Vacuum swing adsorption process with mixed repressurization and provide product depressurization
US5411578A · kind A · utility
55Cited by
24References
12Claims
0Family size
Assignee
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Key dates
| Filing date | May 10, 1994 |
| Grant date | May 2, 1995 |
| Priority date | — |
| Expiry date | May 10, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2259/403
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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 with two cocurrent depressurizations, first to provide product and then to provide a purge gas, 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.