaction temperature - 70°C
53 Lower Kittanning, -100 mesh coal
Ferric sulfate leach solution
Batch 1 (0 to 62 min) 4.9% iron, 51% Fe+2
Batch 2 (63 to 146 min) 5.0% iron, 42% Fe*2
Batch 3 (147 to 227 min) 4.9% iron, 30% Fe*2
Batch 4 (228 to 308 min) 5.0% iron, 20% Fe*2
Batch 5 (309 to 393 min) 4.8% iron, 10% Fe+2
Batch 6 (394 to 464 min) same
Batch 7 (465 to 545 min) same
Batch 8 (546 to 616 min) same
Batch 9 (617 to 697 min) 4.8% iron, 9% Fe*2
Batch 10 (698 to 768 min) same
Batch 11 (769 to 909 min) same
Solution added at start, withdrawn at end of each
batch
Batches 1 through 10, 1 hour at reflux (102°C);
remaining time 85° to 102° during warm-up
Batch 11, 2 hours at reflux (102°C); remainder
at 85° to 102° during warm-up
54 Lower Kittanning, -100 mesh coal
Ferric sulfate leach solution
3.8% Fe, no Fe*2
Continuous addition and withdrawal for 6 hours
Batch mode last 6 hours
Reflux temperature (102°C)
-------
TABLE B-3. CONTINUED
Exp.
No.
55
Lower Kittanning, -100 mesh coal
Ferric sulfate leach solution
5.0* Fe, no Fe*2
Continuous addition and withdrawal for 6 hours
4 times rate, first hour
2 times rate, second hour
Normal rate, third through sixth hour
Batch mode, last six hours
Reflux temperature (102°C)
56 Lower Kittanning, -100 mesh coal
Ferric sulfate leach solution
6.7% Fe. no Fe*2
Continuous addition and withdrawal for 6 hours
4 times rate, first hour
2 times rate, second hour
Normal rate, third through sixth hour
Batch mode, last six hours
Reflux temperature (102°C)
57 Lower Kittanning, -100 mesh coal
Ferric sulfate leach solution
7.9% Fe. no Fe*2
Continuous addition and withdrawal for 6 hours
4 times rate, first hour
2 times rate, second hour
Normal rate, third through sixth hour
Batch mode, last six hours
Reflux temperature (102°C)
58 Lower Kittanning, -100 mesh coal
Ferric sulfate leach solution
10.8% Fe, no Fe*2
Continuous addition and withdrawal for 6 hours
Batch mode last 6 hours
Reflux temperature (102°C)
Exp.
No.
59
Lower Kittanning, -100 mesh coal
Ferric sulfate leach solution
8.5% Fe, 39.8% as Fe+2 ( r°°m temperature
saturated with Fe*2)
Continuous addition and withdrawal for 6 hours
Batch mode last 6 hours
Reflux temperature (1026C)
Exp.
No.
64
Lower Kittanning, -100 mesh coal
Ferric sulfate leach solution
Slurry circulated under 150 psi 02 pressure
5.1% Fe. no Fe*2
Batch mode with regeneration for 2 hours
Temperature 130°C
60 Lower Kittanning, -100 mesh coal
Ferric sulfate leach solution
5.2% Fe, no Fe*2
5 times quantity of leach solution
Batch mode for 6 hours
Reflux temperature (95-102°C)
61 Lower Kittanning, -1/4 inch +10 mesh coal
Ferric sulfate leach solution
Circulated under 150 psi Nj pressure
5.1% Fe, no Fe*2
Batch mode for 4 hours
Temoerature 120°C
6? Lower Kittanning, -1/4 inch +10 mesh coal
Ferric sulfate leach solution
Circulated under 150 psi N^ pressure
5.0% Fe, no Fe*2
Batch mode for 4 hours
Temperature 140°C
63 Lower Kittanning, -100 mesh coal
Ferric sulfate leach solution
Slurry circulated under 150 psi II, pressure
4.9% Fe.no Fe*2
Batch mode for 4 hours
Temperature 130°C
-------
TABLE B-4. PYRITIC SULFUR EXTRACTIONS WITH COMMERCIAL FERRIC SULFATE
SUMMARY OF REACTION DATA FOR S04/S= 1.500 ILLINOIS NO.5, -1/4 INCH (FERRI-FLOC). EXP.N0.42 5.1% Fe, 8% as Fe
MIN
FROM
START
30
60
90
120
Id"
240
FROM F
i
•c*
00
' SUMMARY
MIN
FROM
START
30
60
90
120
180
240
FROM
FE+2/FE
WT. RATIO
.1379
.1491
.1530
.1540
.1460
.1321
COAL w'T.
f-KfcE OF.
S(ELEM)
413.99
411.67
409.73
H07.81
405.12
403.60
INAL COAL ANALYSIS
OF REACTION
FE+2/fc
WT. RATIO
.1750
.1881
.1S29
.1929
. 1869
.185C
FINAL COAL
DATA FOR
CO^L *T
FW,;2 C'F.
S(ELEM)
575.73
574.17
573.09
572.17
570.94
569.37
ANALYSIS
PY:-4 S
WT-PCT
.060
.061
.Ool
.061
.061
.U61
.320
9.973
9.629
9.206
8.800
8.559
9.690
5.1% Fe,
P-HY-STEP
ASH H
rfT-PCT
19.585
19.473
19.394
19.327
19.237
19.122
19. COO
CONTENT
BTU/LB
12826
12889
12943
12997
13073
13110
12605
8Xas Fe+2
T Cu.ViTHNT
BTU/LB
12357
12381
12398
12415
12432
12456
12384
-------
TABLE B-5. PARTICLE SIZE EFFECT ON PYRITIC SULFUR REMOVAL RATES
CONTINUOUS REAGENT EXCHANGE
SUMMARY OF REACTION DATA FOR S04/S= 1.500 LOWER KITTANNING, -1/4 INCH. EXP.N0.44 4.8% Fe, no Fe
+2
\o
I
H IN
FROM
START
15
30
45
60
75
90
105
120
135
150
165
180
195
210
225
240
255
270
285
300
315
330
345
360
FROM
F E «• 2 / F t
WT. RATIO
.1740
.1990
.2090
.2154
. 2 2 2 9
.2SOO
.2358
.2421
.2490
.2510
.2510
.2440
.2371
.2321
.2271
.2229
.2200
.2171
.2140
.2110
.2090
.2071
.2040
".2021
FINAL COAL
CPAL wT.
FkEr OF.
S(ELEM)
1055.1 I
1052.91
1051.28
104?. 7 9
1043.48
1747.^4
1046. 11
1044.9 7
1043.83
1042.94
1041.65
1040,63
1039.71
1033.79
1037. 96
1037.08
1036.16
1035^31
1034.50
1033.72
1032. 75
1032. 10
1031.51 -
1030.d3
ANALYS IS
PYPITE CUMULATIVE
kcr'-CVtD
PCT OF INIT
11.54
14.40
16.52
18.45
20. 15
21.76
?3.22
24.71
26. 18
27.35
29.02
30.35
31.54
32.73
33.82
34.95
36. 14
37.26
38.30
39.32
4C.58
41.42
42. Id
43.00
43.o2
F.AFE
PCT/HR
4b. 15
28.31
22.03
18.45
16.12
14. Dl
13.27
12. J6
11. S4
10.94
10.55
10. 12
9.71
9.35
9.02
8.74
8.50
6.28
8.06
7.36
7.73
7.53
7.34
7.17
CALCULATED C
TOTAL S
WT-PCT
3.939
3.843
3.772
3.7C7
3.o50
3.^95
3.540
3.495
3.445
3.406
3.348
3.303
3.262
3.221
3. 184
3.145
3.104
3.065
3.029
2.994
2.9b"!
2.921
2.394 -
2. do5
3.000
PYR. S
WT-PCT
3.203
3.105
3.033
2.967
2.909
2.854
2.803
2.752
2.701
2.661
2.603
2.557
2.515
2.474
2.436
2. 396
2.354
2.315
2.278
2.242
2 . 1 3fc
2.168
2.1^1
2.112
2.090
OAL ANALYSES STdP-BY-STEP
LJH L> • ^
btf T •• P f" T
.676
.677
.678
.679
.680
.6H1
.661
.682
.083
.634
.684
.685
.686
.686
.687
.687
.688
.639
.689
.690
.o^O
.691
.691
.692
.690
SO 4 S
WT-PCT
.061
.061
.061
.061
.061
.061
.061
.061
.061
.061
.061
.061
.061
.061
.062
.062
.062
.062
.062
.062
.C62
.062
.062
.062
.220
ASH
WT-PCT
19.477
19.373
19.296
19.226
19. 164
19.105
19.J51
16.996
16.942
16.699
16.837
16.788
18.743
18.699
16.659
18.016
18.572
18.530
13.491
13.453
18.405
18.373
18. 344
18.313
13.290
HT COi\TE
ttTU/LB
12372
12392
12407
12421
12433
12444
12^55
12465
12476
12434
12496
12506
12514
12523
12531
12539
12548
12556
12563
12571
12580
12586
12592
12598
12126
-------
TABLE B-5. Continued
SUMMARY OF REACTION DATA FOR S04/S= 1.500 LOWER KITTANNING, -14 MESH. EXP.N0.45 4.8% Fe, no Fe
+2
MIN
FRUM
START
15
30
45
60
75
90
105
120
135
150
165
2b. rt 7
23.40
21.40
19.83
18.56
17.46
16.56
15.70
15.01
14.56
13.98
13.35
12.82
12.39
11.97
11.53
11.13
10.76
10.47
10.27
CAL
TUTAL S
WT-PCT
3.77U
3.596
3.447
3.344
J.247
3.152
3.C71
2.995
2.923
2.857
2.791
2.7J6
2.677
2.600
2.54V
2.514
2.476
2.432
2.392
2.363
2.336
2.309
2.272
2.223
2.200
CULATt'O
PYR. S
WT-PCT
3.029
2.853
2.7JO
2.596
2.497
2.400
2.318
2.240
2.166
2.099
2.C33
1.976
1.916
1.838
1.7b6
1.750
1.712
1.666
1.626
1.596
1 .568
1.541
1.504
1.453
I. 300
COAL ANALYSES ST
UKG. S
WT-PCT
.680
.683
.635
.687
.689
.690
.692
.693
.694
.b95
.696
.697
.698
.700
.701
.701
.702
.703
.703
.704
.704
.705
.'7C5
. 706
. 760
SfJt S
WT-PCT
.061
.061
.061
.062
.062
.062
.062
.062
.062
.062
.062
.062
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
. 140
EP-bY-ST
ASH
WT-PCT
19.136
18.898
1 a. 694
18.553
18.419
16.290
18. 179
18.074
17.975
17.885
17.795
17.720
17.639
17.534
17.463
17.415
17.3o4
17.302
17.249
17.209
17. 171
17.134
17.084
17.016
16.610
EP
hT CJ\TFNT
BTU/LB
12432
12476
12514
1254C
12565
12539
12610
12629
12648
12665
12681
12695
12710
1273C
12743
12752
12762
12773
12783
12790
12797
12804
12614
12826
12836
-------
TABLE B-5. Continued
SUMMARY OF REACTION DATA FOR S04/S= 1.500 LOWER KITTANNING, -200 MESH. EXP.N0.46 4.7% Fe, no Fe+2
MIN
FKUM
START
10
25
40
55
70
85
100
115
130
145
160
175
190
205
220
01 235
T 250
265
280
295
310
325
340
355
370
371
381
391
406
421
436
451
466
481
496
311
526
F<>2/F.-
wT. RAT ID
. 1549
.2320
.3626
. 3C 7?
.3224
.3320
.3050
.2789
.24o4
.2291
.2108
.2026
.1903
.1615
.1473
.1375
.1305
.1219
.1133
. 1060
.0*85
.0853
.0767
.0681
.0683
.0683
. 03 5 7
.0944
.0999
.0674
.0634
.0766
.0640
.Oo76
.0650
.0582
.0544
C U a L \n T .
Fl- f-- OF.
