Process and amine-solvent absorbent for removing acidic gases from gaseous mixtures
US4240923A · kind A · utility
16Cited by
5References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 1978 |
| Grant date | Dec 23, 1980 |
| Priority date | — |
| Expiry date | May 30, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/1493
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Acidic gases are substantially removed from a normally gaseous mixture by a process comprising contacting the normally gaseous mixture with an amine-solvent liquid absorbent comprising (i) an amine comprised of at least about 50 mol % of a sterically hindered amine, and (ii) a solvent for said amine mixture which is also a physical absorbent for said acidic gases. The liquid absorbent may also include up to about 35 weight percent water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.