Gas separation: processes – Solid sorption – Including reduction of pressure
Patent
1993-03-25
1994-07-19
Spitzer, Robert
Gas separation: processes
Solid sorption
Including reduction of pressure
95105, 95119, 95122, 95130, 95139, B01D 5304
Patent
active
053305612
ABSTRACT:
A process for separating a feed gas mixture into a more strongly adsorbable component and a less strongly adsorbable component in a plurality of adsorbent beds containing an adsorbent selective for the more strongly adsorbable component using pressure equalization between beds after initial depressurization to provide a purge gas, using countercurrent evacuation wherein at least two adsorption beds are countercurrently evacuated simultaneously in overlapping countercurrent evacuation steps in the plurality of adsorption beds, and using a combination of less strongly adsorbable component and feed gas mixture to repressurize the adsorbent bed. Oxygen product can be recovered from air at high recovery using the process.
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Kumar Ravi
Naheiri Tarik
Watson Charles F.
Air Products and Chemicals Inc.
Chase Geoffrey L.
Marsh William F.
Simmons James C.
Spitzer Robert
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