S(ELEM)
755.93
749.26
740.23
7 46.38
7 3 .1 . 2 4
72S.28
725.14
721 .70
718.93
715.32
..7.11.43
707.14
7^2.63
698.90
695.36
691.53
687.50
683.73
680.07
676.21
672.56
•>f>9.22
665.62
6 6 2. "12
658.62
658.62
643. 71
641.68
637. 76
635.10
63.1.67
623.44
625. ->4
621. d5
6 i .-1 . •» 4
615.38
611.60
PV3I T-:
R-zMUVirO
PCT UF INI
12.69
21.02
34.80
33.97
34.36
44.49
45.86
47.04
47.40
49.36
50.84
52.98
55.61
56.56
57.33
58.53
60. 34
61.67
62.82
64.53
65.80
66.20
66.96
67.94
69.01
69.01
70.43
71.14
72.85
72.94
73. 11
74.39
74.37
75. bJ
76. 5. i
76.93
77.51
CUMULATI Vf:
RATE
T PCT/HR
76.14
50.45
52.irl
37. C6
3 3 . 7 i
31.40
27.51
24.54
21.88
20.43
19.07
18.16
17.56
16.55
15.63
14.94
14.48
13.96
13.46
13.13
12.74
12.22
11.82
11.48
11.19
11. 16
11. J9
10.92
10.77
L0.39
10. 15
9.90
9.53
9.46
9.26
9.03
3.H4
CAL
GT&L 5
iT-PCT
3.696
3.613
3. 140
3.169
2.961
c. • b C 2
2.754
2.712
2.699
2.630
2.578
2.502
2.408
2.374
2.347
2.304
2.239
2.191
2.150
2.088
2.043
2.028
2.001
1.965
1.926
1.926
1.H75
1.H49
I. 767
1.7o4
1. 753
1.731
1. 732
I . b 7 9
1 .-.Vjl
1.038
1.617
C'JLATEO
PYk. S
wT-PCT
3. 160
2.873
2.393
2.423
2 . 2 3 .}
2 . r> 5 0
2.C02
1.960
1 .947
1.876
1.823
1.747
1.652
1.617
I. 590
1.546
1.480
1.432
1.390
1.327
1.281
1.267
1.239
1.202
I. 163
1.163
I. Ill
1 .OU5
1.022
1.019
.988
.965
.9 oo
. •'} I 3
.hk'4
.870
.«49
COAL AN'ALYSFS STEP-BY-STEP
ORG. S
WT-PCT
.675
.679
.635
.685
.687
.689
.69C
.691
.691
.692
.692
.693
.694
.695
.695
.696
.697
.697
.698
.698
.699
.699
.700
.700
.701
.701
. 701
.702
.702
.702
.703
. 703
. 7 } j
. 704
.704
.704
.705
SU4 S
WT-PCT
.060
.061
.061
.061
.062
.062
.062
.062
.062
.062
.062
.062
.062
.062
.062
.362
.062
.062
.062
.063
.063
.063
.063
.063
.063
.063
. J63
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
ASh
WT-PCT
19.530
19.290
18.888
18.912
IS. 753
lb.601
1 8.560
18.525
18.514
18.455
18.410
18.346
18.267
18.238
18.215
18.178
18. 123
18.082
18.047
17.995
17.956
17.944
17.921
17.890
17.858
17.858
17.814
17.792
17.739
17.736
17.710
17.691
17.692
17.648
17,623
17.612
17.594
Hi CO.'JTEiNT
BTU/LB
12366
12415
12497
124^2
12524
12 b56
12564
12571
12573
12585
12594
12608
12624
12630
12634
12642
12653
12661
12669
12679
12687
12690
12695
12701
12707
12707
12716
12721
12732
12732
1273R
12741
12741
12 750
12755
12756
12761
-------
TABLE B-5» Continued
1
CJ1
ro
i
541
556
571
586
601
bio
631
646
60 1
676
691
706
721
736
751
FROM
,052n
.0496
.C4M
.0444
.0407
.0377
.0359
."339
.0 326
.0315
.031?
.0322
.0343
.0328
.0297
FINAL COAL
608.31
605.04
6C1.83
598.54.
595.37
592.21
589.09
5 .H 6 . 0 3
5 -j 5.02
579.88
5/0.75
573.52
5 7 : . 2 3
567. 14
503.99
ANALYSIS
78. 15
73.70
79.24
79. od
80.17
HO. 54
80.95
J 1 . 2 7
Ml. 55
81.93
82.28
82.74
d3.49
83. 7b
83.93
89.75
(3.67
fi.49
*. 3*
8. 17
6.00
7.34
7.70
7.55
7.4d
7.27
7.14
7.03
6.95
6.83
6.71
Exp.No.46 Cont'd.
1.593
1.573
1 .553
1.5'3i
1.519
1.505
1.490
1.478
1 .468
1.455
1.441
1.424
1.397
1.366
1.380
1.600
.825
.305
.785
.764
.750
.736
. 721
.7J9
.698
. 6d5
.671
.054
.626
.015
.009
.390
.7J5
.705
.705
.706
.706
.706
.706
.706
.706
.707
. 707
.707
.707
.707
.708
.920
.063
.063
.063
. Oo3
.063
.063
.063
.063
.063
.C63
.063
.063
.063
.063
.063
.290
17.574
17.55 7
17.540
17.523
17.511
17.500
17.487
17.477
1 7.4fcd
17.457
17.445
17.431
17.408
17.398
17.394
17.210
12765
12769
12772
12776
12778
12781
12783
12765
127^17
1^789
12792
12795
12799
12801
12302
12253
-------
TABLE B-6. FERRIC ION TO TOTAL IRON RATIO EFFECT ON PYRITIC SULFUR REMOVAL RATE
SUMMARY OF REACTION DATA FOR S04/S= 1.500 LOWER KITTANNING, -100 MESH. EXP.N0.47 5.6% Fe, 44% as Fe
en
MIN
FROM
START
10
20
35
50
65
80
95
110
125
140
170
i 200
; 230
240
FROM
FE+2/F
HT. RAT
.4475
.4667
.5142
.5311
.5602
.5737
.6045
.6088
.6206
.6323
.6518
.6649
.6773
.6809
CGAL
E FREE
WT.
OF
10 S(ELEM1
537.
536.
533.
532.
530.
529.
527.
527.
526.
525.
69
*3
33
23
37
50
55
28
5*
81
52*. 61
523.
523.
522.
FINAL COAL ANALYS
SUMMARY OF
MIN
FROM
START
10
20
35
50
65
80
95
110
125
1*0
170
200
230
2*0
FROM F
K- + 2/FE
WT. RATIO
.193*
.2771
.3575
.*080
.*540
.*811
.5065
.5225
.5561
.5632
.5676
.6017
.610*
.6186
INAL COAL
81
06
85
IS
REACTION DATA
r o A i. * T
f-kEd JF
S(ELEM)
527.02
523.73
520.57
516.59
516.80
515.76
51*. 79
51*. 18
512.92
512.66
511.76
511.25
510.93
510.6*
ANALYSIS
PYRITE
REMOVEL.
PCT OF INIT
.67
3.40
10.09
12.47
16.51
13.37
22.59
23.18
24.79
26.36
28.96
30.68
32.30
32.76
42.57
FOR S04/S= 1
CUMULATIVE
KATE
PCT/HR
*.CO
10.19
17.29
14.96
15.2*
13.78
1*.27
12.65
11.90
11.30
10.22
9.20
8.43
8.19
. 500 LOWER
PYRITif CUMULATIVE
PC
RcrtOVED
T OF INIT
*.9*
13.15
21.03
i!5.96
30. *2
33.03
35.**
36.96
*»0 . 1 1
*0.76
*3.00
**.28
*5.06
*5.78
52.9*
RATE
PCT/HR
29.62
39.**
36.0*
31.15
28.06
2*. 77
22.38
20.16
19.25
17. *7
15. Id
13.28
11.75
11. *5
CALCULATED
TL1TAL
WT-PCT
*.299
*.210
3.992
3.91*
3.781
3.719
i.578
3.559
3.505
3.*52
3.364
3.306
3.251
3.235
3.070
KITTANNING,
CAL
TOTAL S
rtT-PCT
*. 15d
3.887.
3.623
3.*36
3.30*
3.215
3.132
3.079
2.970
2.9*8
2.&70
2.825
2.798
2.773
2.800
S PYR. S
WT-PCT
3.568
3.*78
3.256
3.176
3.0*1
2.977
2.83*
2.81*
2.759
2.705
2.616
2.556
2.500
2.484
2.14C
-100 MESH,
COAL ANALYSES STEP-BY-ST tP
ORG. S
WT-PCT
.670
.672
.676
.677
.680
.681
.t83
.68*
.685
.686
.687
.688
.689
.689
.780
. EXP.NO
SO* S
WT-PCT
.060
.060
.061
.061
.C61
.061
.061
.Obi
.061
.061
.062
.062
.062
.062
. 150
ASH
WT-PCT
19.859
19.732
19.*18
19.305
19.113
19.02*
18.821
18.793
18.715
18.639
18.512
18.428
18.349
. 18.326
17.8*0
.48 4.8% Fe, 14%
CULATrU COAL ANALYSES 3TE
PYR. S
WT-PCT
3.*26
3.1*9
2.8bl
2.711
2.557
2.*66
2.382
2.328
2.213
2. 19*
2.115
2.070
2.0*2
2.016
1.760
i)ko. S
WT-PCT
.673
.677
.681
.683
. 646
.687
.688
.689
.691
.691
.693
.693
.69*
.69*
.900
So* S
WT-PCT
.060
.061
. J61
.061
.061
.062
.062
.062
.062
.062
.062
.062
.062
.062
. 1*0
HT CJuTt
QTU/LB
12298
12J21
U379
12*00
12*35
12*52
12*89
12*9*
12S09
12523
125*6
12562
12576
12580
12707
as Fe+2
P-BY-STEP
ASH
WT-PCT
19.700
19.382
IS-. 07 3
18.o77
Id. 699
18 .59*
lb.*97
18.*35
18.3G8
18.^81
18. 1^0
13.137
18.105
18.076
17.780
hi Cuf«TifNT
bTU/Ld
12328
12389
1
-------
TABLE B-6. Continued
SUMMARY OF REACTION DATA FOR S04/S= 1.500 LOWER KITTANNING, -100 MESH. EXP.N0.49 COUNTER CURRENT LEACH
MIN
FROM
START
1C
20
35
50
65
80
95
110
125
1*0
155
170
185
200
215
230
2*5
260
290
320
350
380
410
411
423
450
480
510
540
570
600
630
690
750
FRON
FE*2/FE
HT. RATIO
.5185
.5253
.5046
.5237
.5403
.5561
.5492
.5450
.5556
.5539
.5528
.5332
.5253
.4985
.4730
.4411
.4203
.4074
.3883
.3551
.3326
.3196
.2917
.2917
.2975
.2894
.2728
.2573
.2574
.2409
.2325
.2089
. 2007
. 167B
FINAL COAL
COAL MT.
FKEE OF
S(ELEM)
536.78
535.30
534.15
531.14
526.63
522.49
518.40
514.51
509.64
505.90
501.67
497.82
494.47
491.51
487.76
485.07
481.46
477.01
472.36
468.86
464.76
460.82
457.79
457.79
446.14
441.75
438.39
435.06
431.34
42».73
426.13
423.50
418.89
415.80
ANALYSIS
PYRITE CUMULATIVE
REHUVEO RATE
PCT OF INIT PCT/HH
.16 .97
1.04 3.13
2.29
6.20
9.41
13.09
16.52
18.50
21.49
23.96
27.41
29.17
32.59
33.25
36.13
35.50
38.01
42.47
47.29
49.38
52.55
56.36
58.00
58.00
58.79
63.40
65.86
67.51
70.68
71.39
73.58
73.04
78^46 "'
79.16
85.90
3.93
7.44
8.68
9.82
10.44
10.09
10.32
10.27
10.61
10.30
10.57
9.98
10.08
9.26
9.31
9.80
9.78
9.26
9.bi
8.90
8.49
8.47
a. 34
8.45
8.23
7.94
7.85
7. ~5 2
7.36
6.96
6.82
6.33
CALCULATED
TOTAL S PYR. S
WT-PCT HT-PCT
4.315 3.585
4.286 3.555
4.245 3.514
4.116 3.383
4.010 3.275
3.887 3.150
3.772 3.033
3.706 2.966
3.605 2.863
3.521 2.778
3.404 2.659
3.344 2.598
3.226 2.479
3.204 2.456
3.105 2.355
3.126 2.377
3.040 2.289
2.885 2.131
2.716 1.960
2.642
2.530
2.395
2.337
2.337
2.308
2.143
2.054
1.995
1.879
1.853
1.774
.885
.771
.634
.574
.574
.546
.378
.287
.227
.110
.083
.002
1.793 1.022
1.595 .820
1.568 .794
1.660 .540
COAL ANALYSES STE
ORG. S S04 S
MT-PCT WT-PCT
.670 .060
.671 .060
.671 .060
.673 .060
.675 .060
.676 .061
.678 .061
.679 .061
.681 .061
.682 .061
.684 .061
.685 .061
.686 .061
.687 .061
.688 .062
.688 .062
.689 .062
.691 .062
.694 .062
.695 .062
.697 .062
.699 .063
.700 .063
.700 .063
.700 .063
.702 .063
.704 .063
.705 .063
.706 .063
.707 .063
.708 .063
.708 .063
.711 .064
.711 .064
.900 .220
P-BY-STEP
ASH HT
NT-PCT
19.884
19.853
19.BC7
IV.666
19.550
19.415
19.290
19.217
19.106
19.014
18.886
18.820
18.691
18.666
18.558
Id.582
18.487
18.317
18.131
18.051
17.928
17.780
17.716
17.716
17.685
17.503
17.406
17.341
17.214
17.186
17.099
17.120
16.902
16.874
16.600
CONTENT
BTU/LB
12293
12299
12308
12335
12358
12384
12408
12422
12444
12461
12486
12499
12524
12529
12550
12545
12563
12596
12632
12648
12671
12700
12713
12713
12719
12754
12772
12785
12810
12815
12832
12828
12870
12875
12736
-------
TABLE B-6. Continued
in
en
i
.
