Purification of gases
US5067972A · kind A · utility
45Cited by
19References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 1990 |
| Grant date | Nov 26, 1991 |
| Priority date | — |
| Expiry date | Jan 26, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/1456
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process 10 for removing acid gas components such as CO.sub.2, H.sub.2 S and/or COS from a gas stream includes feeding the gas stream into an absorption zone 54, and passing a suitable physical solvent at elevated pressure and reduced temperature counter-currently through the zone. Acid gas components are thus absorbed from the gas stream into the solvent. The absorption zone is maintained at substantially isothermal condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.