Hydrogen recovery by adsorbent membranes
US5354547A · kind A · utility
127Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 1992 |
| Grant date | Oct 11, 1994 |
| Priority date | — |
| Expiry date | Aug 3, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B2203/048
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A composite semipermeable membrane comprising microporous adsorbent material supported by a porous substrate is operated in series with a pressure swing adsorption (PSA) system and the PSA reject gas is used as a sweep gas to improve membrane performance. The integrated membrane-PSA system is particularly useful for recovering high-purity hydrogen from a mixture of hydrogen and hydrocarbons, and is well-suited for integration with a steam-methane reformer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.