Process for producing high purity oxygen gas from air
US4985052A · kind A · utility
19Cited by
20References
2Claims
0Family size
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Key dates
| Filing date | Jul 18, 1988 |
| Grant date | Jan 15, 1991 |
| Priority date | — |
| Expiry date | Jul 18, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for producing a high purity oxygen from air by PSA which comprises connecting a first adsorption unit packed with carbon molecular sieve and a second adsorption unit packed with zeolite molecular sieve in series, conducting PSA operation separately in each of the units during the same operation cycle time, accumulating the desorption gas from the first adsorption unit in a receiver and then introducing the resulting desorption gas to the second unit as a raw material gas and to the first unit as a rinse gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.