Gas separation processes using membrane with permeate sweep to recover reaction feedstocks
US8114192B2 · kind B2 · utility
3Cited by
16References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 11, 2009 |
| Grant date | Feb 14, 2012 |
| Priority date | — |
| Expiry date | Apr 16, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S585/903
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A gas separation process for treating off-gas streams from reaction processes, and reaction processes including such gas separation. The invention involves flowing the off-gas across the feed side of a membrane, flowing a sweep gas stream, usually air, across the permeate side, and passing the permeate/sweep gas mixture to the reaction. The process recovers unreacted feedstock that would otherwise be lost in the waste gases in an energy efficient manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.