Oxygen enrichment process

Details Oxygen enrichment process Oxygen enrichment process

1992-02-24

1999-12-21

Spitzer, Robert

Gas separation: processes

Solid sorption

Including reduction of pressure

95101, 95102, 95105, 95106, 95122, 95130, 95139, 95288, B01D 53047

Patent

active

060043784

ABSTRACT:
In an adsorptive alternating pressure process for the enrichment of air with oxygen using a molecular sieve zeolite in an adsorber, wherein adsorbed components are desorbed under a pressure below the pressure at which air separation and N.sub.2 adsorption is effected and, after desorption, the molecular sieve adsorber is at least partly returned to the air separation pressure with oxygen gas produced in countercurrent to the air separation gas flow, the improvement which comprises cooling product gas and covering the molecular sieve adsorber with the cooled product gas.

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