Process for separating carbon dioxide from flue gas using sweep-based membrane separation and absorption steps
US8246718B2 · kind B2 · utility
9Cited by
14References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2010 |
| Grant date | Aug 21, 2012 |
| Priority date | — |
| Expiry date | Sep 13, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E20/34
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A gas separation process for treating flue gases from combustion processes, and combustion processes including such gas separation. The invention involves routing a first portion of the flue gas stream to be treated to an absorption-based carbon dioxide capture step, while simultaneously flowing a second portion of the flue gas across the feed side of a membrane, flowing a sweep gas stream, usually air, across the permeate side, then passing the permeate/sweep gas to the combustor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.