Adsorption-absorption vapor recovery system

Details Adsorption-absorption vapor recovery system Adsorption-absorption vapor recovery system

1976-09-27

1978-01-03

Wyse, Thomas G.

Gas separation

Means within gas stream for conducting concentrate to collector

55 58, 55 88, B01D 5304

Patent

active

040664236

ABSTRACT:
A process for the recovery of light mixed hydrocarbon vapors from an air-hydrocarbon mixture expelled as a result of storage breathing or loading of a vented hydrocarbon vessel. The hydrocarbon vapor components are adsorbed from the mixture, thus permitting venting of the substantially hydrocarbon free air safely to the atmosphere without pollution. The adsorbed hydrocarbons are removed by subjecting the adsorbent bed to a lower pressure, and the hydrocarbon components in the resulting desorption stream are substantially adsorbed for recovery, and the remaining gases from the absorption vessel are passed through a second adsorption bed to substantially remove any hydrocarbons therein.

REFERENCES:
patent: 3648436 (1972-03-01), Schonewald et al.
patent: 3714790 (1973-02-01), Battey
patent: 3770622 (1973-11-01), Freireich et al.
patent: 3771317 (1973-11-01), Nichols
patent: 3867111 (1975-02-01), Knowles
patent: 3947258 (1976-03-01), Decker
patent: 3972201 (1976-08-01), Datis

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