Method for recovery of CO2 from gas streams
US7056482B2 · kind B2 · utility
131Cited by
11References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2003 |
| Grant date | Jun 6, 2006 |
| Priority date | — |
| Expiry date | Dec 16, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for recovering CO2 from a feed gas stream comprises treating the feed gas stream with a regenerated absorbent comprising at least one tertiary amine absorbent having a pKa for the amino function of from about 6.5 to about 9 in the presence of an oxidation inhibitor to obtain a CO2 rich stream and subsequently treating the CO2 rich stream to obtain the regenerated absorbent and a CO2 rich product stream. The feed gas stream may also include SO2 and/or NOx.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.