Vapor recovery system
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United States of America Patent
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-
Dec 29, 1987
Issued Date -
N/A
app pub date -
Sep 22, 1986
filing date -
Jul 1, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for the recovery of hydrocarbon vapors from an air-hydrocarbon mixture wherein the inlet air-hydrocarbon mixture is passed to an absorber vessel in which is fed a vacuum flashed liquid hydrocarbon absorbent to produce an absorber overhead gas stream which is passed to a solid absorbent bed. Once saturated, the adsorbed hydrocarbon on the solid adsorbent bed is removed by liquid vacuum pump regeneration, separated from the pump liquid, and returned to the system for use. Hydrocarbon free air is vented from the solid adsorbent bed during the adsorption mode.
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