Two stage pressure swing adsorption process

Details Two stage pressure swing adsorption process Two stage pressure swing adsorption process

1998-03-17

1999-11-30

Spitzer, Robert H.

Gas separation: processes

Solid sorption

Including reduction of pressure

95101, 95105, 95140, 423247, B01D 53053

Patent

active

059935170

ABSTRACT:
High purity carbon monoxide is separated from a gas stream containing carbon monoxide, carbon dioxide, methane, hydrogen and possibly other impurities by a two-stage pressure swing adsorption process carried out in a series of adsorption vessels containing adsorbent which adsorbs carbon monoxide more readily than other components of the gas stream. The first adsorption vessel in the series is cocurrently purged with nonadsorbed product stream from the second vessel and the purge effluent from the first stage adsorption vessels is reintroduced into the first adsorption vessels as feed gas.

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