MIN
START K
12
27
42
57
72
|— 87-
1C2
132
147
162
192
207
222
2 >7
252
267
2^2
207
312
327
r *"
372
""id j~~
40 5
4 1 o
431
_ 44S
Wo
4Sr3
508
523
SUMMARY OF REACTION DATA FOR S04/S= 1.500 LOWE
CCAL hT. PY?ITF CUMULATIVE
FE+2/FE fK.bc I'f- Rir^CVEL" PATE
T. RATIC
.1315
.2554
.306V
.3441
. 35c 0?
. 1524
.1511
. 1277
. 1252
.1197
M095 "
. 1021
.1021
. 1 16?
. il37
.1057
.0951
. OH,'r-
.0731
.C66:-
S ( P L 0 M )
698. 18
689. 18
t-&<:. -JO
677.C4
672.2-1
667.70
664. 95
661.43
657.""t2
64'). ^1
646.52
643.05
039.52
635.9i>
c?2.22
629.07
626. Cl
622.43
M2. 72
( r-). 3 0
606. 12
602.75
6C2.75_
5tk' . bO
585.47
5b2.21
579.18
575.90
572.96
T, 6 ;J . 9 4
5 6 o . Ti
•^ L, 3 . 4 L)
56J.58
557.61
PCT OF INIT
11.17
24. 11
31.06
37. 95
43.03
47. 14
47.11
48.03
50 . 73
52.09
55.23
56.42
57.95
59.46
ol. 14
i> 2 . 0 J
63.03
65.46
66. 78
6'V. 00
0^*50
70.02
71. j.7
72.37
73.54
73.54
77." S 7
74.89
76.23
77.14
77.70
" 78.73" "
79. b^
ac .44
81.01
PCT/HR
55. 8b
53.58
45.26
39.95
35.o6
'32.51
27. 71
24.94
2 3. Co
21.26
2C. 46
19. 12
18. 11
17.23
16.52
15.93
15. 15
14.71
14.21
li . 9 4
13. IS
12. d5
12.52
"12.16
11.86
11.83
11.59
11.43
11.29
1C.94
10.69
10.41
10.20
S.rtO
' "9".5'7 "
9.39
CALCULATED
TOTAL S PYR. S
WT-PCT WT-PCT
3.950 3.214
3.513 2.771
3.254 2.506
3.038 2.286
2.061 2.108
2.717 1.962
2.718 1.963
2.6b4 1.9C9
2.590 1.833
2.542 1.785
2.430 I.o71
2.388 1.628
2.334 1.573
2.2MO 1.518
2.220 1.457
2.155 1.392
2. 130 1.366
2.064 1.299
2.016 1.251
1.9?b 1.1o9
1.952 1.135
l.dS>9 1.131
1 . i5C I.081
I.bl3 1.045
1.770 1.0C1
1.770 1.001
1.755 .985
1.721 .951
1.6P7 .917
1.672 .901
1.63o .867
I.ol8 .846
1.58C .80H
1.55G .777
1.515 .742
1.496 .723
1.465 .691
COAL ANALYSES STE
GK6. S
.675
.631
.685
.6d8
.691
.b93
.693
.693
.694
.695
.097
.697
.698
.699
.7jC
.701
.701
.702
.703
.704
.704
.7J4
.705
.705
.706
. 706
. 706
.707
.707
. 707
.708
.708
.709
. 709
.710
.710
.710
S04 S
fcf-PCT
.060
.Obi
.061
.Ob2
.062
.062
.062
.062
.062
.Ob2
.062
.6b2
.063
.063
.C63
.063
.06 j
.063
.063
.063
.Ooj
.063
.Cb3
.Oo3
.C63
.063
.063
.063
.063
.063
.063
.Ob3
.063
.064
.C64
.064
.Co4
P-6Y-STfcP
ASH HT
rfT-PCT
19.516
07b
814
596
417
272
273
219
144
096
983
S40
885
831
770
705
17.b80
17.613
17.565
17.484
50U
446
397
360
317
317
301
267
233
218
184
163
125
095
059
040
19.
18.
18.
18.
18.
18.
Id.
18.
la.
17.
17.
17.
17.
17.
17.
17,
17.
17.
17.
17.
17.
17.
17.
17.
17.
17.
17.
17.
17.
17.
17.
17.009
CONTENT
BTU/LB
12366
12452
12504
12547
12582
12610
12610
12621
12635
12645
12667
12675
12686
12o97
12709
12722
12727
12740
12749
12765
12762
12773
12782
12790
12798
12796
12801
12808
12815
12818
12824
12828
12836
12842
12849
12853
12859
-------
TABLE B-7. TEMPERATURE EFFECT AT AMBIENT PRESSURE ON PYRITIC SULFUR REMOVAL RATE
SUMMARY OF REACTION DATA FOR S04/S= 1.500 LOWER KITTANNING, -100 MESH EXP.N0.51 4.8% Fe, no Fe
+2
in
«vl
i
MIN •
FROM
START
15
30
45
60
75
90
105
120
135
150
165
180
195
210
225
240
255
270
285
300
315
330
345
350
361
375
390
405
420
435
4t>0
465
480
495
510
525
540
FE+2/FE
WT. RATIO
.0827
.1470
.1884
.2157
.2289
.2361
.2332
• .2317
.2353
.2299
.2268
.2173
.2056
.2083
.1353
. 1912
. 1772
.1592
.1506
.1434
• .1359
. 1268
.1274
.1349
.1349
.1383
.1118
.0965
.0940
.0937
.0949
.0914
.0899
.08-J6
.0873
.0846
.OSCS
CC1AL WT.
FREE OF
PyRITE CUMULATI
REMOVED RATE
SCELEM) PCT OF INIT
633.33 8.68
627.41 16.50
621.96
616.92
612.10
607.73
6U3.87
599.97
595.82
592.21
588.41
585.08
581.89
577.98
575.13
570.95
567.78
564.93
561 .87
558.88
555.37
552.79
549.62
546.00
546.00
532.63
529.97
527.01
523.35
520.56
517.37
514.32
511.18
508.18
505.25
502.14
499.14
23.11
28.46
33.27
37.02
39.78
42.57
45.98
43.10
50.62
52.06
53.35
56.27
56.78
59.84
60.96
60.98
62.09
63.03
63.85
o4. rt7
66.34
68.76
68. 76
70.70
70.19
70.53
71.48
72.87
74.08
74.86
75.90
77. 04
77. b-J
78.82
79.59
PCT/HR
34.70
32.99
30.81
28.46
26.62
24.68
22.73
21.29
20.44
19.24
18.41
17.35
16.42
16.08
15.14
14.96
14.34
13.55
13.07
12.61
12.16
11.79
11.54
11.46
11.43
11.31
10.80
10.46
10.21
1C. 05
9.88
9.66
9.49
9.34
9.16
9.01
3.84
Vc CALCULATED COAL ANALYSES STEP-BY-STEP
TOTAL S PYR. S ORG. S SQ4 S ASH HT CONTENT
WT-PCT
4.033
3.771
3.548
3.365
3.200
3.070
2.974
2.877
2.758
2.684
2.595
2.544
2.498
2.394
2.376
2.267
2.226
2.226
2.186
2.152
2.123
2.086
2.032
1.945
1.945
1.874
1.393
1.879
1.646
1.795
1.751
1.723
1.635
1.643
1.612
l.b?7
1.549
WT-PCT HT-PCT
3.299 .674
3.033 .678
2.806
2.620
2.453
2.321
2.224
2.125
2.004
1.928
1.338
1.786
1.740
1.634
1.616
1.505
1.464
1.463
1.423
1.389
1.358
1.321
1.267
1.178" "
1.178
1.106
1.125
1.111
1.078
1.C26
.981
.952
.914
.671
.840
.805
.776
.681
.634
.686
.688
.689
.691
.692
.693
.695
.695
.696
.697
.698
.699
.700
.700
.700
.701
.701
.702
.703
.704
.704
.705
'. 705 "
.705
.705
.7C6
.707
.707
.708
.708
.709
.739"
.709
WT-PCT
.060
.061
.061
.061
.061
.062
.062
.062
.062
.062
.062
.062
.062
.062
.062
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.06"3
.063
.063
~~.Cf63~~
.064
WT-PCT
19.598
19.331
.19.103
18.917
13.749
18.617
18.519
18.420
18.299
18.223
18.132
18.080
18.034
17.928
17.909
17.798
17.757
17.756
17.716
17.682
17.651
17.614
17.560
17.470
17.470
17.399
17.418
17.403
17.370
17.318
17.273
17.244
17.205
17.163
17.131
" 17.09-6 '
17.067
BTU/LB
12349
12402
12446
12483
12516
12542
12561
12581
12604
12619
12637
12647
12656
U677
12681
12703
12711
12711
12719
12725
12731
12739
12749
127~67
12767
12761
12777
12780
12787
12797
12806
12811
12819
12827
12b34
T2840
12346
-------
TABLE B-7. Continued
Exp.No.51 Cont'd.
555
570
585
400
615
630
645
660
675
690
( 7U5
720
FROM F
.0754
.070C
.0689
.0590
.0565
.0537
.0526
.0^69
.045(i
.04 19
.0394
.0395
INAL COAL
496.15
493.25
490. 14
4 a 7 . 3 7
484.45
481.61
478.64
476.04
473.25
470.5o
467.72
464.85
ANALYSIS
30.09
63.53
61.39
61 .46
82.09
62.69
83.61
«3.59
J4.C6
S4. 16
d4. 62
85.29
89.03
8.66
8.48
H.35
H. 15
8.01
7.88
7.78
7.60
7.47
7.32
7.20
7.11
en
00
r
1.530
1.514
1.482
1.48C
1.456
1.434
1.400
1.401
1.333
1.360
1.363
1.338
1.330
,757 .
.741
.708
.706
.632
.660
.625
.626
.608
.604
.587
.562
.420
4.71Q
. 710
.710
.710
.711
.711
.712
. 7 12
.712
.712
."7 T 2" "
.712
. 730
.064
.C64
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.160
17_,046
~17.C32
16.999
16.997
16.973
16.950
16.915
16.916
16.899
16.895
16.877
16.852
16.710
12850
12853
12859
12660
12865
12869
12376
12876
12879
1238U
12883
12888
12142
-------
TABLE B-7. Continued
SWWARY OF REACTION DATA FOR S04/S- 1.500 LOWER KITTANNING, -100 MESH EXP. NO.52 4.7% Fe, no Fe*2
I
en
vo
MIN
FROM
START
15
30
45
6U
75
90
105
120
135
150
165
180
195
210
225
240
255
270
285
300
315
330
345
360
361
375
390
405
420
435
450
465
480
495
510
525
540
FE+2/F6
COAL WT .
FREE OF
PYRITE
REMOVED
CUMULATIVE
RATE
WT. RATIO S(ELEM) PCT OF INIT PCT/HR
.0687 682.39 6.21 24.86
.0990 677.71 10.05 20.10
. 1141
.1491
.1611
.1664
.1567
.1554
. 1600
. 1467
.1533
. 1375
.1448
.1344
.1295
.1295
.1256
.1162
.1129
.1067
. 1044
.0986
.0971
.0947
.0947
.0938
.0904
.OU95
.0671
.0855
.0874
.0846
.0817
.0799
.0767
.0750
.0708
673.84
668.71
664.69
660.63
657.24
653.47
649.37
646. 16
642.03
639.05
634.98
631.72
623. 13
fc?4.35
620.80
617.54
613.96
610.57
607.01
6C3.77
600.29
596.88
596. 8tt
538.36
584.97
581.49
578.06
574.57
570.86
5b7.42
564.00
560.54
557. 15
553.71
550.40
12.99
17.94
20.58
23.38
24.44
26.32
28.80
29.61
32.29
32.54
35.06
35.-8J
37. lb
39.15
40.49
41.19
42.65
43.59
44.89
45.56
46. 7a
47.82
47.82
43.51
49. 4S
50.68
51.60
52.62
54.08
54.85
55. 58
56.45
5?. 15
57.95
58.42
17.
17.
16.
15.
13.
13.
12.
11.
11.
10.
10.
10.
9.
9.
V.
9.
8.
8.
8.
8.
8.
7.
7.
7.
7.
7.
7.
7.
7.
7.
6.
6.
6.
6.
6.
