Process for the production of a gas having a substantial oxygen content
US5261947A · kind A · utility
4Cited by
11References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1992 |
| Grant date | Nov 16, 1993 |
| Priority date | — |
| Expiry date | Oct 16, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B2210/0046
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The selective adsorption of nitrogen from air is used in a system including a number of adsorbers, to give oxygen enriched gas at elevated pressure, the adsorber is regenerated by depressurization under atmospheric pressure with a pump and by repressurization with oxygen enriched gas. The pumping duration is at most equal to the duration of the production step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.