* — \ *1 PROt^ Revisions to PM Emissions from Natural Gas Combustion in Final Version of 2002 NEI ------- ------- EP A-454/B-20-013 Revisions to PM Emissions from Natural Gas Combustion in Final Version of 2002 NEI U.S. Environmental Protection Agency Office of Air Quality Planning and Standards Air Quality Assessment Division Research Triangle Park, NC ------- The EPA will revise the PM emissions from natural gas combustion in the final version of the 2002 NEI. The revision will decrease the emissions of PM10-PRI, PM2.5-PRI, and PM-CON by about 95%. The reason for this adjustment is that EPA believes that the current AP-42 factors for condensable emissions are too high. The EPA is basing this adjustment on some limited data from the draft EPA dilution method that is similar to conditional test method (CTM) 39 (http://www.epa.gov/ttn/emc/ctm.htmn that measures PM10-PRI and PM2.5-PRI directly. The EPA is basing this adjustment on some limited data from a pilot-scale dilution sampling method that is similar to EPA's CTM 39. None of the test data presented on the New York State Energy Research and Development Authority (NYSERDA) web site http://www.nvserda.org/programs/Environment/EMEP/publications.asp under "Research Reports present findings from completed EMEP projects. - Final Reports" are cited in CTM 39. However, the revised NEI emissions factors and the assessment of the similarity of the sampling methods were based upon an analysis of the information contained in the following reports which are on the above NYSERDA web site: Development of Fine Particulate Emission Factors for Oil- and Gas-fired Combustion Systems (909kb .pdf) Development of Fine Particulate Emission Factors for Oil- and Gas-fired Combustion Systems: Supporting Analysis and Site Test Report Technical Memorandum: Conceptual Model of Sources of Variability in Combustion Turbine PM10 Emissions Data (486kb .pdf) Impact of Operating Parameters on Fine Particulate Emissions from Natural Gas-Fired Combined Cycle and Cogeneration Power Plants (324kb .pdf) Fine Particulate Test Protocol (296kb .pdf) Test Results for a Gas-Fired Process Heater (Site Alpha) (1.36MB .pdf) Test Results for a Combined Cycle Power Plant with Supplementary Firing, Oxidation Catalyst and SCR at Site Bravo (940kb .pdf) Test Results for a Gas-Fired Process Heater with Selective Catalytic NOx Reduction (Site Charlie) (1.5MB .pdf) Test Results for a Dual-Fuel-Fired Commercial Boiler (Site Delta) (1.7MB .pdf) Test Results for a Combined Cycle Power Plant with Oxidation Catalyst and SCR at Site Echo (841kb .pdf) Test Results for a Diesel Fuel-Fired Compression Ignition Reciprocating Engine with a Diesel Particulate Filter at Site Foxtrot (570kb .pdf) ------- Test Results for a Cogeneration Plant with Supplementary Firing, Oxidation Catalyst and SCR at Site Golf (491kb .pdf) The affected SCC's are as follows: see SCC_Description 10100601 External Combustion BoilersElectric GenerationNatural GasBoilers > 100 Million Btu/hr except Tangential 10100602 External Combustion BoilersElectric GenerationNatural GasBoilers < 100 Million Btu/hr except Tangential 10100604 External Combustion BoilersElectric GenerationNatural GasTangentially Fired Units 10100701 External Combustion BoilersElectric GenerationProcess GasBoilers > 100 Million Btu/hr 10100702 External Combustion BoilersElectric GenerationProcess GasBoilers < 100 Million Btu/hr 10101001 External Combustion BoilersElectric GenerationLiquified Petroleum Gas (LPG)Butane 10101002 External Combustion BoilersElectric GenerationLiquified Petroleum Gas (LPG)Propane 10101003 External Combustion BoilersElectric GenerationLiquified Petroleum Gas (LPG)Butane/Propane Mixture: Specify Percent Butane in Comments 10200601 External Combustion BoilerslndustrialNatural Gas> 100 Million Btu/hr 10200602 External Combustion BoilerslndustrialNatural Gas10-100 Million Btu/hr 10200603 External Combustion BoilerslndustrialNatural Gas< 10 Million Btu/hr 10200604 External Combustion BoilerslndustrialNatural GasCogeneration 10200701 External Combustion BoilerslndustrialProcess GasPetroleum Refinery Gas 10200704 External Combustion BoilerslndustrialProcess GasBlast Furnace Gas 10200707 External Combustion BoilerslndustrialProcess GasCoke Oven Gas 10201001 External Combustion BoilerslndustrialLiquified Petroleum Gas (LPG)Butane 10201002 External Combustion BoilerslndustrialLiquified Petroleum Gas (LPG)Propane 10201003 External Combustion BoilerslndustrialLiquified Petroleum Gas (LPG)Butane/Propane Mixture: Specify Percent Butane in Comments 10201401 External Combustion BoilerslndustriaICO BoilerNatural Gas 10201402 External Combustion BoilerslndustriaICO BoilerProcess Gas 10300601 External Combustion BoilersCommercial/lnstitutionalNatural Gas> 100 Million Btu/hr 10300602 External Combustion BoilersCommercial/lnstitutionalNatural Gas10-100 Million Btu/hr 10300603 External Combustion BoilersCommercial/lnstitutionalNatural Gas< 10 Million Btu/hr 10301001 External Combustion BoilersCommercial/lnstitutionalLiquified Petroleum Gas (LPG)Butane 10301002 External