&EFK United States Environmental Protection Agency AJT Office of Air Quality Planning and Standards Research Triangle Park NC 27711 EMB Report 80-WFB-5 May 1980 Nonfossil Fueled Boilers Emission Test Report St. Joe Paper Company Port St. Joe, Florida ------- NONFOSSIL FUELED BOILERS Emission Test Report St. Joe Paper Company Port St. Joe, Florida Project No.: 80-WFB-5 Prepared for Environmental Protection Agency Office of Air Quality Planning and Standards Emission Measurement Branch Research Triangle Park North Carolina 27711 by James A. Peters and M. Timothy Thalman Contract 68-02-2818, Work Assignment No. 25 May 1980 MONSANTO RESEARCH CORPORATION DAYTON LABORATORY 1515 Nicholas Road Dayton, Ohio 45407 ------- TABLE OF CONTENTS Figures iv Tables v 1. Introduction 1 2. Summary of Results 2 3. Process Description 18 4. Location of Sampling Points 20 5. Sampling and Analytical Methods 23 APPENDICES A. Complete emission results A-l B. Field data sheets B-l C. Analytical data sheets C-l D. BaP field and analytical results D-l E. Boiler operation report E-l F. Project participants F-l ill ------- FIGURES Number Page 1 Diagram of venturi scrubber control equipment, Boiler #4, St. Joe Paper Company 19 2 Venturi scrubber inlet sampling location, St. Joe Paper Company 21 3 Venturi scrubber outlet sampling location, St. Joe Paper Company 22 4 BaP sample train 25 5 Battelle resin trap for BaP sample train. ... 26 IV ------- TABLES Number Page 1 St. Joe Paper Company Sampling and Analysis Schedule 3 2 St. Joe Paper Company Particulate Emission Data and Stack Gas Parameters, Port St. Joe, Florida, January 17-23, 1980 (English Units). . 5 3 St. Joe Paper Company Particulate Emission Data and Stack Gas Parameters, Port St. Joe, Florida, January 17-23, 1980 (Metric Units) . . 7 4 Summary of Integrated Gas Analysis Results, St. Joe Paper Company, Port St. Joe, Florida, January 17-23, 1980 9 5 Summary of BaP Inlet Test Results, St. Joe Paper Company, Port St. Joe, Florida, January 17-23, 1980 10 6 Summary of BaP Outlet Test Results, St. Joe Paper Company, Port St. Joe, Florida, January 17-23, 1980 11 7 Summary of Andersen Particle Sizing Results, St. Joe Paper Company, Port St. Joe, Florida, January 16-23, 1980 12 8 Summary of NO Emissions (Scrubber Outlet), St. Joe Paper Company, Port St. Joe, Florida, January 17-23, 1980 15 9 Summary of S02 Results, St. Joe Paper Company, Port St. Joe, Florida, January 17-23, 1980. . . 16 10 Summary of Bark Fuel Analyses, St. Joe Paper Company, Port St. Joe, Florida, January 17-23, 1980 16 11 Summary of Average Boiler Operating Conditions During Testing, St. Joe Paper Company, Port St. Joe, Florida, January 17-23, 1980 17 ------- SECTION 1 INTRODUCTION The St. Joe Paper Company in Port St. Joe, Florida, was emission tested by Monsanto^Research Corporation (MRC) for the U.S. Envi- ronmental Protection Agency (EPA) under Contract Number 68-02-2818, Work Assignment Number 25. The objective of the sampling program was to obtain emissions data from well-controlled sources for the development of new source performance standards for the nonfossil fuel-fired boiler industry- Gaseous, particulate and benzo-alpha-pyrene (BaP) emissions were determined simultaneously at the inlet and outlet of the venturi scrubber unit serving the bark-fired number four boiler. The field test work was monitored by Dan Bivins, Field Testing Sec- tion, Emission Measurement Branch, EPA. The sampling conducted by MRC was directed by M. Timothy Thalman as team leader. The field testing conducted by TRW, Inc. for BaP emissions was led by James R. McReynolds. The collection methods employed were EPA Methods 1, 2, 3, 4, 5, 6, 7 and 9, with particulate sizing by Andersen cascade impactor and BaP collection via a modified EPA Method 5 train with a Battelle trap loaded with XAD-2 resin. The BaP samples collected were analyzed using a fluorescence spectro- photometric procedure. The sampling at the Port St. Joe site was performed by MRC during January 16-17 and 21-24, 1980; and by TRW during January 18-21, 1980. Two levels of venturi scrubber pressure conditions were tested, three test runs at each level. Quality assurance/quality control in the sampling area covered such activities as instrument calibration, using standard or approved sampling methods, chain-of-custody procedures, and pro- tocols for the recording and calculation of data. QA/QC in the analysis area involved using only validated analysis methods, periodic operator QC checking and training, sample QC by the use of splits, reference standards, and spikes, and interlaboratory audits. ------- SECTION 2 SUMMARY OF RESULTS In this emission test, Boiler #4 venturi scrubber inlet and outlet locations were sampled simultaneously for particulates and BaP; also, two distinctly different scrubber pressure conditions were maintained by plant operators. Test run numbers 1 through 3 were taken at a scrubber pressure drop of 8 