Pressure swing absorption with recycle of void space gas

Details Pressure swing absorption with recycle of void space gas Pressure swing absorption with recycle of void space gas

1994-02-16

1995-07-04

Spitzer, Robert

Gas separation: processes

Selective diffusion of gases

Selective diffusion of gases through substantially solid...

95103, 95138, 95903, B01D 53053, B01D 5322

Patent

active

054296641

ABSTRACT:
The present invention is a pressure swing adsorption process for separating a more strongly adsorbed gas component from a less strongly adsorbed gas component in a feed gas mixture at higher recoveries and productivity and less capital cost by the use of void space gas recycle, membrane based nitrogen enrichment of feed gas and the elimination of pressure equalization steps. The process is particularly amenable to air separation wherein nitrogen product is recovered and an oxygen byproduct is removed.

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