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US 10,765,991 B2Granted
Rapid cycle pressure swing adsorption process and adsorbent laminates for use therein
AssigneeAir Products and Chemicals, Inc.
InventorsJinzhong Liu, Wu Li, Timothy Christopher Golden
Life of this patent
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Abstract
A rapid cycle pressure swing adsorption (RCPSA) air purification process, apparatus, and device for the removal of at least one of water, carbon dioxide, nitrous oxide, and one or more hydrocarbons from a feed air stream prior to cryogenic air separation.
Claims12
A process for separating air by cryogenic distillation, said process comprising the steps of:
- (i) passing a feed air stream through at least one rapid cycle pressure swing adsorption (RCPSA) device to remove at least one impurity selected from the group consisting of H2O, CO2, N2O, and one or more hydrocarbons from said feed air stream to produce purified air;
- and
- (ii) feeding said purified air through a cryogenic distillation column system to separate said purified air into oxygen and/or nitrogen products;
- wherein said process has a cycle time from 0.3 to 60 seconds.
1 more element
Dependencies are inferred from the claim text.