in. H2O; while test run numbers 4 through 6 were at a scrubber pressure drop of 13.5 in. H20. For BaP samples, run numbers BaP-1 through BaP-3 were taken at a scrubber pressure drop of 8 in H2O pressure drop. Pollutants which were measured for this emission test were partic- ulate matter, BaP, particle size, C02 , CO, SO2, NO and plume opacity. Table 1 presents the sampling and analysis schedule in condensed form. Equipment setup for the emission test began on January 16. The first particulate emission test was performed on January 17. It was interrupted for over two hours due to plant problems with the venturi pressure drop, but otherwise proceeded normally- Average steam output of Boiler #4 during testing was 101,000 Ib/hr. On January 18 the first BaP emission test was performed. Average steam output was 100,000 Ib/hr, and no difficulties were encount- ered. The bark feed rate was lowest during this test. The second and third BaP tests were run on January 19, completing the three BaP emission runs at a scrubber pressure drop of 8 in. H2O. Average steam outputs were 106,000 Ib/hr and 100,000 Ib/hr, respectively. The fourth and fifth BaP tests were run on January 20, at a scrubber pressure drop of 13.5 in. H20. Average steam outputs were 103,000 Ib/hr and 108,000 Ib/hr, respectively. Near the end of the fourth BaP run a decrease in steam production was noted due to a switch from burning sawdust to bark. The boiler operator increased the bark feed rate to compensate and steam production increased to previous levels. On January 21 the sixth BaP run was completed, and the third run at 13.5 in. H20 scrubber pressure was finished. Average steam output was 104,000 Ib/hr. ------- TABLE 1. ST. JOE PAPER COMPANY SAMPLING AND ANALYSIS SCHEDULE Sampling site Scrubber inlet Scrubber inlet Scrubber inlet Scrubber inlet Scrubber outlet Scrubber outlet Scrubber outlet Scrubber outlet Scrubber inlet and outlet Scrubber outlet Scrubber outlet Boiler feed conveyor Total number of samples 6 6 6 6 6 6 6 6 3 3 runs, 4 samples each 6 6 samples. 2 fuel analyses each Sample type Particu- late matter Particle- size dis- tribution Integrated gas analysis BaP Particu- late matter Particle- size dis- tribution Integrated gas analysis BaP S02 NO X Opacity ASTM Minimum Sampling sampling method time EPA 5 60 min Andersen EPA 3 Modified 60 min EPA 5 EPA 5 60 min Andersen EPA 3 Modified 60 min EPA 5 EPA 6, Same as option 2 Method 5 EPA 7 15 min intervals EPA 9 Initial analysis Type Method C02, 02, EPA 3 CO Fluores- cence spectro- photom- etry C02, 02, EPA 3 CO Fluores- cence spectro- photom- etry Ultimate ASTM analysis and heat- ing value ------- Also, on January 21 the second particulate emission test was per- formed. The scrubber pressure drop was lowered to 8 in. H2O. Average steam output was 99,000 Ib/hr. The third and fourth particulate emission tests were run on January 22. Test run #3 was conducted at a scrubber pressure drop of 8 in. H20, and test run #4 was at 13.5 in. H2O. During the final 10 minutes of run #4 the venturi pressure drop slipped to 12.5 in. H20. Average steam outputs were 101,000 Ib/hr and 102,000 Ib/hr, respectively. On January 23 the fifth and sixth particulate emission tests were completed, the last two runs at 13.5 in. H2O scrubber pressure. Average steam outputs were 104,000 Ib/hr and 108,000 Ib/hr, respectively. For the BaP tests, the inlet and outlet locations were sampled simultaneously at forty-eight points for three minutes a point. The particulate emission tests were conducted similarly, except that two minutes per sampling point were used for a total of 96 minutes per run. Tables 2 and 3 summarize the data for particulate emissions and stack gas parameters. The first test run at the scrubber inlet was well outside of isokinetic variation and is not included in the averages for inlet runs. The sample line apparently had plugged because very little sample volume was pulled during the first half of the run. Also, the measured stack moisture was lower for run 1-1. Run 2-1 had a malfunctioning stack temperature thermocouple which was discovered and corrections made. All other runs were made without any problems. The venturi scrubber unit demonstrated an average particulate removal efficiency of 92.4% at 8 in. H20 pressure drop, and 94.4% at 13.5 in. H2O. Integrated gas analysis results are given in Table 4. No CO was detected in any test run at either inlet or outlet location. Results of emission testing for BaP are given in Table 5 (scrubber inlet) and Table 6 (scrubber outlet). The emissions reported were near the minimum detectable limit of the method of analysis, which is 0.0001 |jg/mL of extract. The analysis method originally chosen for the emission test was intended to be thin layer chromatography separation and measurement by scanning in-situ with a scanning attachment for a fluorescence spectrophotometer, but this method lacked the required sensitivity. The method