32
94
47
59
97
16
80
84
74
85
79
23
91
79
53
15
98
72
55
28
14
97
95
76
61
51
37
26
21
08
93-
84
72
62
49
CALCULATED COAL ANALYSES STEP-BY-STEP
TOTAL S PYR. S ORG. S SU4 S ASH HT CONTENT
WT-PCT
4.116
3. 989
3.J91
3.725
3.636
3.541
3.505
3.441
3.357
3.330
3.23d
3.229
3.142
3.117
3.069
3.001
2.954
2.930
2.879
2.846
2.M01
2.777
2.735
2.698
2.698
2.674
2.640
2. 597
2.565
2.529
2.477
2.450
2.4?4
2.393
2.368
2/339
2.322
WT-PCT
3.382
3.253
3.154
2.985
2.895
2.799
2.762
2.697
2 . 6~1 1
2.583
2.490
2.481
2.393
2.367
2.319
2.249
2.202
2.177
2.125
2.092
2.046
2.022
1.979
1.941
1.941
1.917
1.882
1.839
1.8C6
1.769
1.717
1.689
1.663
1.631
1.606
" "1 ."5TT
1.559
WT-PCT
.673
.675
.676
.679
.680
.682
.682
.683
.684
.685
.686
.686
.688
.688
.689
.690
.691
.691"
.692
.692
.693
.693
.694
.694
.694
.695
.695
.696
.696
.697
.698
.698
.699
.699
.699
. 700
.700
WT-PCT
.060
.060
.061
.061
.061
.061
.061
.061
.061
.061
.061
.061
.062
.062
.062
.062
.062
.062
.062
.062
.062
.062
.062
.062
.062
.C62
.062
.062
.062
.062
.062
.063
-•• .06?""
.063
.063
.Oo 3
.U63
WT-PCT
19.663
19.522
19.413
19.228
19.130
19.024
18.984
18.913
18.M19
18.789
18.687
18.677
18.581
18.552
18.499
18.423
18.371
18.344
18.288
18.251
13.201
18.175
Id. 127
18.087
18.087
18.060
18". 022
17.975
17.939
17.898
17.841
17.810
17.7ff2
17.747
17.719
1 7.688
17.669
8TU/L8
12336
12363.
12384
12420
12439
12459
12467
12480
"12499
12504
12524
12526
12545
12550
12560
12575
12585
"12590
12601
12608
12618
12623
12632
126415
12640
12645
12652
12661
12668
12676
12687
12693
126^9
127C5
12711
F2TI7
12720
-------
TABLE B-7. Continued
Exp.No.52 Cont'd.
Ot
o
555
570
585
600
615
630
645
660
675
690
705
720
FROM
.0734
.0759
.0752
.C69C
.0738
.0672
.0650
.0599
.C6.12
.054o
.0608
.0625
FINAL COAL
546. 7b
543.16
539.71
536.56
533.02
529.93
526.56
523.35
520.09
517.14
513.61
510.28
ANALYSIS
59.73
60.97
61.84
61 .98
63.59
63.59
64.28
to'*. 56
65.64
65. 7d
67.44
68.55
69.88
6.46
6.42
t.34
6.20
6.20
6.06
5.98
5.87
5.83
5.72
5.74
5.71
2.276
2.231
2.200
2._195
2."137
2.137
2.112
2 . 1 C 2
2.003
2.058
K998
1.958
1.910
1.512
1.467
1.435
1.430
1.371"
1.371
1.346
1.336
1.296
1.291
l."230
1.139
1.14C
. Z.0.1.
.701
.702
,_702
". 703"
.703
.703
. 704
._70_4_
. 705
.706
.660
.063 .
.063
.Ot>3
.063
.063
.063
.063
". 06~3
.003
.063
T063
.063
.110
.11.617
17.567
17.533
17.527
"17.463
17.463
17.435
1 7 . 424
17.381
17.375
"17". 308
17.263
17.210
1273Q.
12740
12747
12748
12760
12760
12765
12768
12776
12777
12790
12799
12836
-------
TABLE B-8. MULTI-BATCH EXTRACTION OF PYRITIC SULFUR FROM COAL
SUMMARY OF REACTION DATA FOR S04/S= 1.500 LOWER KITTANNING, -100 MESH EXP.N0.53 COUNTER CURRENT MULTI-BATCH LEACH
MIN
FROM
STAKT
15
32
47
62
63
7J
83
101
116
131
146
147
157
167
182
197
212
227
228
238
248
263
278
293
308
,309
319
333
34ft
363
378
393
394
404
419
434
449
FE*2/FE
WT. RATIO
.5186
.5534
.5700
.6135
.6135
.4243
.4434
.4867
.5157
.5402
.5574
.5574
.3239
•3502_
.3863
.4122
.4394
.4511
. 45 1 1
.2135
.2345
.2703
.2845
.3017
.3192
^.3191 .....
.1023
.1203
,1393 . .
.1561
.1670
.1814
.1814
.0995
.1113
.1212
.1304
COAL MT.
FREE OF
S(ELEM)
657.79
653.39
650.14
645.18
645.10
627.52
624.47
619.64
615.94
611.74
608.22
608.22
593.33
588.88
584.50
579.88
575.37
572.34
572.34
551.71
548.00
544.24
541.06
537.89
534.50
534.50
518.52
515.13
512.08
509.06
506.31
502.76
502.76
486.41
482.82
479.63
476.60
PYRITE CUMULATIVE
REMOVED
PCT OF INIT
.50
4.07
5.7d
10.29
10.29
9.78
11.88
16.68
19.91
22.65
24.58
24.58
25.87
28.80
32.83
35.74
38.81
40.13
40.13
40.60
43.08
47.32
49.00
51.06
53.15
53.15
52.78
54.95
57.24
59.28
60.61
62.36
62.36
62.37
63.86
65.13
66.29
RATE
PCT/HR
2.01
7.63
7.38
9.96
9.80
8.04
8.59
9.91
10.30
10.37
10.10
10.03
9.89
10.35
10.82
10.88
10.98
10.61
10.56
10.24
10.42
10.79
10.58
10.46
10.35
10.32
9.93
9.90
9.87
~9.~80
9.62
9.52
9. '50
9.26
9.15
9. "00
8.86
CALCULATED
TOTAL S
WT-PCT
4.304
4.190
4.135
3.989
3.989
4.006
3.937
3.780
3.674
3.5B3
3.519
3.519
3.476
3.377
3.241
3.143
3.037
2.992
2.992
2.976
2.890
2.743
2.684
2.612
2.539
2.539
2.552
2.475
2.394
2.321
2.273
2.211
2.211
2.210
2.157
2.111
2.069
PYR. S
WT-PCT
3.574
3.457
3.401
3.252
3.252
3.269
3.199
3.039
2.930
2.837
2.772
2.772
2.727
2.627
2.488
2.387
2.280
2.233
2.233
2.217
2.130
.979
.919
.646
.770
.770
.784
.705
.622
1.548
1.499
1.435
1.435
1.435
1.380
1.334
1.290
COAL ANALYSES STEP-BV-STEP
ORG. S
WT-PCT
.670
.673
.674
.677
.677
.676
.678
.681
.683
.685
.686
.686
.687
.689
.691
.693
.695
.696
.696
.697
.698
.701
.702
.704
.705
.705
.705
.706
.708
.710
.710
.712
.712
.712
.713
.714
.714
S04 S
WT-PCT
.060
.060
.060
.061
.061
.061
.061
.061
.061
.061
.061
.061
.061
.062
.062
.062
.062
.062
.062
.062
.063
.063
.063
.063
.063
.063
.063
.063
.063
.064
.064
.064
.064
.064
.064
.064
.064
ASH
WT-PCT
19.864
19.674
19.583
19.341
19.341
19.369
19.256
Id. 996
18.819
18.669
18.562
18.562
18.491
18.328
18.102
17.938
17.764
17.689
17.689
17.662
17.521
17.277
17.179
17.060
16.936
16.938
16.959
16.832
16.697
16.577
16.498
16.394
16.394
16.393
16.304
16.229
16.159
HT CONTENT
8TU/LB
12297
12331
12347
12391
12391
12386
12407
12454
12485
12513
12532
12532
12545
12574
12615
12645
12676
12690
12690
12694
12720
12764
12782
12803
12825
12825
12821
12844
12869
12890
12905
12924
12924
12924
12940
12953
12966
-------
TABLE B-8. Continued
Exp.No.53 Continued
464
465
475
485
500
515
530
545
546
556
571
586
601
616
617
627
637
652
667
0, 682
r«o 697
1 698
708
723
738
753
768
769
779
789
804
819
834
849
864
879
894
909
FROM
.1368
.1368
.0912
.0966
.1035
.1085
.1125
.1193
.1193
.0954
.0973
.0995
.1070
.1084
.1084
.0916
.0913
.0942
.0963
.1110
.1004
.10C4
.0907
.0923
.0936
.0963
.0949
.0949
.0908
.0913
.0930
.0934
.0945
.0955
.0957
.0969
.0987
.0950
FINAL COAL
473.84
473.84
453.63
450.42
447.43
444.55
441.74
438.76
430.76
425.84
423.16
420.45
417.42
414.67
414.67
403.99
401.13
398.19
395.50
391.97
390.31
390.31
373.83
370.96
368.41
365.68
363.19
363.19
" 346.79
343.99
341.12
338.53
336.09
333.45
331.17
328.53
325.86
323.50
ANALYSIS
67.11
67.11
66.29
67.03
67.96
68.63
69.17
70.11
70.11
70.00
70.26
70.58
71.66
71.06
71.86
72.11
72.07
72.50
72.01
74.98
73.42
73.42
73.59
73.86
74.07
74.51
74.28
74.28
74.53
74.61
74.92
74.99
75.19
75.37
75.39
75.62
75.93
75.27
96.96
8.68
8.66
8.37
8.29
0.16
8.00
7.83
7.72
7.7U
7.55
7.38
7.23
7.15
7.00
6.99
6.90
6.79
6.67
6.55
6.60
6.32
6.31
6. "2 4
6.13
6.02
5.94
5.80
5.80
5.74
5.67
5.59
5.49
5.41
5.33
5.24
5.16
5.10
4.97
2.039
2.039
2.069
2.042
2.008
1.984
1.964
1.930
1.930
1.934
1.925
1.913
1.873
1.066
1.866
1.857
1.358
1.843
1.631
1.752
1.609
1.809
1.803
1.793
1.785
1.769
1.777
1.777
1.768
1.765
1.754
1.751
1.744
1.737
1.736
1.728
1.716
1.741
1.260
1.260
1.260
1.291
1.263
1.229
1.204
1.184
1.149
1.149
1.153
1.143
1.131
1.091
1.003
1.083
1.074
1.075
1.060
1.048
.966
1.025
1.025
1.019
1.009
1.000
.984
.992
.992
.983
.980
.969
.966
.958
.952
.951
.942
.930
.955
.120
.715
.715
.714
.715
.716
.716
.717
.717
.717
.717
.717
.718
.718
.718
. 7ltt
.719
.719
.719
.719
.721
.720
.720
.720
.720
.720
.720
.720
.720
.720
.720
.721
.721
.721
.721
.721
.721
.721
.721
.930
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.065
.064
.064
.064
.064
.064
.065
.065
.065
.065
.065
.065
.065
.065
.065
.065
.065
.065
.065
.210
16.110
16.110
16.159
16.115
16.059
16. Old
15.986
15.929
15.929
15.936
15.920
15.901
15.835
15.823
15.823
15.806
15.810
15.784
15.765
15.633
15.728
15.728
15.718
15.702
15.688
15.662
15.676
15.676
15.661
15.655
15.637
15.632
15.620
15.609
15.608
15.594
15.575
15.615
14.260
12975
12975
12966
12974
12984
12991
12997
13007
13007
13006
13009
13013
13025
13027
13027
13029
13029
13034
13037
13061
13044
13044
13046
13049
13051
13056
13053
13053
13056
13057
13060
13061
13063
13065
13066
13068
13072
13064
13258
-------
TABLE B-9. TOTAL IRON CONCENTRATION EFFECT ON PYRITIC SULFUR REMOVAL RATE
SUMMARY OF REACTION DATA FOR 504/S- 1.500 LOWER KITTANNING, -100 MESH. EXP.N0.54
3.8X Fe. ne Fe1
OJ
I
HIN
FROM FE+2/FE
COAL WT.
