Petroleum and Natural Gas Systems &ERA United States -m m~ • j • 1 11* a t* T T j 1 Environmental Protaction Monitoring Checklist lor LNG Import and Asency Export Final Rule: Mandatory Reporting of Greenhouse Gases (40 CFR Part 98) What must be monitored? If emissions are going to flares, need data elements under the source flare stacks (see Monitoring Checklist for Onshore Petroleum and Natural Gas Production). Record these parameters on an annual basis, unless specified otherwise. 1. Reciprocating Compressor Rod Packing Venting Record emissions at each reciprocating compressor in as-found mode. Each mode must be monitored at least once in any three consecutive calendar years. Reciprocating Compressor Emissions in Operating Mode: ~ Rod packing venting from ~ reciprocating compressor in operational mode (standard cubic feet per hour) ~ Total time the compressor is in ~ operating mode (hours) ~ Mole fraction of GHG in the vent gas Blowdown vent emissions from reciprocating compressor in operational mode (standard cubic feet per hour) Annual throughput (million standard cubic feet per day) Reciprocating Compressors Emissions in Standby Pressurized Mode: ~ Blowdown vent emissions from ~ Total time the reciprocating compressor is reciprocating compressor in standby in standby, pressurized mode (hours) pressurized mode (standard cubic feet) ~ Mole fraction of GHG in the vent gas Petroleum and Natural Gas Monitoring Checklist LNG Import and Export Page 1 of 5 40 CFR 98, subpart W September 2010 ------- Reciprocating Compressors in Shutdown, Depressurized Mode: ~ Unit isolation valve emissions from ~ Total time the reciprocating compressor is reciprocating compressor in in shutdown, depressurized mode (hours) shutdown depressurized mode (standard cubic feet) ~ Mole fraction of GHG in the vent gas Record emission factors for recip ~ Total annual reciprocating ~ compressor emissions in operating mode (cubic feet) ~ Total annual reciprocating ~ compressor emissions in shut down, depressurized mode (cubic feet) ~ Total number of compressors ~ measured in standby, pressurized mode ~ Emission factor for rod packing ~ vent emission in operating mode (cubic feet per hour) ~ Emission factor for blowdown vent ~ emissions in standby pressurized mode (cubic feet per hour) ;ing compressors in each mode. Total annual reciprocating compressor emissions in standby, pressurized mode (cubic feet) Total number of compressors measured in operating mode Total number of compressors measured in shutdown, depressurized mode Emission factor for blowdown vent emissions in operating mode (cubic feet per hour) Emission factor for isolation valve in shutdown, depressurized mode (cubic feet per hour) Record emissions from each reciprocating compressor in all modes and total annual emissions. ~ Total annual compressor emission ~ from all modes of operation (standard cubic feet) ~ Total time the reciprocating ~ compressor is in standby, pressurized mode in reporting year (hours) Total time the compressor is in operating mode in reporting year (hours) Total time the reciprocating compressor is in shutdown, depressurized mode in reporting year (hours) Petroleum and Natural Gas Monitoring Checklist LNG Import and Export Page 2 of 5 40 CFR 98, subpart W September 2010 ------- 2. Centrifugal Compressor Venting Record emissions at both wet and dry seal centrifugal compressors in as- found mode. Each mode must be monitored at least once in any three consecutive calendar years. Centrifugal Compressor Emissions in Operating Mode, Wet and Dry Seal Compressors: ~ Wet seal oil degassing vents ~ emissions from centrifugal compressor in operational mode (standard cubic feet per hour) ~ Total time the centrifugal ~ compressor is in operating mode (hours) ~ Type of meters used for making ~ measurements ~ Mole fraction of GHG in the vent ~ gas Blowdown vent emissions centrifugal compressor in operational mode (standard cubic feet per hour) Number of wet seals connected to the degassing vent Fraction of operating time vent gas is sent to vapor recovery or fuel gas Annual throughput (million standard cubic feet per day) Centrifugal Compressors in Not-operating, Depressurized Mode, Wet and Dry Seal Compressors: ~ Unit isolation valve emissions from ~ Total time the centrifugal compressor is in centrifugal compressor in shutdown shutdown, depressurized mode (hours) depressurized mode (standard cubic feet) ~ Mole fraction of GHG in the vent gas Record emission factors for centrifugal compressors in each mode. ~ Total annual emissions from all centrifugal compressor in operating mode (cubic feet) ~ Total number of centrifugal compressors measured in operating Total annual emissions from all centrifugal compressor in shut down, depressurized mode (cubic feet) Total number of centrifugal compressors measured in shutdown, depressurized Petroleum and Natural Gas Monitoring Checklist LNG Import and Export Page 3 of 5 40 CFR 98, subpart W September 2010 ------- mode mode ~ Emission factor for wet seal ~ Emission factor for blowdown vent degassing vent in operating mode emissions in operating mode (cubic feet (cubic feet per hour) per hour) ~ Emission factor for isolation valve in shutdown, depressurized mode (cubic feet per hour) Record emissions from each centrifugal compressor in all modes and total annual emissions. ~ Total annual centrifugal compressor ~ Total time the centrifugal compressor is in emission from all modes of operating mode in reporting year (hours) operation (standard cubic feet) ~ Total time the centrifugal compressor is in shutdown, depressurized mode in reporting year (hours) 3. Blowdown Vents ~ Number of repetitive blowdowns ~ for each equipment type of a unique volume ~ Actual temperature in the ~ blowdown equipment chamber (°F) ~ Emissions per equipment type (cubic feet) Total volume of blowdown equipment chambers (including pipelines, compressors and vessels) between isolation valves (cubic feet) Actual pressure in the blowdown equipment chamber (psia) 4. Valve Equipment Leaks Using Leak Detection ~ Report CO2 emissions from all ~ Report CH4 emissions from all other valves valves (standard cubic feet) (standard cubic feet) ~ Operating time of leaking ~ Total number of components found leaking component (hours) 5. Pump Seal Equipment Leaks Using Leak Detection ~ Report CO2 emissions from all ~ Report CH4 emissions from all pump seals Petroleum and Natural Gas Monitoring Checklist LNG Import and Export Page 4 of 5 40 CFR 98, subpart W September 2010 ------- pump seals (standard cubic feet) (standard cubic feet) ~ Operating time of leaking ~ Total number of components found leaking component (hours) 6. Connector Equipment Leaks Using Leak Detection ~ Report CO2 emissions from all ~ Report CH4 emissions from all other connectors (standard cubic feet) connectors (standard cubic feet) ~ Operating time of leaking ~ Total number of components found leaking component (hours) 7. Other Equipment Leaks Using Leak Detection ~ Report CO2 emissions from all ~ Report CH4 emissions from all other other equipment (standard cubic equipment (standard cubic feet) feet) ~ Operating time of leaking ~ Total number of components found leaking component (hours) 8. Vapor Recovery Compressors Using Population Count and Factors ~ Concentration of CH4 in natural gas ~ Report CO2 emissions from all vapor recovery compressors (standard cubic feet) ~ Operating time of compressors (hours) ~ Concentration of CO2 in natural gas ~ Report CH4 emissions from all vapor recovery compressors (standard cubic feet) ~ Total number of compressors Petroleum and Natural Gas Monitoring Checklist LNG Import and Export Page 5 of 5 40 CFR 98, subpart W September 2010 ------- |