FLARE GAS RECOVERY IN OIL AND GAS REFINERIES
Abstract — Flare Gas Recovery in Oil and Gas Refineries — Environmental and economic considera-tions have increased the use of gas recovery systems. Regarding our comprehensive process evaluationin 11 oil and gas refineries, we devised practical methods to approach zero flaring. This paper presentsthe results of two case studies of reducing, recovering and reusing flare gases from the Tabriz PetroleumRefinery and Shahid Hashemi-Nejad (Khangiran) Natural Gas Refinery, both in Iran. The designconsiderations, economics of the process and system operation are studied in this paper. Flare gasesare compressed and returned to the fuel gas header for immediate use as fuel gas. Flare gas recoveryreduces noise and thermal radiation, operating and maintenance costs, air pollution and emission, andfuel gas and steam consumption. Process stability and flare tip increment without any impact on theexisting safety relief system are also the effects of the flare gas recovery system.
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