FREE OF
PYRITE CUMULATIVE
REMOVED RATE
START WT. RATIO S(ELEM) PCT OF INIT
10 .0537 781.86 3.21
25 .1295 775.07 8.62
40
55
70
85
100
115
130
145
160
175
190
, 205
220
235
250
265
280
295
310
325
340
"355
370
371
380
390
405
~~" 420"
435
,_ 45C
"465
480
495
"510
525
.2165
.2606
.3082
.3275
.3676
.3630
.3648
.3409
.3166
.3051
.2844
.2752
.2639"
.2551
.2463
.2389
.2332
.2662
.2222
.2181
.2289
".1745
.1656
.1656
.1763
.1888
.2015
.2159
.2271
.2327
.2416
.2501
.2604
.2540
.2654
767.33
761.23
754.38
743.17
740.97
736.64
731.58
727.27
723.35
719.16
715.25
711.33
707.43
7C3.46
699.53
695.59
691.28
685.23
683.02
678.98
674.24
672.65
669.15
669.15
655.84
652.32
648.79
645.19
641.71
638.48
635.10
631.73
628.31
625.57
622.11
15.38
19.94
25.39
29.88
35.75
37.94
40.92
42.73
44.13
45.83
47.14
48.65
50.06
51.58
53.00
54.48
56.54
61.12
60.16
61.91
64.51
62.62
63.63
63.63
64.36
65.19
66.05
67.01
67.76
68.14
68.73
69.30
69.98
69.56
70.31
PCT/HR
19.27
20.69
23. "06
21.75
21.76
21.09
21.45
19.79
18.89
17.68
16.55
15.71
14.89
14.24
13.65
13.17
12.72
12.~34
12.12
12.43
11.64
11.43
11.38
10.58
10.32
10.29
10.16
10.03
9.78
9.57
9.35
9.09
8.87
8.66
8.48
8.T8
8.04
CALCULATED COAL ANALYSES STEP-BY-STEP
TOTAL S PYR. S OR6. S S04 S ASH HT CONTENT
WT-PCT
4.217
4.043
3.823
3.673
3.491
3.340
3.141
3.066
2.964
2.901
2.853
2.794
2.748
2.696
2.646
2.593
2.543
2.491
2.418
2.254
2.289
2.226
2.132
2.200
2.164
2.164
2.138
2.108
2.077
2.042
2.015
2.001
1.979
1.959
1.934
1.949
1.922
WT-PCT WT-PCT WT-PCT
3.485 .672 .060
3.307 .675 .060
3.082 .680 .061
2.929 .683 .061
2.744 .686 .061
2.589 .689 .062
2.386 .693 .062
2.310 .695 .062
2.205 .697 .062
2.141 .698 .062
2.092 .699 .063
2.032 .700 .063
1.985 .701 .063
1.931 .702 .063
1.881 .703 .063
1.826 .704 .063
1.775 .705 .063
1.722 .706 .063
1.647 .707 .063
1.480 .710 .064
1.515 .710 .064
1.451 .711 .064
1.356 .713 .064
1.425 .712 .064
1.388 .712 .064
1.388 .712 .064
1.361 .713 .064
1.330 .713 .064
1.299 .714 .064
1.263 .715 .064
1.236 .715 .064
1.221 .715. . .064
1.199 .716 .064
1.178 .716 .064
1.153 .717 .064
1.169 .716 .064
1.141 .717 .064
WT-PCT
19.722
19.437
19.076
18.830
18.533
18.286
17.960
17.837
17.669
17.567
17.488
17.392
17.317
17.230
17.150
17.062
16.980
16.895
16.775
16.508
16.564
16.461
16.308
16.419"
16.360
16.360
16.317
16.268
16.217
16.160
16.115
16.093
16.058
16.024
15.983
16.008
15.963
BTU/LB
12322
12374
12439
12484
12538
12582 "
12641
12663
"12694
12712
12727
12744
12758
12773
12788
12804
12819
12834
12856
12904
12894
12912
12940
"12920
12931
12931
12939
12947
12957
12967
12975
12979
129B5 "
12992
12999
12994
13002
-------
TABLE B-9. Continued
L 540
555
570
585
"600"
615
630
645
660
675
690
705
720
735
750
FRUM F
.2725
.2764
.2805
.2845
.2892
.2924
.2984
. 3024
.3059
.3099
.3120
.3144
.3184
.32C4
.3217
INAL COAL
618.81
615.64
612.67
609.64
606.72
604.10
600.88
597.75
594.63
591.50
588.39
585.31
582.34
579.48
576.54
ANALYSIS
70.78
71.03
71.30
71.56
71.87
72.07
72.46
72.72
72.95
73.20
73.34
73.49
73.74
73.87
73.95
90.05
7.86
7.68
7.51
7.34
7. 19
7.03
6.90
6.76
6.63
6.51
6.38
6.25
6. 15
6.03
5.92
Exp.No.54 Continued
1.905
1.895
1.886
1.876
1.865
1.857
1.843
1.834
1.825
1.816
1.811
1.805
1.796
1.792
1.788
1.440
1.123
1.114
1.104
1.094
1.082
1.075
1.060
1.050
1.042
1.033
1.027
1.022
1.012
1.008
1.004
.390
.717
.717
.718
.718
.718
.718
.719
.719
.719
.719
.719
.719
.719
.720
.720
.790
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.260
15.935
15.920
15.904
15.889
15.870
15.858
15.834
15.819
15.805
15.790
15.782
15.773
15.757
15.75C
15.745
14.760
13008.
13010
13013
13016
13019
13022
13026
13029
13031
13034
13035
13037
13040
13041
13042
12937
-------
TABLE B-9- Continued
SUMMARY OF REACTION DATA FOR S04/S= 1.500 LOWER KITTANNING, -100 MESH, EXP.N0.55 5.0% Fe, no Fe"1
HIM
FROM
START
10
25
40
55
70
85
100
IT 5
130
145
160
175
190
205
220
235
250
265
280
295
310
325
340
355
370
371
381
391
40o
421
436
451
466
481
496
511
526
Ft+2/Fc
WT. RATIO
.0600
.1700
.195C
. 1810
.1460
.1590
.1610
.1500
.1340
.1480
.1550
.1600
.1640
.1644
.16?C
.1550
.1510
.1460
.1410
.1330
. 1230
.1100
.1010
.C970
.0960
.0960
.1165
.1219
.1367
.1493
.1570
.1665
.1725
.1809
.1876
. 1 944
.1969
COAL WT.
FkES OF
S(ELFM)'
830. 15
821.76
616.03
812.33
H1C.05
H07.03
804.45
802.35
K01.84
800.16
798.78
797.55
796.60
795.73
794.90
794.35
793.66
793.10
792.42
791.69
791.52
791.36
790.99
790.54
789.98
739.98
775.32
772.03
766.49
764.95
761.65
7-58.11
755.22
75L.-V2
7^8.90
745.65
742.65
PYSJTc CUMULATIVE
REf-iGVEQ
PCT OF INIT
4.68
18.45
27.o7
33.93
37.68
42.64
46.88
49.50
51.15
53.92
56.18
58.19
59.76
61.18
t>2. 55
6 '3 . 4 5
64.59
65.51
66.62
67.48
68.10
68.36
68.97
69.70
70.62
70.6?
72.06
72.44
73.48
74.37
74.91
75.71
76.00
76. '>*
77.05
77.52
77.69
KATE
PCT/HR
28.08
44.29
41.60
37.02
32.29
30.10
26.13
25.82
23.61
22.31
21.07
19.95
18.87
17.91
17.00
16.20
15.50
14.83
14.28
13.73
13.16
12.62
12. 17
11.78
11.45
11.42
11.25
11.12
IC.St
10. eo
10.31
10.07
9.78
9.55
9.32
S.10
8.86
CALCULATED
TOTAL 5
WT-PCT
4.166
3.7G(?
3.369
3.161
3.052
2.679
2.731
2.639
2.560
2.482
2.402
2.330
2.274
2.223
2.174
2.141
2.100
2.067
2.027
1.996
1.973
1. 9ft4
1 . ->' 1 2
1.915
1.882
1.882
1 .329
1.615
I . 777
1.745
1.725
1.696 .
1 . o85
1 .66*.
1.S47
1.629
1.623
PYK. S
WT-PCT
3.434
2.966
2.643
2.432
2.301
2. 126
1.975
1.881
1.622
1.722
1.641
1.566
1.511
1.459
1.409
1.376
1.334
1.300
1.260
1.228
1.205
1.196
1. 173
1.146
1. 112
1.112
1.059
1.045
1.C06
.973
.953
.923
.912
' .691
.6/3
.856
.849
COAL ANALYSES STEP-faY-ST
URG. S
WT-PCT
.672
.679
.684
.687
.6B9
.692
.694
.695
.69c
.693
.699
.700
.701
.701
.702
. 703
.703
.704
.704
.705
.705
.705
. 706
.706
.706
.706
.707
.707
.708
.709
.709
.709
.7C9
.710
.710
.710
.710
SU4 S
WT-PCT
.060
.061
.U61
.062
.062
.062
.062
.062
.062
.062
.U63
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.663
.063
.063
.064
.064
.064
.064
. 0 to 4
.064
ASH
WT-PCT
19.720
19.214
18 . »63
1 S . 6 j 3
16.491
18.301
16. 137
18.035
17.971
17.663
17.774
17.695
17.633
17.577
17.523
17.487
17.442
17.405
17.361
17.326
17.302
17.291
17.267
17.237
17.201
17.201
17.143
17.127
17.C«5
17.050
17.028
16.995
16.964
16.'>cC
lo. ^ 1
16.922
16.91 1>
tP
HT CCNTLT
b T U / L 6
12J25
12423
12490
12535
12562
12599
12631
12650
12663
12684
12701
12716
12728
12739
12749
12756
12765
12772
12781
12787
12792
12794
12799
12804
12612
12612
12323
12oI6
1 2 a •* 4
i?64l
12H43
1 ?. ft 5 1
12653
1 e. I
iL>!o2
1 1. ?• o 5
12S-S/
-------
TABLE B-9. Continued
Exp.No.55 Continued
541
556
571
586
601
616
631
646
661
676
691
706
721
736
751
FROM
i
o»
01
i
.204?
.2092
.2154
.2151
.2218
.2260
.2309
.2304
.2346
.2367
.2451
.2462
.2449
.2520
.2553
FINAL COAL
739.54
736.43
733.30
730.41 .
727.32"""
724.26
721.29
713.40
715.49
712.41
709.31
706.34
703.77
700.64
697.74
ANALYSIS
76.20
78.54
78.9o
78.94
79.40
79.68
80.01
79.98
60.27
80.54
er.97
81.04
80.95
81.42
61.64
91.95
8.67
6.48
8.3C
6.06
7.93
7.76
7.61
7.43
7.29
7.15
7.D3
6.89
6.74
6.64
6.52
1.604
1.592
1.576
i.577
1.560
1.550
1.537
1.539
1.528
1.51H
1.5C?
1.50U
1.5C3
1.485
l.f 77
1.500
.83?
.817
.602
.802
.7.85
.774
.762
.763
.753
.742
.726
.724
.727
.709
.701
.310
.711
.711
.711
.711
.711
.711
. fl'L
.712
.712
.712
. 712
.712
.712
.712
.713
.950
. .06^
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.240
16.694
16.881
16.664
16.B64
16.846
16.834
16.821
lb.822
16.310
16.799
16.7B2
16.779
16.782
16.763
16.754
16.330
12871
12673
12877
12677
12880
128P2
12665
12865
•12887
12889
1P392
12893
12892
12896
12898
13069
-------
TABLE B-9- Continued
SUMMARY OF REACTION DATA FOR S04/S= 1.500 LOWER KITTANNING, -100 MESH. EXP.N0.56 6.7% Fe, no Fe*2
MIN
FROM
START
10
25
40
55
70
85
100
115
130
145
160
175
190
205
o» , 220
T4' 235
250
265
280
295
310
325
340
355
370
371
381
396
411
426
441
45o
471
486
501
516
531
FE + 2/Fjf
WT. RATIO
.03CO
.0800
.1230
.1450
.1590
.1420
.1330
.1250
. 1200
.1190
.1220
.1290
.1330
.1320
. 1280
.1240
.1190
.1130
. 1080
.1030
.0980
.0940
.0900
.0860
.0840
.0340
.1016
.1049
.1099
.1168
.1230
.1266
.1317
.1345
.13d6
.1415
.1445
CUAL HT.
