Process of selective separation of hydrogen sulfide from gaseous mixtures containing also carbon dioxide
US4545965A · kind A · utility
33Cited by
9References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 1984 |
| Grant date | Oct 8, 1985 |
| Priority date | — |
| Expiry date | Apr 23, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/151
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
There is disclosed a process for selectively separating hydrogen sulfide from gaseous mixtures which also contain carbon dioxide by chemical absorption with a substantially anhydrous solution of a tertiary amine, such as methyl diethanolamine, and an auxiliary organic solvent, such as sulfolane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.