used instead, narrow slit width fluorescence spectrophotometry, is a relative intensity technique relying on a curve plotted from standards. All of the BaP samples analyzed were at or near the origin of the standards curves, which led the emission rates reported to be very low, less than 0.00001 Ib/hr BaP- Average emissions at the scrubber outlet are shown to be higher than those at the scrubber inlet, which indicates that analysis results are near minimum limits. ------- TABLE 2. ST. JOE PAPER COMPANY PARTICULATE EMISSION DATA AND STACK GAS PARAMETERS, PORT ST. JOE, FLORIDA, JANUARY 17-23, 1980 (ENGLISH UNITS) Run number Date Time, min Flow, dscfm Stack temp- Emissions erature, H20, Isokinetic, °F % % gr/dscf Actual Ib/hr Ib/mm Btu Corrected, 12% C02 gr/dscf Scrubber inlet (8 in. H20 scrubber pressure) 1 2 Average3 Scrubber outlet (8 in. H20 scrubber pressure) 1 2 3 Average 1/17/80 1/21/80 1/22/80 96 96 96 49,294 41,191 40,693 40,942 380 372 375 374 13.05 18.11 20.97 19.54 1/17/80 1/21/80 1/22/80 96 96 96 60,156 56,717 56,788 57,887 143 140 142 142 21.26 19.65 20.25 20.39 50.1 97.4 101.5 99.6 95.2 97.1 0.4799 202.75 1.464 0.6399 0.3161 111.6 0.827 0.4079 0.6046 210.9 1.533 0.8848 0.4604 161.3 1.180 0.6464 0.0250 0.0255 0.0232 0.0246 12.9 0.093 0.0370 12.4 0.092 0.0397 11.3 0.082 0.0428 12.2 0.089 0.0398 (continued) ------- TABLE 2 (continued) Run number Scrubber inlet (13.5 in. H20 scrubber pressure) 4 5 6 Average Scrubber outlet (13.5 in. H20 scrubber pressure) 4 5 6 Average Date 1/22/80 1/23/80 1/23/80 1/22/80 1/23/80 1/23/80 Time, min 96 96 96 96 96 96 Stack temp- Flow, erature dscfm °F 43,651 32,420 46,866 40,979 60,254 57,172 54,237 57,221 373 377 379 376 143 144 146 144 Emissions , H20, Isokinetic, % % 19.33 20.11 20.09 19.84 21.34 22.59 23.43 22.45 101.4 104.9 104.0 100.1 97.3 99.3 gr/dscf 1 0 0 0 0 0 0 0 .0452 .4232 .6702 .7129 .0401 .0247 .0230 .0293 Actual Ib/hr 391.0 117.6 269.3 259.3 20.7 12.1 10.7 14.5 Ib/mm Btu 2.810 0.824 1.818 1.817 0.149 0.085 0.072 0.102 Corrected, 12% C02 gr/dscf 1.3783 0.5706 0.8936 0.9475 0.0587 0.0502 0.0452 0.0514 aAverage is based on runs 2 and 3 only. ------- TABLE 3. ST. JOE PAPER COMPANY PARTICULATE EMISSION DATA AND STACK GAS PARAMETERS, PORT ST. JOE, FLORIDA, JANUARY 17-23, 1980 (METRIC UNITS) Stack Emissions temper- Time, Flow, ature, H20, Isokinetic, Actual Run number Date min dncmpm °C % % gr/dncm kg/hr kg/GJ Corrected, 12% C02 gr/dncm Scrubber inlet (8 in. H20 scrubber pressure) 1 1/17/80 96 2 1/21/80 96 3 1/22/80 96 Average Scrubber outlet (8 in. H20 scrubber pressure) 1 1/17/80 96 2 1/21/80 96 3 1/22/80 96 Average 1,396 1,167 1,152 1,160 194 189 191 190 13.05 18.11 20.97 19.54 1,704 1,606 1,608 1,639 61 60 61 61 50.1 97.4 101.5 99.6 95.2 97.1 1.0985 0.7235 1.3839 92.0 50.6 95.6 0.630 0.355 0.659 1.4647 0.9335 2.0252 1.0537 0.0572 0.0585 0.0532 0.0563 73.1 0.507 1.4794 5.8 5.6 5.1 0.040 0.039 0.035 0.0847 0.09.2 0.0982 5.5 0.038 0.0914 (continued) ------- TABLE 3 (continued) oo Run number Scrubber inlet (13.5 in. H20 scrubber pressure) 4 5 6 Average Scrubber outlet (13.5 in. H20 scrubber pressure) 4 5 6 Average Time, Date min 1/22/80 96 1/23/80 96 1/23/80 96 1/22/80 96 1/23/80 96 1/23/80 96 Flow, dncmpm 1, 1, 1, 1, 1, 1, 1, 236 918 327 160 706 619 536 620 Stack temper- ature, °C 190 192 193 192 62 62 63 62 Emissions H20, Isokinetic, % % gr/dncm 19 20 20 19 21 22 23 22 .33 .11 .09 .84 .34 .59 .43 .45 101.4 2 104.9 0 104.0 1 1 100.1 0 97.3 0 99.3 0 0 .3923 .9686 .5346 .6318 .0918 .0566 .0526 .0670 Actual kg/hr 177.3 53.3 122.1 117.6 9.4 5.5 4.8 6.6 kg/GJ 1.208 0.354 0.781 0.781 0.064 0.037 0.031 0.044 Corrected, 12% C02 gr/dncm 3.1547 1.3060 2.0461 2.1689 0 . 1343 0.1151 0.1035 0.1176 Average is based on runs 2 and 3 only. ------- TABLE 4. SUMMARY OF INTEGRATED GAS ANALYSIS RESULTS, ST. JOE PAPER COMPANY, PORT ST. JOE, FLORIDA, JANUARY 17-23, 1980 Run CO2, CO, O2, N2, Molecular weight, number Date % % % % Ib/lb-mole Scrubber inlet (8 in. H20 pressure drop) 1 2 3 Average 1/17 1/21 1/22 9.0 9.3 8.2 8.8 0.0 0.0 0.0 0.0 77.1 76.8 77.4 77.1 Scrubber outlet (8 in. H20 pressure drop) 1 2 3 Average 1/17 1/21 1/22 8.1 7.7 6.5 7.4 0.0 0.0 0.0 0.0 Scrubber inlet (13.5 in. H20 pressure drop) 4 5 6 Average 1/22 1/23 1/23 9.1 8.9 9.0 9.0 0.0 0.0 0.0 0.0 30.1 30.0 30.1 30.1 Scrubber outlet (13.5 in. H20 pressure drop) 4 5 6 Average 1/22 1/23 1/23 8 5 6 6 .2 .9 .1 .7 0 0 0 0 .0 .0 .0 .0 14 14 15 14 .6 .6 .1 .9 76 79 78 78 .8 .4 .8 .3 29 29 29 29 .9 .5 .6 .7 Andersen particle sizing results are presented in Table 7. Four of the inlet tests were outside of isokinetic variation, but sampling times were only five minutes at the inlet location due to heavy particulate loadings. Test runs for NO emissions were performed only at the scrubber outlet and only It the normal scrubber pressure drop of 8 in. H2O. Samples for NO emissions were collected in the afternate port during particufate emission testing and results are presented in Table 