Vacuum-pressure swing absorption fractionator and method of using the same
US6471744B1 · kind B1 · utility
71Cited by
19References
59Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 16, 2001 |
| Grant date | Oct 29, 2002 |
| Priority date | — |
| Expiry date | Aug 16, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2259/4533
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention involves a vacuum-pressure swing adsorption process for the separation of components of a fluid mixture. The process includes (a) transferring a fluid mixture through an adsorbent bed at an elevated pressure Ph so as to produce a purified product fluid; (b) venting the adsorbent bed down to an ambient fluid pressure Pa; (c) applying a vacuum force to the adsorbent bed to bring the adsorbent bed to a reduced pressure Pl; and (d) venting the adsorbent bed up to an ambient fluid pressure Pa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.