Pressure swing adsorption process
US4589888A · kind A · utility
53Cited by
13References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 5, 1984 |
| Grant date | May 20, 1986 |
| Priority date | — |
| Expiry date | Oct 5, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2259/4063
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In air separation and other gas separations employing pressure swing adsorption technology, reduced cycle times are achieved by an advantageous combination of simultaneous processing steps. The gas released upon cocurrent depressurization from higher adsorption pressure is employed simultaneously for pressure equalization and provide purge purposes. Cocurrent depressurization is also carried out at an intermediate pressure level, while countercurrent depressurization is simultaneously carried out at the opposite end of the bed being depressurized to its lower desorption pressure level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.