PSA process and system

Details PSA process and system PSA process and system

1997-12-09

1999-12-28

Spitzer, Robert

Gas separation: processes

Solid sorption

Including reduction of pressure

95101, 95105, 95117, 95139, B01D 53053

Patent

active

060076062

ABSTRACT:
A PSA process involving the storage of products of various purities in segregated storage tanks for subsequent usage is disclosed. Products of increasing purities, admitted at the product end of the bed, are used during purging and repressurization steps. In addition, different composition streams collected at the feed end of the bed during the countercurrent depressurization step are admitted at the feed end of the bed, in the order of increasing product component content, during the rising pressure step(s). This cycle gives higher recovery and lower bed size factor than prior art PSA cycles.

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