8. Samples for S02 emissions were taken concurrently with particulate emission runs by using the back half of the Method 5 train. Scrubber inlet and outlet locations were sampled only when the scrubber Ap was 8 in. H20. Due to the very low sulfur content of ------- TABLE 5. SUMMARY OF BaP INLET TEST RESULTS, ST. JOE PAPER COMPANY, PORT ST. JOE, FLORIDA, JANUARY 17-23, 1980 Test # Date Time Meter volume, dscf Meter volume, dscm Stack flow, acfm Stack flow, dscfm Stack flow, dscmm Stack temperature, °F Percent moisture Percent isokinetic BaP, Ib/dscf BaP, Ib/hr BaP, Ib/mm Btu BaP , mg/dscm BaP , kg/hr BaP, lb/(8,760 hr) yr SJI - 1 1/18/80 0930-1227 107.984 3.053 160,334 86,680 2,453.0 377.3 17.1 92.5 3.0xlO~12 1.6xlO"5 l.lxlO"7 4.90xlO~5 7.2xlO~6 0.14 SJI - 2 1/19/80 1000-1311 74.078 2.096 139,108 73,190 2,071.3 384.2 18.2 101.2 0.00 0.00 0.00 0.00 0.00 0.00 SJI - 3 1/19/80 1515-1912 83.329 2.358 150,839 84,073 2,379.3 364.5 15.3 102.3 0.4xlO~12 0.2xlO~5 1.46xlO"8 0.66xlO"5 0.9xlO"6 0.02 SJI - 4 1/20/80 1045-1342 94.210 2.666 167,491 92,399 2,614.9 359.1 17.9 101.3 0.6xlO"12 0.3xlO~5 2.13X10"8 1.12xlO~5 1.5xlO~6 0.03 SJI - 5 1/20/80 1545-1842 77.533 2.194 139,745 76,136 2,154.7 356.8 19.1 101.2 0.4xlO~12 0.2xlO~5 1.35X10"8 0.68X10"5 0.8xlO~6 0.02 SJI - 6 1/21/80 0900-1157 84.936 2.404 154,840 84,962 2,404.4 358.0 18.4 99.5 0.7xlO"12 0.4xlO"5 2.82xlO"8 1.14xlO~5 1.6xlO~6 0.04 Average Inlet 86.95 2.400 152,060 82,907 2,346.3 366.6 17.7 99.7 0.85xlO"12 0.45xlO~5 3.24xlO"8 1.42X10"5 2.0xlO"6 0.04 ------- TABLE 6. SUMMARY OF BaP OUTLET TEST RESULTS, ST. JOE PAPER COMPANY, PORT ST. JOE, FLORIDA, JANUARY 17-23, 1980 Test # Date Time Meter volume, dscf Meter volume, dscm Stack flow, acfm Stack flow, dscfm Stack flow, dscmm Stack temperature, °F Percent moisture Percent isokinetic BaP, Ib/dscf BaP, Ib/hr BaP, Ib/mm Btu BaP , mg/dscm BaP , kg/hr BaP, lb/(8,760 hr) yr SJO - 1 1/18/80 0931-1230 75.984 2.151 94,171 66,364 1,878.1 139.8 20.3 93.0 1.1X10"12 0.4xlO~5 2.92xlO~8 1.78xlO~5 2.0xlO~6 0.04 SJO - 2 1/19/80 1004-1312 69.271 1.960 80,576 56,886 1,609.9 140.8 20.2 99.5 0.8xlO~12 0.3xlO~5 2.06xlO~8 1.39xlO~5 1.2xlO~6 0.03 SJO - 3 1/19/80 1516-1907 86.413 2.445 100,067 70,250 1,988.1 140.6 20.7 99.9 3.4xlO~12 1.4X10'5 1.02xlO~7 5.62xlO~5 6.5X10"6 0.12 SJO - 4 1/20/80 1045-1344 77.909 2.205 95,384 67,349 1,906.0 141.4 20.1 94.3 0.00 0.00 0.00 0.00 0.00 0.00 SJO - 5 1/20/80 1545-1842 78.573 2.224 95,363 67,093 1,898.7 139.7 20.6 95.0 5.7xlO~12 2.3xlO~s 1.56xlO~7 9.2xlO"| 10.4x10" 0.20 SJO - 6 1/21/80 0900-1157 72.415 2.049 86,284 60,655 1,716.5 139.1 20.7 97.1 0.2X10"12 0.07xlO~s 0.49xlO~8 0.37xlO~5 0.3xlO~6 0.006 Average outlet 76.763 2.172 91,974 64,766 1,832.9 140.2 20.4 96.5 1.9xlO~12 0.7xlO~5 5.21xlO~8 3.07xlO~s 3.4xlO~6 0.07 ------- TABLE 7. SUMMARY OF ANDERSEN PARTICLE SIZING RESULTS, ST. JOE PAPER COMPANY, PORT ST. JOE, FLORIDA, JANUARY 16-23, 1980 Scrubber Inlet Run 1 - 1/16 Flow rate, acfm: 0.297 Isokinetic %: 129.1 Run 2 - 1/16 Flow rate, acfm: 0.280 Isokinetic %: 121.6 Stage Pre impact. Washes Stage 0 1 2 3 4 5 6 7 8 Final filter Percent in size range 1.8 13 6 7.1 10.0 11.8 13.6 24.3 6.5 11.2 0.1 Cumulative \ less than size range 98.2 84.6 77.5 67.5 55.7 42.1 17.8 11.3 0.1 .0 Size range microns >19.0 14.0-19.0 11.0-14.0 9.0-11.0 6.0-9.0 3.8-6.0 1.9-3.8 1.2-1.9 0.82-1.2 <0.82 Stage Preimpact. Washes Stage 0 1 2 3 4 5 6 7 8 Final filter Percent in size range 5.7 7.4 6.4 9.5 12.4 16.3 18.7 12.4 2.8 8.5 Cumulative \ less than size range 94.4 87.0 80.5 71.1 58.7 42.4 23.7 11.3 8.5 0 Size range •icrons >21.0 16-21 14-16 8.8-14 5.9-8.8 3.8-5.9 1.9-3.8 1.3-1.9 0.82-1.3 <0.82 Run 3 - 1/16 Flow rate, acfm: 0.285 Isokinetic %: 107.1 Run 4 - 1/22 Flow rate, acfm: 0.292 Isokinetic %: 106.0 Stage Preinpact. Washes Stage 0 1 2 3 4 5 6 7 8 Final filter Percent in size range 6.7 5.9 8.0 7.4 12.6 13.9 16.5 13.0 5.2 10.8 Cumulative % less than size range 93.3 87.4 79.4 72.0 59.4 45.5 29.0 16.0 10.8 0 Size range •icrons >21.0 16-21 12-16 9-12 8-9 3.8-8 2.1-4.5 1.8-2.1 0.81-1.8 <0.81 Cumulative % Size Stage Preinpact. Washes Stage 0 1 2 3 4 5 6 7 8 Final filter Percent in size range 3.2 21.6 1.6 1.6 4.0 0.8 0.8 17.6 26.4 22.4 less than size range 96.8 75.2 73.6 72.0 68.0 67.2 66.4 48.8 22.4 0 range microns >19.2 14.9-19.2 8.3-14.9 5.7-8.3 3.7-5.7 2.0-3.7 1.5-2.0 1.1-1.5 0.7-1.1 <0.7 (continued) 12 ------- TABLE 7 (continued) Scrubber Inlet Run 5 - 1/23 Flow rate, acfm: 0.269 Isokinetic %: 119.5 Run 6 - 1/23 Flow rate, acfm: 0.257 Isokinetic %: 114.0 Stage Pre impact. Washes Stage 0 1 2 3 4 5 6 7 8 Final filter Percent in size range 0.9 1.7 1.7 24.1 11.2 21.6 15.5 2.6 5.2 15.5 Cumulative % less than size range 99.1 97.4 95.7 71.6 60.4 38.8 23.3 20.7 15.5 0 Size range microns >22 14-22 8.9-14 6.0-8.9 3.8-6.0 1.9-3.8 1.3-1.9 0.8-1.3 0.5-0.8 <0.5 Cumulative % Size Stage Preimpact. Hashes Stage 0 1 2 3 4 5 6 7 8 Final filter Percent in size range 1.4 13.7 27.4 12.3 1.4 4.1 4.1 13.7 8.2 13.7 