FRS^ OF
S(ELEM)'
781.36
773.68
766.72
76J.26
753.70
751.99
749.97
747.85
745.45
744.11
742.48
740.56
738.90
737.71
73 o.76
736.03
735.34
734.29
733.36
732.52
731. 7b
730.96
73J.21
729.57
728.96
723.96
719.53
716.54
713.22
709.95
706.47
7^0 i . 1 9
700.04
696.93
693. 79
690.87
637.67
PYPITE
KcMOVtD
PCT OF INIT
3.58
13.99
23.41
32.15
41.05
43.36
46.09
48.97
52.22
54.03
56.24
58.84
61.09
62.71
6 * . 9 9
64.98
65.91
67.33
68.59
69.73
70.73
71.85
72.87
73.73
74.56
74.56
76.50
76.87
/ 7 . 4 1
78.18
73.85
79.27
/4.dO
bC.ll
SO. 56
80.87
81.20
CUMULATIVE
H'ATc
PCT/HR
21.48
33.57
35.12
35.08
35. 18
30.60
27.66
25.55
24.10
22.36
21.09
20.17
19.29
18.35
17.62
1 .-345
1.534
1.521
PYR. S
rtT-PCT
3.473
3.129
2.812
2.512
2.201
2.120
2.023
1.921
1.604
1.739
1.659
1.564
1.482
1.423
1.376
1.339
1.305
1.252
1.205
1.163
1.126
1.044
1.046
1.014
.982
.982
.909
.895
.375
.846
.62-:
.804
. 7a^
.772
. 7?5
.744
.731
OKCi. S
WT-PCT
.672
.679
.685
.691
.697
.699
.700
.702
.705
.706
.707
.709
.711
.712
.713
.714
.714
.715
.716
.717
.718
.719
.719
.720
.721
.721
.722
.722
.723
.723
.724
.724
.724
.725
.725
.725
.725
S04 S
WT-PCT
.060
.061
.061
.062
.062
.063
.063
.063
.063
.063
.063
.064
.064
.064
.C64
.064
.064
.064
.064
.064
.064
.064
.. J64
.064
.065
.065
.065
.065
.065
.065
.065
.065
.065
.065
.065
.065
.065
rtSH
WT-PCT
19.700
19.139
18.622
18.134
17.628
17.496
17.338
17.171
16.981
16.875
16.744
16.591
16.457
16.360
16.283
16.22f
16.168
16.082
16.0C6
15.937
15.876
15.608
15.746
15.693
15.642
15.642
15.523
15.501
15.467
15.420
15.37b
15.352
15.319
15.30C
15.273
15.254
15.253
HT CONTENT
BTU/Ltt
12326
12426
12521
12609
12700
12724
12753
12783
12817
12636
12H60
12888
12912
12929
12943
12954
12964
12979
12993
13006
13017
13029
13040
1305C
13059
13059
13080
130S4
13091
13099
131C7
13111
13117
13121
13126
13129
1 i 1 "j 3
-------
TABLE B-9, Continued
546
561
576
591
606
621
63t>
651
666
681
696
711
726
741
FROM
.1435
.1531
. 1566
.1581
. 1 594
. 1639
.1662
.1700
. 1720
. 1726
.1754
.1759
.1784
.1801
FINAL COAL
684.82
681.47
678.36
675.27.
672.33"
668.9t>
665.96
662.81
659.72
656.61
653.54
651.02
647.89
644.78
ANALYSIS
81.09
82.12
82.50
82. 6b
82.79
83.28
83.52
83.92
84. 14
84.22
84.49
84.55
84.81
84.99
91.60
8.91
8.7a
8.59
8.39
8.20
8.05
7.88
7.73
7.58
7.42
7.28
7.13
7.01
6.38
I
o>
oo
Exp.No.56 Continued
1.525
1.4S7
1.473
1.4o7
1.4o2
I.t43
1.435
1.419
1.411
l.«*08
1.398
1.396
1.386
1.379
1.410
.735
.696
.6H1
.675
.670
.651
.642
.627
.616
.615
.6:5
.603
.593
.586
.330
.725
.72t>
.726
.727
.727
.727
.727
.727
.728
.726
.728
.728
.726
.728
.840
.C65
.065
. 0 to 5
. Ofrii
.065
.06t>
.Oo5
.C65
.065
.065
.Ot>5
.065
.065
.065
.240
15.240
15.176
15.152
15.142
15.134
15.1C3
15.089
15.063
15.050
15.045
15.028
15.024
15.008
14.997
14.580
13132
13143
13147
13149
13151
13156
13159
13163
13166
13167
13170
13170
13173
13175
12742
-------
TABLE B-9- Continued
SUMMARY OF REACTION DATA FOR S04/S- 1.500 LOWER KITTANNING, -100 MESH. EXP.N0.57 7.9% Fe, no Fe
+2
MIN
FROM
START
10
25
40
55
70
85
100
115
130
145
160
175
190
205
?220
235
250
265
280.
295
310
325
340
355
370
371
381
396
411
426
441
456
471
486
501
516
531
FE + 2/.FE
*T. RATIO
.0220
.04 30
.0450
.C5C""
.0650
.0840
.0930
.1000
.1040
.0960
.1000
.1040
.1080
.1100
.1090
. 1010
.1075
.0900
.087C
.0850
.081C
.0760
.0710
.r&60
.0620
.0620
.0791
.0837
.CRd7
.0947
.0965
.1003
.K.'iC
. 1084
.1106
,1?6S
.1175
COAL *T.
FP.£ = OF .
S(F.LEM)
785.06
78D.48
777.76
774.67
770.99
767.83
764.38
761.26
758.67
758.17
757.22
755.63
753.62
752.46
751.27
750.60
748.44
748.91
747.95
747.18
746.55
7<*5. 16
745.47
744.81
74^.36
744.36
730.46
727.06
723.53
719.75
71-J.30
712.75
7 C 4 . 9 7
7uf) .0 1
7 0 7. . 0 .->
697.61
695.07
pY^iTt CUMULATIVE
RL-MuVEO
PCT OF INIT
3.22
10.85
15.37
20.51
26.62
31.88
37.63
42.d2
47.12
47.96
49.52
52.17
55.52
57.45
59.43
60.53
64. 13
63.35
64.95
66.23
67.28
68.56
69.08
70. 17
70.92
70.92
73. ?8
73.92
74.61
75.45
75.69
76.22
7 6 . -, 9
77.32
77.62
79.84
7(3.57
KATE
PCT/HR
19.32
26.03
23.06
22.38
22.32
22.50
22.58
i.2.34
21 .75
19.84
1.8.57
17.89
17.53
16.82
16.21
15.46
15.39
14.34
13.92
13.47
13.02
12.66
12.19
11.8e>
11.50
11.47
11.54
11.20
10.89
10.t>3
10.30
10.03
9.31
9.55
9. JO
9.23
8.88
CALCULATED
TOTAL S
HT-PCT
4.215
3.963
J.blS
3.641
3,
3.
3.
255
057
2.677
2.726
2.697
2.642
2.549
2.430
361
290
251
122
150
092
046
C08
962
943
903
876
o76
789
7b6
741
710
701
6«2
653
h41
630
548
595
PYk. S
WT-PCT
3.483
,227
.074
.899
,689
.507
,305
.122
.969
,939
,883
,788
,667
.598
,526
1.486
1.354
,383
,324
,277
,238
,191
172
132
104
CLVL ANALYSr.S ST
OFG. S S04 S
HT-PCT bT-PCT
3,
3.
2,
2.
2.
2.
2.
1,
1.
1.
1.
1.
1
1
1 .
1
1
1
1
. 0 I h
.992
.966
.93b
.92t
.407
.878
.ho 5
. 6 t>4
. m
.819
.672
.676
.678
.681
.684
.687
.69C
.693
.695
.695
.696
.698
.700
.701
.702
.702
.705
.704
.705
.706
.70o
.707
.707
.708
.70S
.703
.710
.710
.711
.71 1
712
712
712
714
713
.060
.061
.061
.061
.061
.061
.062
.062
.062
.062
.062
.062
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.064
.064
.064
' . 064
.064
.064
. Co4
.064
.Gb4
.064
.064
hP-UY-ST
ASH
dT-PCT
19.765
19.4o6
19.267
19.083
13.837
16.624
18.389
16.175
17.996
17.962
17.896
17.785
17.644
17.562
17.478
17.431
17.278
17.311
17.243
17.188
17. 143
17.087
17.065
17.018
16.985
16.935
16.883
16.855
16.825
16.789
16.778
16.755
16.721
16.707
16.694
16.596
16.652
fcf
nT CuiNTcNT
BTU/LB
12316
12373
12407
1^446
12493
12533
12578
126 19
12653
12659
12672
12693
12720
12735
12751
12760
12790
12783
12796
12807
12815
12826
12830
12839
12845
12845
12865
12670
12H76
12883
12885
12339
12896
12901
12919
12909
-------
TABLE B--9. Continued
Exp.No. 57 Continued
546
561
576
591
606
621
636
651
666
681
696
711
726
741
FROM
i
?
.119C
.1229
.1228
.1278
.1303
.1342
.1353
. I 347
.1368
.12oO
.1333
.1416
.1446
.1471
FINAL COAL
691.77
683.16
685.07
681.38
678.05.
674.51
671.25
667.95
664.54
662.05
658.44
654.53
651.13
647.66
ANALYSIS
73.73
79.31
79.29
79.96
80.30
80.82
80.97
80.89
81.18
79.73
80.71
31.83
82.20
S2.52
37.00
3.66
8.48
8.26
8.12
7.95
7.81
7.64
7.46
7.31
7.C2
6.96
6.91
6.79
6.6b
1.507
1.568
1.563
U544
1.531
1.512
1.507
1.5G9
1.499
1.552
1.516
1.474
1.461
1.449
1.610
.3U
.791
.791
.76e
.753
.734
.723
.731
.720
.775
.738
.696
.632
.670
.500
.713
.713
.713
.714
.714
.714
.714
.714
.714
.713
.714
.715
.715
.715
.850
.064
.06t
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.260
16.643
16.620
16.620
16.591
16.576
16.553
16.547
16.550
16.538
16.601
16.558
16.509
16.492
16.478
16.280
12911
12915
12915
1292J
12923
12928
12929
12928
12931
12919
12927
12936
12939
12942
12887
-------
TABLE B-9. Continued
SUMMARY OF REACTION DATA FOR S04/S= 1.500 LOWER KITTANMNG. -TOO MESH. EXP.N0.58 10.8X Fe, no Fe*2
MIN
FROM
f START"
10
25
40
55
70
85
100
115
130
145
160
175
190
205
220
^ 235
r 250
265
280
295
310
325
340
355
370
371
380
390
405
420
435
450
465
480
495
510
525
FE*2/FE
WT. RATIO
.0140
.0330
.0490
.0660
.0850
.1025
.1120
.1205
.1305
.1335
.1255
.112C
.0980
.0840
.0775
.0735
.0730
.0760
.0730 .
.0640
.0580
.C560
.0550
.054C
.0530
.0530
.0729
.0757
.0836
.0968
.0932
.0988
.1027
.1070
.1123
.1139
.1170
COAL WT.
FREE OF
S(ELEM)
793.93
790.60
787.52
784.15
780.09
775.79
773.01
769.58
765.89
762.28
760.57
759.60
758.67
758.75
757.80
756.73
755.57
754.23
753.24
752.25
752.23
751.44
750.33
749.73
748.98
748.98
725.49
722.20
717.01
712.16
708.72
704.41
700.27
696.10
691.84
688.10
684.05
PYRITE CUMULATIVE
REMOVED
PCT OF INIT
2.99
7.82
12.29
17.18
23.06
29.28
33.32
38.28
43.62
48.86
51.34
52.74
54.09
53.98
55.36
56.90
58.58
60.53
61.96
63.39
63.43
64.57
66.17
67.05
68.14
68.14
70.93
71.33
72.44
74.27
73.78
74.55
75.08
75.67
76.40
76.60
77.03
RATE
PCT/HR
17.97
18.76
18.44
18.74
19.76
20.67
19.99
19.97
20.13
20.22
19.25
18.08
17.08
15.80
15.10
14.53
14.06
13.70
13.28
12.89
12.28
11.92
11.68
11.33
11.05
11.02
11.20
10.97
10.73
10.61
10.18
9.94
9.69
9.46
9.26
9.01
8.80
CALCULATED
TOTAL S PVR. S
WT-PCT WT-PCT
4.223 3.492
4.067 3.332
3.920 3.183
3.759 3.018
3.563 2.819
3.354 2.605
3.217 2.465
3.047 2.292
2.862 2.103
2.680 1.917
2.592 1.828
2.543 1.778
2.495 1.729
2.499 1.733
2.450 1.684
2.395 1.627
2.335 1.566
2.266 1.496
2.215 1.443
2.163 1.391
2.162 1.389
2.121 1.347
2.063 1.288
2.031 1.256
1.992 1.216
1.992 1.216
1.890 1.112
1.875 1.097
1.835 1.056
1.768 .987
1.766 1.006
1.757 .977
1.738 .957
1.716 .935
1.689 .907
1.682 .900
1.666 .884
COAL ANALYSES STEP-BY-STEP
OR6. S
WT-PCT
.672
.675
.677
.680
.684
.687
.690
.693
.696
.700
.701
.702
.703
.703
.704
.705
.706
.707
.708
.709
.709
.710
.711
.711
.712
.712
.714
.714
.715
.716
.716
.716
.717
.717
.718
.718
.718
S04 S
WT-PCT
.060
.060
.061
.061
.061
.062
.062
.062
.062
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
.064
ASH
WT-PCT
19.749
19.520
19.306
19.071
18.784
18.478
18.278
18.030
17.760
17.493
17.365
17.293
17.223
17.229
17.158
17.077
16.990
16.888
16.813
16.738
16.736
16.676
16.591
16.545
16.487
16.487
16.338
16.317
16.258
16.160
16.186
16.145
16.116
16.085
16.045
16.034
16.011
HT
CONTENT
BTU/LB"""
12318
12360
12399
12443
12495
12552
12589
12634
12684
12733
12757
12770
12783
12782
12795
12810
12826
12844
12858
12872
12872
12883
12899
12907
12918
12918
12945
12949
12960
12978
12973
12981
12986
12992
12999
13001
13006
-------
TABLE B-9- Continued
540
555
570
585
600
615.
