Hybrid parallel / serial process for carbon dioxide capture from combustion exhaust gas using a sweep-based membrane separation step
US9005335B2 · kind B2 · utility
2Cited by
29References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2012 |
| Grant date | Apr 14, 2015 |
| Priority date | — |
| Expiry date | May 7, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E20/32
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A gas separation process for treating an exhaust gas stream from a combustion processes. The invention involves routing a first portion of the exhaust stream to a carbon dioxide capture step, and flowing a second portion of the exhaust stream and at least a portion of an off-gas stream from the carbon dioxide capture step across the feed side of a membrane, while flowing a sweep gas stream, usually air, across the permeate side, and then passing the resulting permeate sweep stream back to the combustor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.