less than size range 98.6 84.9 57.5 45.2 43.8 39.7 35.6 21.9 13.7 0 range microns >22 14-22 9-14 6.1-9 3.9-6.1 2.0-3.9 1.4-2.0 0.83-1.4 0.65-0.83 <0.65 Scrubber Outlet Run 1 - 1/16 Flow rate, acfm: 0.149 Isokinetic %: 95.7 Run 2 - 1/16 Flow rate, acfm: 0.152 Isokinetic %: 96.7 Stage Preimpact. Hashes Stage 0 1 2 3 4 5 6 7 8 Final filter Percent in size range 0.7 0.4 0.7 2.1 3.8 7.3 6.6 47.2 18.8 12.5 Cumulative % less than size range 99.4 99.0 98.3 96.2 92.4 85.1 78.5 31.3 12.5 0 , Size range microns >24 19-24 16-19 12-16 7.5-12 4.8-7.5 2.5-4.8 1.4-2.5 0.85-1.4 <0.85 Cumulative % Size Stage Preimpact. Washes Stage 0 1 2 3 4 5 6 7 8 Final filter Percent in size range 1.1 1.1 0 0 0 12.7 14.9 11.5 24.1 34.5 less than size range 98.8 97.7 97.7 97.7 97.7 85.0 70.1 58.6 34.5 0 range microns >25.6 18.8-25.6 4.8-18.8 2.4-4.8 1.6-2.4 0.9-1.6 <0.9 (continued) 13 ------- TABLE 7 (continued) Scrubber Outlet Run 3 - 1/16 Flow rate, acfm: 0.150 Isokinetic %: 97.6 Run 4 - 1/16 Flow rate, acfm: 0.152 Isokinetic %: 97.7 Cumulative % Size Stage Preimpact. Washes Stage 0 1 2 3 4 5 6 7 8 Final filter Percent in size range 3.2 0.7 0.4 i.e 3.4 7.0 6.3 46.6 17.1 11.6 less than size range 96.6 95.9 95.8 94.0 90.6 83.6 77.3 28.7 11.6 0 range microns >24 19-24 16-19 11-16 7.2-11 4.7-7.2 2.3-4.7 1.4-2.3 0.95-1.4 <0.95 Stage Pre impact. Washes Stage 0 1 2 3 4 5 6 7 8 Final filter Percent in •ize range 6.4 0.7 0.7 2.4 3.4 6.8 6.1 44.9 17.9 10.8 Cumulative % less than size range 93.7 93.0 92.3 89.9 86.5 79.7 73.6 28.7 10.8 0 Size range microns >22 19-22 14-19 11-14 7.2-11 4.8-7.2 2.3-4.8 1.4-2.3 0.9-1.4 <0.9 Run 5 - 1/23 Flow rate, acfm: 0.132 Isokinetic %: 94.4 Stage Pre impact. Washes Stage 0 1 2 3 4 5 6 7 8 Final filter Percent in size range 3.0 14.7 11.2 9.5 16.4 10.8 8.2 9.9 8.6 7.8 Cumulative % less than size range 97.1 82.4 71.2 61.7 45.3 34.5 26.3 16.4 7.8 0 Size range •icrons >28 22-28 17-22 12-17 8-12 5.1-8 2.9-5.1 1.9-2.9 1.0-1.9 <1.0 Run 6 - 1/23 Flow rate, acfm: 0.160 Isokinetic %: 102.8 Stage Preimpact. Washes Stage 0 1 2 3 4 5 6 7 8 Final filter Percent in size range 3.7 1.8 0.9 12.8 0 11.9 13.8 9.2 20.2 25.7 Cumulative % less than size range 96.3 94.5 93.6 80.8 80.8 68.9 55.1 45.9 25.7 0 Size range •icrons >24 18-24 16-18 11-16 7-11 4-7 2.2-4.0 1.4-2.2 0.92-1.4 <0.92 14 ------- TABLE 8. SUMMARY OF NO EMISSIONS (SCRUBBER OUTLET), ST. 50E PAPER COMPANY, PORT ST. JOE, FLORIDA, JANUARY 17-23, 1980 Run number Date 1-1 1/17/80 1-2 1-3 1-4 Average 2-1 1/21/80 2-2 2-3 2-4 Average 3-1 1/22/80 3-2 3-3 3-4 Average PPM 91.3 14.2 77.5 51.5 58.7 68.4 40.9 68.1 72.3 62.4 72.7 12.4 86.6 9.8 45.4 Ib/dscf x 10"6 10.80 1.68 9.17 6.09 6.94 8.09 4.84 8.06 8.55 7.39 8.60 1.47 10.25 1.17 5.37 lb/hra 37.8 5.9 32.1 21.3 24.3 26.7 16.0 26.6 28.2 24.4 28.6 4.9 34.0 3.9 17.9 Ib/mm Btu 0.2730 0.0426 0.2319 0.1538 0.1753 0.1977 0.1185 0.1970 0.2089 0.1805 0.2079 0.0356 0.2472 0.0284 0.1298 g/ncm x 10"3 0.173 0.027 0.147 0.098 0.111 0.130 0.078 0.129 0.137 0.118 0.138 0.024 0.164 0.019 0.086 kg/hra 17.1 2.7 14.5 9.7 11.0 12.1 7.2 12.1 12.8 11.1 13.0 2.2 15.4 1.8 8.1 kg/GJ 0.1171 0.0185 0.0993 0.0664 0.0753 0.0849 0.0505 0.0849 0.0898 0.0775 0.0896 0.0152 0.1061 0.0124 0.0558 Based on corresponding Method 5 run for flow velocity. the waste wood feed, emissions of S02 were below minimum detectable limits (0.74 x 10~7 Ib/scf for Method 8) at the scrubber outlet, and also on run #3 at the scrubber inlet. The waste wood feed during runs 1 and 2 had a slightly higher sulfur content and re- sulted in detectable S02 emissions at the inlet location, as shown in Table 9. A summary of the bark fuel analysis results is given in Table 10. Opacity readings by EPA Method 9 could not be made due to the steam content of the plume. Average boiler operating conditions during testing is presented in Table 11. Fuel feedrates reported represent the weightometer readings of the fuel as it filled the bins leading to the boiler. A lag time of 10-40 minutes was estimated between bin fill rate and boiler feed rate. Complete boiler operating data are given in Appendix E. Boiler #4 and its venturi scrubber pollution control equipment operated normally during the emission test. The samples taken can be expected to characterize boiler emissions during normal operation. 