New and Revised Emissions Factors for Flares and New Emissions …
Mar 6, 2025 · Based on this evaluation, we have finalized a new VOC emissions factor for flares. We are also finalizing emissions factors (or emissions estimation methodologies) for certain refinery operations and pollutants that are not covered by the consent decree.
AP-42: Compilation of Air Emissions Factors from Stationary Sources
Mar 13, 2025 · AP-42, Compilation of Air Pollutant Emissions Factors from Stationary Sources, has been published since 1972 as the primary compilation of EPA's emissions factor information. It contains emissions factors and process information for more than 200 air …
AP 42, Fifth Edition, Volume I Chapter 13: Miscellaneous Sources
Mar 25, 2025 · Flare Efficiency Study, EPA 600/2-83-052 - July 1983 (PDF) (142 pp, 3 MB) - Primary reference for the section.
Flaring is a high-temperature oxidation process used to burn combustible components, mostly hydrocarbons, of waste gases from industrial operations. Natural gas, propane, ethylene, propylene, butadiene and butane constitute over 95 percent of the waste gases flared.
rize flare emissions. Early EPA tests using propylene as flare gas indicated that efficiencies of 98 percent can be achieved when burning an offgas with at least 11,200 kJ/m3 (300 Btu/ft3).1 However, recent studies on flare performance using passive Fourier Transform Infrared (pFTIR) spectroscopy have been performed on a number of different ...
What is a Flare System? Gas flaring is the controlled burning of natural gas that cannot be processed for sale or use because of technical or economic reasons. The height of the flame depends upon the volume of released gas, while brightness and colour depend upon composition.
AP-42, Compilation of Air Pollutant Emission Factors, has been published since 1972 as the primary compilation of EPA's emission factor information. It contains emissions factors and process information for more than 200 air pollution source categories.
AP 42, Fifth Edition, Volume I - US EPA
References to a "Material Handling Factor in section 13.2.2" in Table 13.2.3-1 were updated to say "Material handling emission factor equation in Section 13.2.4." The reference to section to …
EPA Finalizes New Enclosed Flare AP-42 Emission Factors
Mar 20, 2018 · The six emissions factors are finalized as an update to Section 13.5 of AP-42, Compilation of Air Pollutant Emission Factors. AP-42 is the primary compilation of EPA’s emissions factor information.
Jun 21, 2007 · Emissions Factors & AP 42 An emissions factor is a representative value that attempts to relate the quantity of a pollutant released to the atmosphere with an activity associated with the release of that pollutant.