API PUBL 4589-1993

$42.25

Fugitive Hydrocarbon Emissions from Oil and Gas Production Operations

Published By	Publication Date	Number of Pages
API	1993	253

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Description

In 1980, the American Petroleum Institute published emission factors for fugitive hydrocarbon emissions from onshore and offshore petroleum production sites. The new emission factors developed from this joint study by API and the Gas Research Institute replace the existing 1980 API factors. More than 180,000 components were screened using EPA Method 21 guidelines and over 700 leaks were speciated to determine new emission rates of total hydrocarbons, volatile organic compounds, and individual air toxics (i.e., benzene, toluene, ethyl benzene, and xylenes).

The new study has also produced emission correlation equations that can be used to predict mass emission rates from individual instrument screening values. These equations allow operators to more accurately quantify actual emissions from their site rather than relying on generalized emission factors. This greatly improves assessment of control technologies and selection of equipment to lower fugitive hydrocarbon emissions. As the new leak definition imposed by the Clean Air Act Amendments of 1990 becomes effective, results of this study will be indispensable to operators.

Results of the study are summarized in easy-to-read graphics and easy-to-use factors. A workbook presented at the end of the report allows site operators to tailor the new factors and equations to their individual use.

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