15 ------- TABLE 9. SUMMARY OF S02 RESULTS, ST. JOE PAPER COMPANY, PORT ST. JOE, FLORIDA, JANUARY 17-23, 1980 Run number Ib/scf Date PPM x 10~7 Ib/hr Ib/mm Btu Scrubber inlet 1 2 3 1/17/80 4.85 6.02 178.1 1.286 1/21/80 1.06 1.32 36.0 b 0.267 1/22/80 Below detection limit Scrubber outlet 1 2 3 1/17/80 1/21/80 1/22/80 Below detection limit^ Below detection limit^ Below detection limit Based on corresponding Method 5 run for flow velocity. Minimum detectable limit is 0.74 x 10~7 Ib/scf for S02. TABLE 10. SUMMARY OF BARK FUEL ANALYSES, ST. JOE PAPER COMPANY PORT ST. JOE, FLORIDA, JANUARY 17-23, 1980 Run *1 Run #2 Analysis Run *3 As rcvd Dry basis As rcvd Dry basis As rcvd Dry basis Proximate analysis, % Moisture Volatile matter Fixed carbon Ash Sulfur Btu/lb Ultimate analysis, % Carbon Hydrogen Nitrogen Sulfur Ash Oxygen 46.51 — 0.47 0.02 4,778 25.98 8.27 0.08 0.02 0.47 65.18 — — 0.92 0.04 9,279 50.45 5.59 0.15 0.04 0.92 42.85 48.04 — 0.64 0.02 4,931 26.19 8.25 0.05 0.02 0.64 64.85 — — 1.23 0.03 9,490 50.40 5.60 0.10 0.03 1.23 42.64 48.54 — 2.30 0.01 4,651 25.61 8.08 0.07 0.01 2.30 63.93 -- — 4.47 0.02 9,038 49.76 5.22 0.14 0.02 4.47 40.39 Analysis Run ft4 Run »5 Run *6 As rcvd Dry basis As rcvd Dry basis As rcvd Proximate analysis, % Moisture Volatile matter Fixed carbon Ash Sulfur Btu/lb Ultimate analysis, % Carbon Hydrogen Nitrogen Sulfur Ash Oxygen 47.57 — 0.61 0.01 4,802 26.01 6.12 0.06 0.01 0.61 65.19 — — 1.17 0.02 9,159 49.60 5.40 0.11 0.02 1.17 43.70 51.95 .. 1.04 0.00 4,429 20.69 7.99 0.04 0.00 1.04 70.24 — __ 2.17 0.01 9,218 43.06 4.62 0.08 0.01 2.17 50.06 49.90 1.21 0.01 4,558 23.85 8.15 0.07 0.01 1.21 66.71 -- __ 2.42 0.01 9,907 47.61 5.21 0.13 0.01 2.42 44.62 16 ------- TABLE 11. SUMMARY OF AVERAGE BOILER OPERATING CONDITIONS DURING TESTING, POWER BOILER NUMBER 4, ST. JOE PAPER COMPANY, PORT ST. JOE, FLORIDA, JANUARY 17-23, 1980 Test number 1 BAP-1 BAP- 2 BAP -3 BAP-4 BAP -5 BAP- 6 2 3 4 5 6 Date 1/17 1/18 1/19 1/19 1/20 1/20 1/21 1/21 1/22 1/22 1/23 1/23 Time interval 940-1526 930-1227 1000-1311 1515-1912 1045-1342 1545-1842 900-1200 1800-1959 952-1148 1825-2018 1200-1358 1705-1853 Bark feed Steam rate, production, Ib/hr Ib/hr 50,293 28,015 37,896 52,098 49,485 57 , 184 41,814 34,311 32,682 38,183 56,714 56,542 101 100 106 100 103 108 104 99 101 102 104 108 ,000 ,000 ,000 ,000 ,000 ,000 ,000 ,000 ,000 ,000 ,000 ,000 Steam temperature , OF 740 737. 740 740 739. 737. 728. 727 . 724. 725. 740. 740 5 2 5 8 8 6 7 4 Steam pressure, psig 630 630 630 630 630 630 630 630 630 603.2 620 615 Steam heat output , mm Btu/hr 138.45 136.935 145.30 137.08 141.14 147 . 89 141.89 135.02 137.56 139.13 142.65 148 . 14 Steam heat output, GJ/hr 146.08 144.48 153.31 144.63 148.92 156.04 149.71 142.46 145.14 146.79 150.51 156.30 Scrubber pressure drop, in. H20 8 8 8 8 13.5 13.5 13.5 8 8 13.5 13.5 13.5 Average hourly feed rates were based on weightometer integration readings taken at start and end of each test. Values reported represent the fill rate of the feed bin above boiler which has a residence time of approximately 10-40 minutes. ------- SECTION 3 PROCESS DESCRIPTION At their mill in Port St. Joe, Florida, the St. Joe Paper Company operates seven boilers which produce steam for process and electri- cal power. One of these, power boiler #4, is a 1952 vintage Babcock & Wilcox forced-draft traveling-grate spreader-stoker bark/ oil-fired boiler, design rated to produce 110,000 Ib steam/hr from bark (175,000 Ib steam/hr from oil). No. 6 fuel oil is supplied as auxiliary feed to bark in order to meet high steam demand, compensate for wet bark, or boiler start-up. No fuel oil was burned during this emission test. Cyclone fly ash is reinjected into the boiler after sand is screened out, but comprises a negligible portion of fuel feed according to plant personnel. The boiler exhaust gases travel through Buell Rotoclones and are then pushed by an ID fan through an Air Pollution Industries, Inc. (installed 1978) variable throat venturi wet scrubber system, which normally operates at 8-10 inches W.G. pressure drop. A sketch of the wet scrubber unit is provided in Figure 1. Exhaust gases are discharged through a stack which terminates 139 ft above ground level. 18 ------- PLATFORMS FROM CYCLONES Figure 1. Diagram of venturi scrubber control equipment, Boiler #4, St. Joe Paper Company. ------- SECTION 4 LOCATION OF SAMPLING POINTS As a result of the pretest survey, the sampling program included the inlet to the venturi scrubber and the outlet at the stack platform. Simultaneous sampling for particulates, particle size, and BaP was performed at the two locations. Sampling ports at the scrubber inlet were installed by the plant prior to the test. Two 4-inch ports 90° apart were installed in the 72 inch diameter circular duct six feet above the floor of the platform. Figure 2 illustrates the inlet sampling location. The nearest disturbance was an expansion one stack diameter below the ports (upstream). A diagram of the scrubber outlet sampling location is given in Figure 3. The 84 inch diameter stack has two 4 inch ports 90° apart which are 4 ft above the platform floor and a 3 ft 7 in. railing provides protection. The nearest upstream disturbance is 18 ft (2.5 stack diameters) below the ports and the top of the stack is 11 ft (1.6 stack diameters) above ports. 20 ------- AIRFLOW TT l'-6" JL_ o B '-4" TOP VIEW SIDE VIEW Figure 2. Venturi scrubber inlet sampling location, St. Joe Paper Company. ------- 18' BC A o W 11' PLATFORM TOP VIEW SIDE VIEW Figure 3. Venturi scrubber outlet sampling location, St. Joe Paper Company. 