Pressure swing adsorption plants
US5624477A · kind A · utility
27Cited by
20References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 16, 1994 |
| Grant date | Apr 29, 1997 |
| Priority date | — |
| Expiry date | Mar 16, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B2210/0062
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In a pressure swing adsorption plant for the production of oxygen enriched gas a pressure vessel contains a first bed of molecular sieve adsorbent located adjacent an outlet 4 of the vessel which has an optimum operating efficiency at approximately ambient temperature and a second bed 10 of molecular sieve adsorbent which has an optimum efficiency below that of ambient operating temperature located adjacent the inlet 2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.