API PUBL 4639-1996

$27.95

Estimation of Fugitive Emissions from Petroleum Refinery Process Drains

Published By	Publication Date	Number of Pages
API	1996	195

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Description

Fugitive emissions are commonly estimated using USEPA's AP-42 emission factors. The factor for refinery process drains was developed in 1979. Since that time, modifications to drains, carried out in response to regulatory requirements, have reduced emissions, with the result that the AP-42 factor may be over-estimating actual drain emissions. This work was undertaken to address these concerns by developing a protocol to improve estimates of drain emissions. A survey of process drains was conducted at three refineries, and an evaluation carried out of the capability of existing models to predict drain emissions and important variables influencing drain emissions. Laboratory scale and pilot scale equipment were assembled to facilitate the measurement of VOC emissions from simulated drain structures under controlled conditions. Testing demonstrated almost complete mass balance closures, and repeatability of analytical determination of target compounds and their stripping efficiencies, confirming the suitability of the protocol for measuring VOC emissions from drain structures.

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