630
645
660
675
690
705
720
735
750
, FROM F
*«4
PO
.1203
.1237
.1264
.1289
.1330
. 1366
.1395
.1377
.1422
.1571
.1466
.1431
.1501
.1529
.1576
INAL COAL
679.98
675.92
671.89
667.89
663.78
659.70
655.73
652.15
648.08
643.18
640.18
636.31
632.39
628.41
624.31
ANALYSIS
77.46
77.92
78.28
78.61
79.14
79.61
79.98
79.76
80.33
82.22
80.90
81.08
81.33
81.68
82.25
86.60
8.61
8.42
8.24
8.06
7.91
7.77
7.62
7.42
7.30
7.31
7.03
6.90
6.78
6.67
6.58
Exp.No.58 Continued
1.650
1.633
1.620
1.607
1.588
1.570
1.557
1.565
1.544
1.473
1.523
1.516
1.507
1.494
1.472
1.750
.867
.850
.837
.824
.804
.786
.772
.781
.759
.687
.738
.731
.721
.708
.686
.520
.718
.719
.719
.719
.719
.720
.720
.720
.720
.721
.721
.721
.721
.721
.721
.830
.064
.064
.064
.064
.064
.064
.064
.064
.064
.065
.065
.065
.065
.065
.065
.400
15.988
15.963
15.944
15.926
15.897
15.872
15.852
15.864
15.833
15.730
15.802
15.792
15.778
15.759
15.728
15.490
13010
13014
13018
13021
13027
13031
13035
13033
13038
13057
13044
13046
13048
13052
13058
12887
-------
TABLE §-». Continued
SUMMARY OF REACTION DATA FOR S04/S'
1.500 LOWER KITTANNING, - 100 MESH, EXP.N0.59 8.5% Fe, 39.8% as Fe"1
WIN
FR0.1
STA^T
1C
15
4?
55
70
65
100
115
f j a
143
160
175
i 19C
| 205
•Li 22-
V ^3>
25:
265
2oO
| 2S5
310
323
34. J
355
i 37-
37i
If-;"!
3^5 ;
H" 3
42u
«• j5
, 450
4 ' **
4o :
4 -)->
5U
! 5?f.
FF + 2/K!;
WT. kATIO
. 4C 2 "
.409J
. 4 i f r
,422'j
.4?6C
. 4340
.4400
. 44t>-:
. «t 5 0 0
.4 $3-;
.45cO
.46C-"!
.46K
.4620
.433.:
. 4o2?
.46 If-
. 45 lij
.4600
.4580
.4570"
.43=.-!
.43'JO
.*5K
. 4 4 ri i"
. 4i. SO
.46,;'
. 4?i,L
. 4 1 7 ;•
.4-i -;c
.4f;7(:
.491r
. 4Vtu
,4'-'7r
. 50vJb
,5't3r
.5-:tr
CUAL v»T.
Fn E- UP
PVfilTE CUMULATIVE
RfcMLVtD RATb
SCLFM) PC7 OF INIT
779.48 .75
776.4o 2.22
777.37
776.24
7 7 5 . C 5
77j.7^
77?. 35
17 :.99
7t J.M
767.^9 .
766. 61
765.41
764. ?3
762. SS
7fcl . e.b
760.39
7t- j. Oo
754.28
75y.34
7?. 7.77
7-37^ i 7
7 3o. 4 3
756. OS/
755.47
755. l«
755.18
7.4Z . 2t
7?«.0j
7? j.d7
71<."73
715.79
71 I.b2
707.97
7T4.11
7 J i; . 2 6
656. .66
6.55
t .40
6. 29
6.11
6.01
5. 83
5.32
6 . " 6
6.12
6.C7
6.01
5. 89
5.79
5.67
5. 5b
5.45
5.35
5.26
CALCULATED COAL ANALYSES STEP-BY-STEP
TOTAL S PYR. S ORG. S 504 S ASH HT CONTENT
wT-PCT WT-PCT
4.296 3.565
4.249 3.517
"4'. 197 3.465
4.145 3.411
4.098 3.354
4^J2"9 3.293
3.961 3.224
3.896 3.158
3.H31" 3.091
3.753 3.012
3.667 2.944
3.629 2. 885
3.572 2.827
3.511 2.765
3". 457 2.709
3.t09 2.661
3.369 2.62C
3.331 2.581
3.294 2.544
3.256 2.505
3.227 2.475
3.193 2.440
3.173 2.420
3.143
3.129
3.129
3.045
2.997
2.955
2.919
2.B95
2.871
2.854
2.836
2.618
2.8CO
2. 762
2.389
2.375
2.375
2.289
2.241
2.196
2.161"
2.137
2.112
2.094
2.C76
2.058
2. 039
2.021
WT-PCT WT-PCT
.670 .060
.671 .C60
.672 .060
.673 .060
.674 .C60
.675
.677
.678
.679
.680
.682
.683
.684
.685
.666
.687
.688
.688
.689
.690
.690
.691
.691
.692
.692
.692
.694
.694
.695
.696
.696
.697
.697
.697
.698
.698
.698
.060
.061
.061
.061
.061
.061
.061
.061
.061
.061
.062
.062
.062
.C62
.062
.062
.062
.062
.062
.062
.062
.062
.062
.062
.062
.062
.062
.062
.062
.062
.063
.063
WT-PCT
19.85
-------
TABLE, t-f. Continued
Exp.No.f9 Continued
50
555
570
585
600
615
630
645
66C
675
690
705
720
• 735
750
FROM
.5C80
.5100
.5130
.5150
.5170
.5190
.5210
. 52 30
.525C
.5260
.5280
.5300
.5320
.5340
.5360
FINAL COAL
688.87
685.14
681.38
677.86
674.22
670.57
666.90
663.22
659.57
655.97
652.53
648.89
645.37
641.84
638.33
ANALYSIS
46.33
46.67
47.16
47.51
47.85
48.18
48.52
48.85
49.18
49.35
49.68
50.00
50.33
50.66
50.98
70.49
5.15
5.05
4.97
4.87
4.78
4.70
4.62
4.54
4.47
4.39
4.32
4.26
4.19
4. 14
4.08
2.770
2.758
2.741
2.729
2.717
2.706
2.694
2.682
2.671
2.665
2.653
2.642
2.630
2.619
2.607
2.240
2.009
1.997
1.979
1.967
1.955
1.943
1.931
1.919
1.907
1.901
1.890
1.878
1.866
1.855
1.843
1.130
.699
.699
.699
.699
.700
.700
.700
.700
.700
.701
.701
.701
.701
.701
.702
.780
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.063
.330
17.551
17.533
17.506
17.488
17.471
17.453
17.435
17.418
17.400
17.392
17.374
17.357
17.339
17.322
17.305
16.250
12720
12724
12728
12732
12T35
12736
12741
12745
12748
12749
12753
12756
12759
12762
12765
12382
-------
TABLE B-9. Continued
SUMMARY OF REACTION DATA FOR S04/S= 1.500 LOWER KITTANNING, -100 MESH. EXP.N0.60 5.2% Fe, no Fe
1
in
i
MIN
FROM
START
15
3.0
45
tO
75
90~
1^5
120
is:
180
2 1 r
240
270
300
3?J
3b~
FRvJrt
FE«-2/Fi-
WT. KATI
.0731
.0895
.1039
.1134
. 1222
.1298"
. 1353
. 1399
. 1512
. 1 579
. 164S
. 1708
. 175h
. 1793
. ld2U
.Io91
F I.\AL" LJA
COAL WT.
f-Kzi. HF
'D S ( c L £ M )
923.39
9 lo. 45
910.03
9 C 5 . 1 2
90U.35
H 93.91
«92.0fc
36rt .47
6 » 3 . 0 4
87H.o7
d74 . ^2
870.65"
867.02
663.65
••3e>0. Jt>
o 3 o . 30
L _ANALYS I s
PYRITE CUMULATIVE
REMuVtl)
r>CT UP I NIT
30.61
37.56
43. 6S
47.71
51.45
54 . 7 1
57.07
59.05
63. 86
66. 75
6S.75
72.33
74.33
75.93
77.51
80.25
82.66
RATE
PCT/HR
122.45
75.13
5d.26
47.71
41. 16
36.47
32.61
29.52
25. 54
22.25
19.93
16.08
16.53
15.20
14.09
13.38
CALCULATED COAL ANALYSES STEP-BY-STEP
TOTAL S
wT-PCT
3.292
3.052
2.839
2.698
2.566
2.450
2. J66
2.296
2.123
2.019
1 .909
1.816
1.741
1.682
1.026
1.525
1.680
PYR. S
WT-PCT
2.546
2.302
2.085
1.942
1.608
1.691
1.606
1.534
1.356
1.253
1.142
1.047
.970
.911
.854
.751
.660
ORG. S
HT-PCT'
.685
.688
. 6 91
.693
.695
".697
.698
.699
.701
.703
.705
.706
.707
.708
.709
.710
.770
S04 S
WT-PCT
.061
.062
.062
.C62
.062
.062
.063
.063
.063
.063
.063
.063
.063
.063
.063
.064
.250
ASH
*T-"PCT
Id. 831
18.585
18.365
18.220
18.084
17.965
17.879
17.806
17.628
17.521
17.408
17.312
17.235
17.174
17.117
17.013
16.920
HT CONTENT
BTU/LB
12*99
12548
12591
12619
12646
12669
12686
12700
12735
12756
12778
12797
12812
12824
12835
12856
12895
-------
TABLE g-JO. EFFECT OF CONCURRENT REAGENT REGENERATION ON ABOVE AMBIENT PRESSURE PYRITIC SULFUR
EXTRACTION FROM COAL
SUMMARY OF REACTION DATA FOR S04/S- 1.500 LOWER KITTANNING. -1/4 X +10 MESH, N2. 120C. EXP.N0.61 5.IX Fe. no Fe"1
MN
START
4?
50
60
70
HO
!•) i
1 IV
Its ."
j 21C
225
24'J
F K f '•',
FE+2/F -
* T . ;< A T i a
. 0 6 C. s
.0711
.07'J3
.rB75
.0943
. KJV
. 10-Jt
.1.154
. U-.r
. 1 ' . i
. . i io?
.!•.:!»
. 1 i - *
. 1 c j o
. 1733
. 1799
JL.LS27
F J:\1AL C'.iAL
FRtc OF
S ( L L £ M (
476.27
4 74. Hi
473. 6M
473. 17
4 / 2 . b I
^ 7^.07
- f L . 7 3
••n .t*
4 7 0 . ; 1
<• 6 V . c . j
4o ;. ^.d
4 o ••) . J o
467.30
4o7. 12
"i-N'ALYSIS
PYft ITE
R tMGVtf)
PCT OF 1NIT
6.31
7.37
9.07
>t . 7 7
11.33
11.92
12.37
1 3 . J 3
1 .1. 3 I
14.00
14.71
15.11
15. ?J
16. 7 :
17.06
17.62
18.25
lri.52
19/39
CLMULAT I VE
RATE
'PC'T/HR
37.89
22.J^
16.46
13.60
i\..JJ_
10.45"
9.71
3.94
,25
•A7
,00
,54
,15
5.79
5.57
5.25
5.04
4.H7
4.63
CALCULATED COAL ANALYSES STEP-BY-STEP
TOTAL S
UT-PCT
4.933
4.391
4.857
4.d24
4.796
4.769
4.733
4.709
4.691
4 .t>64
4 .646
4.626
4.597
4.570
4.547
4.516
4.501
4.478
4.452
4.441
4." 2 30
PYfc. S
WT-PCT
4.42B
4.3d5
4.351
4.31 7
4.238
4/260
4.224
4.20C
4.1B1
4. 154
4.135
4.115
4.085
4.057
4.C34
4. 002
3.9ri7
3.964
3.938
3.926
3.890
ORG. S
rfT-PCT
.364
.364
.365
.365
.366
.366
.366
.367
.367
.367
.363
.363
.368
.369
.369
.370
.370
.370
.371
.371
.220
SU4 S
WT-PCT
.141
.142
.142
.142
.142
."142
.143
.143
.143
.143
.143
.143
.143
.143
.144
.144
. 144
.144
.144
.144
.120
ASH
WT-PCT
23.795
23.700
23.622
23.546
23.482
23.420
23.339
23.285
23.243
23.181
23.139
23.093
23.027
22.965
22.914
22.842
22.808
22.756
22.697
22.672
22.590
HT CONTENT
BTU/LB
11334
11350
11363
11376
11387
11397
11411
11420
11427
11437
11444
11452
11463
11474
11482
11494
11500
""11509"
11519
11523
11446
-------
TABLE
Continued
SIMMRV OF REACTION DATA FOR S04/S- 1.500 LOWER KITTAMNIN6. -1/4 X HO MESH. N2. 140C. EWMW.62 5.0* Ft, no F«
HIN
FROM
START
10
20
30
40
50
60
70
80
. 90
100
110
120
135
150
165
180
195
210
225
240
FROM
FE+2/FE
WT. RATIO
.0613
.0711
.0797
.0876
.0959
.1026
.1098
.1145
.1215
.1261
.1294
.1376
.1456
.154B
.161^
. 1679
.1724
. 18Gb
.1866
.19T6
FINAL COAL
COAL WT.
