Adsorption process to recover hydrogen from low pressure feeds
US5294247A · kind A · utility
30Cited by
13References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1993 |
| Grant date | Mar 15, 1994 |
| Priority date | — |
| Expiry date | Feb 26, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/151
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention is a process for recovering hydrogen from dilute refinery off gases using a vacuum swing adsorption process having a simultaneous cocurrent depressurization to provide purge gas for another bed under the influence of a vacuum and countercurrent depressurization to vent void space gas and/or adsorbed gas to ambient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.