22 ------- SECTION 5 SAMPLING AND ANALYTICAL PROCEDURES The St. Joe Paper Company's boiler #4 was sampled for particulate matter, particle size, benzo-alpha-pyrene, S02, NO , integrated gas analysis, and fuel analysis. The following describes the methods used. SAMPLING PROCEDURES Particulate Sampling for particulates was performed using the method outlined in the Federal Register, Method 5, "Determination of Particulate Emissions from Stationary Sources," with the modification that the sample box temperature was maintained at 325°F instead of 250°F. Particle Size Sampling for particle size was performed using an Andersen cas- cade impactor with seven stages and a back-up filter. The sampling train used consisted of the following equipment listed in order of the flow: a 10 mm diameter probe tip; a curved (90°) probe tip to Andersen head connector; standard Andersen heads; a 4 foot stainless steel probe; a Smith-Greenburg impinger with water, then one charged with color indicating silica gel; and an EPA-5 console equipped with a dry gas meter, digital electronic thermometer and an inclined manometer. Also, an S-type pitot tube was connected to the probe so the stack gas pressure could be continually monitored. A total of 12 particle sizing runs were made. Each run was conducted under isokinetic conditions for about 5 minutes at the scrubber inlet and 25 minutes at the scrubber outlet. At the completion of each run, the moisture collected was meas- ured and the Andersen heads were opened and oven-dried for three hours. After drying, each stage was weighed, then the filter was removed and the stage assemblies were cleaned, desiccated and reweighed to provide partial tare weights. The tare weights of the filters were taken during the assembly of the heads (after desiccation for 24 hours). 23 ------- All weight measurements were made with a Mettler analytical balance. The balance was calibrated daily and rezeroed before each weight determination. Calculations were performed using methods and tables provided in the Andersen manual. Benzo-alpha-pyrene The sampling procedures used at the venturi scrubber inlet and outlet locations consisted of an EPA Method 5 train, modified in the following manner (using EPA's draft BaP Method). A Batteiie trap loaded with XAD-2 resin was inserted between the heated filter, which was cut from a General Metal Works No. 25 Hi-Volume Filter (see Appendix D for typical Elemental Analysis), and the first impinger. A thermostatically-controlled water bath kept the temperature of the Batteiie trap at 127°F. The Batteiie trap was shielded from visible and ultraviolet light by wrapping with aluminum foil. The Batteiie trap was capped after sampling and remained capped, until the analysis was performed. Methylene chloride was used for the recovery of the sample from the 316 stainless steel probe, glass filter holder with a 316 stainless steel filter support and the connecting glassware up to the Batteiie trap. Figure 4 is a schematic of the BaP train while Figure 5 shows the Batteiie trap used in the BaP train. All the field data sheets and analytical forms are included in Appendix D. For the BaP tests, the inlet and outlet locations were sampled simultaneously at forty-eight points for three minutes a point. Tests 1, 2, and 3 were conducted with eight inches of water pressure drop across the scrubber while tests 4, 5, and 6 had fourteen inches of water pressure drop. No major problems were encountered during the testing. Sulfur Dioxide Sampling for S02 was performed using the alternate method out- lined in the Section 2.1 the Federal Register, Method 6, "Deter- mination of Sulfur Dioxide Emissions from Stationary Sources," Option 2, where S02 is determined simultaneously with particulate matter by replacing the Method 5 water impinger system (back half) with a Method 8 isopropanol-filter-peroxide system. Nitrogen Oxides Sampling for NO was performed using the method outlined in the Federal Register, Method 7, "Determination of Nitrogen Oxide Emissions from Stationary Sources." 24 ------- ro en \ STAINLESS STEEL PROBE \ ' PI TOT TUBE BATTELLE TRAP TEMP. •-FILTER TEMP. STACK TEMP. THERMOCOUPLE MINIMI TE JUNCTION BOX ^ I PIIMP l_ .9 UMBILICAL CORD Figure 4. BaP sample train. ------- GLASS WATER JACKET 8mm - GLASS COOLING COIL GLASS FRITTED DISC ABSORBANT GLASS WOOL Figure 5. Battelle resin trap for BaP sample train. Opacity Visible emissions were to be read during particulate sampling by a certified smoke reader who met the specifications of Federal Register, Method 9. However, the high water content of the plume prevented accurate measurements from being taken, and these readings were dropped from the sampling program. 