Absorbing solution, method and device for absorbing CO2 or H2S or both
US8147593B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 3, 2006 |
| Grant date | Apr 3, 2012 |
| Priority date | — |
| Expiry date | Apr 13, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An absorbing solution according to the present invention is an absorbing solution that absorbs CO2 or H2S in gas or both of CO2 and H2S. The absorbing solution is formed by adding desirably 1 to 20 weight percent of tertiary monoamine to a secondary-amine composite absorbent such as a mixture of secondary monoamine and secondary diamine. Consequently, it is possible to control degradation in absorbing solution amine due to oxygen or the like in gas. As a result, it is possible to realize a reduction in an absorption loss, prevention of malfunction, and a reduction in cost. This absorbing solution is suitably used in an apparatus for removing CO2 or H2S or both of CO2 and H2S.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.