Process for separation of high purity gas from mixed gas
US4775394A · kind A · utility
33Cited by
11References
5Claims
0Family size
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Key dates
| Filing date | May 6, 1987 |
| Grant date | Oct 4, 1988 |
| Priority date | — |
| Expiry date | May 6, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/156
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In a PSA separation method, a specific gas component is selectively adsorbed from mixture gas. After flushing with gas, the gas component is recovered by desorption. This desorption is divided into initial, middle and final stages. The gas component separated at the middle stage is recovered as product gas, while the gas recovered at the initial and final stages is used as the flushing gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.