26 ------- Integrated Gas Analysis Exhaust gas analysis was performed using the method outlined in the Federal Register, Method 3, "Gas Analysis for Carbon Dioxide, Oxygen, Excess Air, and Dry Molecular Weight." Fuel Six grab samples of feed bark were taken from the conveyor, one during each Method 5 run. ANALYTICAL PROCEDURES Particulate, SO?, NO , Gas Analysis ^—^m^^^^^^^^^^^J^ All analytical procedures were performed using the methods de- scribed in EPA Methods 3, 5, 6, and 7, previously mentioned in the Sampling Procedures section. BaP Analysis The volume of the rinse sample was recorded and the sample was stored at 4°C in an amber glass bottle until the analysis was performed. If the rinse sample was deeply colored or contained a large amount of suspended material, it was diluted ten to one with cyclohexane before it was analyzed. No samples needed dilu- tion in this emission test. The filter was extracted with 100 mL of cyclohexane while the XAD-2 resin from the Battelle trap was extracted with 250 mL of cyclohexane. The extraction procedure placed the filter or XAD-2 into a single thickness pre-extracted cellulose extraction thim- ble. The thimble was then placed in a soxhlet extraction appara- tus and extracted for eight hours at five to six cycles per hour. All this was done either behind a yellow light-safe screen or under a yellow safe light. At the end of the extraction, the extract volume was recorded, and the extract stored in an amber bottle at 4°C until the analysis was performed. The thimble was checked with a black light to confirm complete extraction. The samples are analyzed for BaP using the fluorescence spectro- photometric procedure. This method is preferred over the thin layer chromatographic (TLC) method for low level BaP analysis, as the TLC method has only 0.01 the sensitivity of direct liquid measurement. The benzo-a-pyrene method using the fluorescence spectrophotometry was tailored to these samples. The method originally chosen was intended to be a thin layer chromatography separation and measurement by scanning in-situ with a scanning attachment for the fluorescence spectrophotometer. This method lacked the sensitivity required for the analyses. 27 ------- The procedure for BaP analysis was by means of fluorescence spectrophotometry. The equipment used for this analysis was -en Aminco Model SPF-125 Spectrophotofluorometer with 7 mm lightpatn cell. This instrument accurately measures concentrations of ear as low as 0.001 ppm. The wavelength settings were 378 nm excita- tion and 403 nm emission with respective slitwidth openings or 1 mm and 0.5 mm. This instrument becomes extremely substance specific at very narrow slit widths, as was used in this analysis. The spectrophotometer is equipped with a high intensity xenon lamp which provides the excitation energy. For BaP analysis, tne best results are obtained by setting the excitation wavelength and emission wavelength to produce the maximum peak height, with a narrow slit width, the specificity of the instrument is greatly increased. The excitation wavelength is 378 nm. The minimum entrance slit width used was 1 mm. The excitation energy is re-emitted as fluorescence of a longer wavelength. For BaP, this wavelength is 403 nm. The exit slit width can be narrower than the entrance slit width, as in this case, 0.5 mm. The fluores- cence is expressed as a relative intensity. The relative inten- sity values are converted to BaP concentrations by analyzing a set of known standards. These standards are prepared by serial dilution of a 1,000 pg/mL BaP stock solution. This is prepared by dissolving 10 mg of three times recrystallized BaP in 10 mL spectral grade cyclohexane. This is stable for several months if stored away from light at 0°C. To determine the concentration of BaP in unknown samples, it is necessary to plot a curve of the relative intensities from the standards. The (jg/mL in the sample is then determined by the sample's relative intensity compared to the graph of the standards. The results can be affected by temperature, humidity, and light. Precautions are taken during sampling, preparation, and analysis to keep the exposure to light at a minimum. The optimum relative humidity is between 35 percent and 50 percent. The instrument is equipped with a constant temperature cell compartment to avoid instability and the possible loss of sensitivity which could be caused by a change in sample temperature. All glassware with which the sample comes in contact is cleaned by using soapy water wash, 50% nitric acid rinse, and a distilled, deionized water rinse, respectively. When using fluorescence spectrophotometry, only high quality quartz cuvettes are used. No corks, rubber stoppers or lubricating agents are used and care is taken so that impurities do not contaminate the sample. Fuel Analysis of the bark feed was performed using ASTM D 3178 for carbon and hydrogen, ASTM D 3176 for oxygen, ASTM D 3179 for nitrogen, ASTM D 3177 for sulfur, and ASTM D 3174 for ash. Fuel value was determined using ASTM D 2015. 28 ------- Quality Assurance/Quality Control Results of quality control tests are furnished with the analytical data sheets provided in Appendix C. 29 ------- |