Combustion BoilersCommercial/lnstitutionalLiquified Petroleum Gas (LPG)Propane 10301003 External Combustion BoilersCommercial/lnstitutionalLiquified Petroleum Gas (LPG)Butane/Propane Mixture: Specify Percent Butane in Comments ------- see SCC_Description 10500106 External Combustion BoilersSpace HeaterslndustrialNatural Gas 10500110 External Combustion BoilersSpace HeaterslndustrialLiquified Petroleum Gas (LPG) 10500206 External Combustion BoilersSpace HeatersCommercial/lnstitutionalNatural Gas 10500210 External Combustion BoilersSpace HeatersCommercial/lnstitutionalLiquified Petroleum Gas (LPG) 20100201 Internal Combustion EnginesElectric GenerationNatural GasTurbine 20200201 Internal Combustion EngineslndustrialNatural GasTurbine 20200203 Internal Combustion EngineslndustrialNatural GasTurbine: Cogeneration 20300202 Internal Combustion EnginesCommercial/lnstitutionalNatural GasTurbine 20400301 Internal Combustion EnginesEngine TestingTurbineNatural Gas 2101006000 Stationary Source Fuel CombustionElectric UtilityNatural GasTotal: Boilers and IC Engines 2101006001 Stationary Source Fuel CombustionElectric UtilityNatural GasAII Boiler Types 2101006002 Stationary Source Fuel CombustionElectric UtilityNatural GasAII IC Engine Types 2101007000 Stationary Source Fuel CombustionElectric UtilityLiquified Petroleum Gas (LPG)Total: All Boiler Types 2102006000 Stationary Source Fuel CombustionlndustrialNatural GasTotal: Boilers and IC Engines 2102006001 Stationary Source Fuel CombustionlndustrialNatural GasAII Boiler Types 2102006002 Stationary Source Fuel CombustionlndustrialNatural GasAII IC Engine Types 2102007000 Stationary Source Fuel CombustionlndustrialLiquified Petroleum Gas (LPG)Total: All Boiler Types 2103006000 Stationary Source Fuel CombustionCommercial/lnstitutionalNatural GasTotal: Boilers and IC Engines 2103007000 Stationary Source Fuel CombustionCommercial/lnstitutionalLiquified Petroleum Gas (LPG)Total: All Combustor Types 2103007005 Stationary Source Fuel CombustionCommercial/lnstitutionalLiquified Petroleum Gas (LPG)AII Boiler Types 2103007010 Stationary Source Fuel CombustionCommercial/lnstitutionalLiquified Petroleum Gas (LPG)Asphalt Kettle Heaters 2104006000 Stationary Source Fuel CombustionResidentialNatural GasTotal: All Combustor Types 2104006010 Stationary Source Fuel CombustionResidentialNatural GasResidential Furnaces 2104007000 Stationary Source Fuel CombustionResidentialLiquified Petroleum Gas (LPG)Total: All Combustor Types 2199007000 Stationary Source Fuel CombustionTotal Area Source Fuel CombustionLiquified Petroleum Gas (LPG)Total: All Boiler Types 27300320 Internal Combustion EnginesOff-highway LPG-fueled Engineslndustrial Equipmentlndustrial Fork Lift: Liquified Petroleum Gas (LPG) 30290005 Industrial ProcessesFood and AgricultureFuel Fired EquipmentLiquified Petroleum Gas (LPG): Process Heaters 30500209 Industrial ProcessesMineral ProductsAsphalt ConcreteAsphalt Heater: LPG 30590005 Industrial ProcessesMineral ProductsFuel Fired EquipmentLiquified Petroleum Gas (LPG): Process Heaters 30600105 Industrial ProcessesPetroleum IndustryProcess HeatersNatural Gas-fired ------- see SCC_Description 30600107 Industrial ProcessesPetroleum IndustryProcess HeatersLPG-fired 30622005 Industrial ProcessesPetroleum IndustryUnderground Storage and Other Remediation: Soil: LPG 30622205 Industrial ProcessesPetroleum IndustryUnderground Storage and Other Remediation: Vapor Extract: LPG 30622405 Industrial ProcessesPetroleum IndustryUnderground Storage and Other Remediation: Air Stripping: LPG 30890004 Industrial ProcessesRubber and Miscellaneous Plastics ProductsFuel Fired EquipmentLiquified Petroleum Gas (LPG): Process Heaters 31000404 Industrial ProcessesOil and Gas ProductionProcess HeatersNatural Gas 31000414 Industrial ProcessesOil and Gas ProductionProcess HeatersNatural Gas: Steam Generators 39000689 Industrial Processesln-process Fuel UseNatural GasGeneral 39092051 Industrial Processesln-process Fuel UseFuel Storage - Pressure TanksLPG: Withdrawal Loss 39901001 Industrial ProcessesMiscellaneous Manufacturing IndustriesProcess Heater/FurnaceLPG 40201004 Petroleum and Solvent EvaporationSurface Coating OperationsCoating Oven HeaterLiquified Petroleum Gas (LPG) 40600172 Petroleum and Solvent Evaporation!"ransportation and Marketing of Petroleum ProductsTank Cars and TrucksTransit Losses - LPG: Loaded with Fuel 40600173 Petroleum and Solvent Evaporation!"ransportation and Marketing of Petroleum ProductsTank Cars and TrucksTransit Losses - LPG: Return with Vapor 50190010 Waste DisposalSolid Waste Disposal - GovernmentAuxillary Fuel/No EmissionsLiquified Petroleum Gas (LPG) 50290010 Waste DisposalSolid Waste Disposal - Commercial/lnstitutionalAuxillary Fuel/No EmissionsLiquified Petroleum Gas (LPG) 50390010 Waste DisposalSolid Waste Disposal - IndustrialAuxillary Fuel/No EmissionsLiquified Petroleum Gas (LPG) ------- United States Office of Air Quality Planning and Standards Publication No. EPA-454/B-20-013 Environmental Protection Air Quality Assessment Division Agency Research Triangle Park, NC ------- |