Process and amine-solvent absorbent for removing acidic gases from gaseous mixtures
US4112051A · kind A · utility
168Cited by
12References
34Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 19, 1977 |
| Grant date | Sep 5, 1978 |
| Priority date | — |
| Expiry date | Dec 19, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- 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.