Pressure swing adsorption process and system

Details Pressure swing adsorption process and system Pressure swing adsorption process and system

1989-03-22

1990-01-09

Spitzer, Robert

Gas separation

Means within gas stream for conducting concentrate to collector

55 58, 55 62, 55 68, 55 74, 55 75, 55162, 55163, 55387, 55389, B01D 5304

Patent

active

048925667

ABSTRACT:
A pressure swing adsorption process and system utilize a single adsorber for fractionating at least one constituent from a stream of a gaseous mixture fed into the adsorber and a reservoir for receiving product gas exiting the adsorber. Following a step in the process operation involving a venting of the adsorber inlet during which no product gas is withdrawn, the feed stream is shut off and remains shut off while product gas collected in the reservoir is conducted to the adsorber outlet for the purpose of equalizing the internal pressures of the adsorber and reservoir. Once the pressures are equalized, the flow of the feed stream into the adsorber is resumed and any flow of product gas between the adsorber outlet and the reservoir is shut off so that the continued feed stream flow into the adsorber raises the adsorber pressure to an elevated level. When the flow of product gas from the adsorber is subsequently permitted, the product gas exits the adsorber rapidly and the pressure levels of the adsorber and reservoir move toward equalization.

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