FPFE OF
SIELEMI
500.88
500.39
499.95
499.55
499.13
498.80
498.43
498.20
497.86
497.53
497.47
497.06
496.68
496.24
495.92
495.61
^95.40
495.01
494.73
494.54
ANALYSIS
PYRITE CUMULATIVE
REMOVED RATE
PCT UF INIT PCT/HR
5.90 35.39
6.84 20.53
7.67
8.43
9.22
9.85
10.54
10.98
11.63
12.25
12.37
13.14
13.85
14.70
15.29
15.88
16.29
17.02
17.55
17.90
20.55
15.33
12.64
11.07
9.85
9.03
8.23
7.75
7.35
6.75
6.57
6.16
5.88
5.56
5.29
5.01
4.86
4.68
4.48
CALCULATED COAL ANALYSES STEP-BY-STEP
TOTAL S PYR. S ORG. S S04 S ASH HT CONTENT
WT-PCT
4.934
4.895
4.860
4.828
4.795
4.768
4.739
4.721
4.693
4.667
4.662
4.629
4.598
4.563
4.537
4.512
4.494
4.463
4.440
4.425
5.070
WT-PCT WT-PCT WT-PCT
4.431 .362 .141
4.391 .363 .141
4.356
4.324
4.290
4.263
4.234
4.215
4.187
4.160
4.155
4.122
4.091
4.055
4.029
4.003
3.986
3.954
3.931
3.916
3.800
.363
.363
.364
.364
.364
.364
.364
.365
.365
.365
.365
.366
.366
.366
.366
.367
.367
.367
.460
.141
.141
.141
.141
.142
.142
.142
.142
.142
.142
.142
.142
.142
.142
.142
.143
.143
.143
.810
WT-PCT
24.063
24.015
23.974
23.935
23.895
23.862
23.827
23.805
23.771
23.740
23.734
23.694
23.657
23.614
23.583
23.553
23.532
23.494
23.466
23.448
23.310
BTU/LB
11293
11302
11310
11317
11324
11330
11337
11341
11347
11353
11354
11361
11368
11376
11381
11387
11391
11398
11403
11406
11390
-------
TABLE.§.10. Continued.
SWMARY OF REACTION DATA FOR S04/S- 1.500 LOWER KITTANNING. -100 MESH. N2. 130C. EXP.N0.63 4.9% Ft. no Ft1
HIM
FROM
START
30
40
50
60
70
90
90
100
110
120
133
15C
165
18-0
195
210
225
240
FRO*
FE+2/FE
WT. RATIO
.1671
.1796
.Id59
.195C
.2051
.2214
.2359
.2469
.2574
.2649
.2710
.2803
. .2875
.2816
.2757
.27otJ
.2800
FINAL COAL
COAL WT
FREF OF
S(ELEM)
504.12
500.00
495.73
491.33
487.75
484.05
480.07
475.35
470.93
466.54
t63.07
459. 3n
455.54
451.05
447.23
443.46
439.30
435.07
ANALYSIS
PYRITE
REMOVED
CUMULATIVE
RATF
PCT OF INIT PCT/HR
20.04 40.07
21.56 32.35
22.34
23.44
24.04
24.68
26.69
28.48
29.84
31.13
32.06
32.82
33.98
34.87
34.16
33.41
33.54
33.93
81.00
. -\
26.80
23.44
20.60
18.51
17.79
17.09
16.27
15.56
14.25
13.13
12.36
11.62
10.51
9.55
8.94
8.48
CALCULATED COAL ANALYS
TOTAL S PYR. S ORG. S SC
WT-PCT
3.664
3.613
3.587
3.550
3.530
3.509
3.441
3.381
3.335
3.291
3.259
3.233
3.194
3.163
3.188
3.213
3.209
3.195
2.85
WT-PCT WT-PCT Wl
2.921 .682
2.869 .683
2.843
2.805
2.785
2.763
2.694
2.632
2.585
2.541
2.508
2.482
2.442
2.411
2.436
2.462
2.457
2.443
0.68-
.683
.684
.684
.685
.686
.687
.688
.689
.689
.690
.690
.691
.690
.690
.690
.690
.890
S
WT-PCT"
.061
.061
.061
.061
.061
~.06i
.061
.062
.062
.062
_?9A2.
.062
.062
.062
.062
.062
.062
.062
1.480
'Possible analysis error. Additional sample for recheck analysis was"hot available?
ASH
WT-PCT
18.937
18.863
18.826
18.772
18.743
18.712
18.614
18.526
18.459
18.396
18.349
18.312
18.255
18.210
18.246
18.283
18.276
18.257
l.*9?1
HT CONTENT
BTU/LB
12467
12481
12488
12498
12503
12509
12527
12543
12556
12567
12576
12583
12593
12601
12595
12588
12589
12593
£M6*
A ~* •"" "*
"i
-------
TABLE B-10. Continued
SIMMftY OF REACTION DATA FOR S04/S- 1.500 LOWER UTTAWJING. -100 MESH, 02, 130C. EiP.NO.64 5.1X Fc. no Fe*2
MIN
FROM
START
10
20
40
50
60
70
30
90
1C"!
110
120
FROM
FE>2/Ft
WT. RATIO
.0928
.0754
.Ot3C
.05o;
.C506
.0481
.0461
.C664
.05^1
.0665
.0670
FINAL COAL
CC,AL K/T
Fr?r OF
S(ELEM)
530.82
528.05
52J.91
517.33
513.69
509.52
504.47
500. 78
496. 15
492.05
487.89
ANALYSIS
PYRITE CUMULATIVE
PtMuVED RATE
PCT OF 1NIT
11.17
9.0o
7.56
6.75
6.C7
5.77
5.53
7.96
6.97
^8.C9
8.04
84.00
;' -'' •; •
PCT/HR
67.03
27.19
15.13
10.12
7.26
5.77
4.74
5.97
4.65
4.85
4.35
4.02
CALCULATED
TOTAL S PYR. S
WT-PCT
3.953
4.023
4.073"
4.099
4.122
4.132
4.139
4.059
4 ."C 9 2
4.055
4.059
4.057
2.36
WT-PCT
3.217
3.288
3.338
3.365
3.388
3.398
3.406
3.325
3.358
3.321
3.324
3.322
0.56
--* /
COAL ANALYSES STEP-BY-STEP
ORG. S 504 S ASH HT CONTENT
WT-PCT WT-PCT WT-PCT
.676 .061 19.437
.675 .060 19.523
.674 .060 19.584
.674 .060 19.617
.673 .060 19.645
.673
.673
.674
.674
.674
.674
.674
.830
_ . I _ ^
.060
.060
.060
.060
.060
.060
.060
.97
. -.T
19.657
19.667
19.568
19.608
19.563
19.567
19.565
17.480
11 '.'.'•
BTU/LB
12378
12361
12350
12344
12338
12336
12334
12353
12345
12354
12353
12353
lists -
^ j —
-------
TABLE B-ll. Sulfate to Sulfur Ratio Computations
The "sulfate to sulfur" ratio
R = SOt* = Sulfate sulfur from removed pyrite /,x
s s~°~ Elemental sulfur from removed pyrite * '
was computed directly from the recovered sulfate (spent ferric
chloride solutions and wash water) and elemental sulfur (spent
toluene residue upon distillation) in the ferric chloride system
(ferric chloride extractions of coal). In the ferric sulfate
system, the produced sulfate from coal pyrite oxidation was over-
whelmed by the sulfate of the reagent and its accurate determina-
tion proved impossible. Thus, R was indirectly determined from
iron forms data (ferric ion consumed or ferrous ion produced)
and the elemental sulfur recovered from toluene. The expression
used (quantities in moles) was
P _ (Fe*3 - S°)/7 (Fe+2 - 1.5S°)/7.5 m
Ks " So ' 50 u'
and it was derived from the chemistry of the process
Fe+3 +0.5 FeS2 = 1.5 Fe+2 + S°
7Fe+3 +0.5 FeS2 + 4H20 = 7.5 Fe+2 + SO; + 8H+
which shows that each mole of formed elemental sulfur requires
one mole of Fe+3 to be consumed and produces 1.5 moles of Fe+2;
the corresponding quantities for the formation of one mole sulfate
are 7 moles Fe+3 (consumed) and 7.5 moles Fe+2 (produced).
Thus, the quantities
(Fe+3 - S°)/7 and (Fe+2 - 1.5S°)/7.5 (3)
represent the sulfate formed from the oxidation of pyrite by
ferric ion. The assumption is made that side reactions consuming
ferric ion or producing ferrous ion or sulfate do not take place.
For example, Expression (2) can not be applied to Illinois No.5 coal
which exhibits some reaction of ferric ion with species other than
pyrite (probably with the coal matrix). It was found valid for
Lower Kittanning coal.
-80-
-------
TABLE B-ll. Continued
The R values derived from Expression (2) were checked
against
R _ ASp - S° R _ ASt. (ASn
K - or K ^-
where
A = change in indicated quantity, before-after coal processing
Sp = pyritic sulfur in coal
St = total sulfur in coal
S0 = organic sulfur in coal
SO^ = sulfate sulfur in coal
S° = elemental sulfur produced from pyrite
Expression (4) utilizes total sulfur and sulfur forms analyses of
starting and processed coal as well as the recovered elemental
sulfur, S°.
-81-
-------
BIBLIOGRAPHIC DATA
SHEET
1. Report No.
3. Recipient's Accession No.
4. Title and Subtitle
Chemical Desulfurization of Coal; Report of Bench-Scale
Developments, Volume 2
5- Report Date
February 1973
6.
7. Author(s)
W. Hamersma, E.Koutsoukos, M.Kraft, R.Meyers,
8. Performing Organization Rept.
No.
-———:—C. .Oplo., and L Van Nice
9. Performing Organization TJame and Address
Systems Group of TRW, Inc.
One Space Park
Redondo Beach, California 9027R
10. Project/Task/Work Unit No.
11. Contract /Gram No.
EHSD 71-7
12. Sponsoring Organization Name and Address
EPA, Office of Research and Monitoring
Control Systems Laboratory/NERC-RTP
Research Triangle Park, North Carolina 27711
13. Type of Report & Period
Covered
Final
14.
15. Supplementary Notes
16. Abstracts Bench-scale and laboratory tests were conducted for chemical removal of sulfur
(S) from coal. Approximately 100$ of pyritic S was removed, using aqueous ferric salt
solutions which, for the four coals tested, corresponded to an absolute removal of
l-'-i. 5^ by coal weight of S. The heat content of the coal increased and the ash content
decreased as a result of the pyrite removal. The pyritic S was removed from the coal
as elemental S (ko mole <$,} and iron sulfate (60 mole %} . Process operating temperature
of 50-130C, pressures of 1-10 atm, residence times of l-lb hrs. and coal top sizes
from l/J'-in. to 100 mesh were evaluated. Preliminary process design and cost
estimation for a 100-ton/hr coal desul furization plant indicated a cost of $?--;/ton
of coal for removal of pyritic S from unwashed Appalachian or Eastern Interior Basin
coals, depending on the amount of S removal required to produce a fuel which will
comply with air quality regulations for fuel combustion and on any excess ferric ion
consumption. Results of organic S removal tests indicate that additional studies are
necessary before process feasibility can be assessed. __
17. Key Words and Document Analysis. 17o. Descriptors
Air pollution
*Desulfurization
*Coal preparation
Chemical cleaning
Combustion products
Sulfur compounds
' Cost estimates
17b. Identifiers/Open-Ended Terms
Air pollution control
Stationary sources
*Meyers process
17e. COSATI Field/Group
18. Availability Statement
Unlimited
19. Security Class (This
Report)
UNCLASSIFIED
20. Security Class (This
Page
UNCLASSIFIED
21. No. of Pages
22. Price
FORM NTIS-33 IREV. 3-72)
U5COMM-DC MBS2-P72
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