Process for de-acidifying a gas for production of concentrated acid gases
US5797981A · kind A · utility
22Cited by
12References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1997 |
| Grant date | Aug 25, 1998 |
| Priority date | — |
| Expiry date | Nov 7, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/1456
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of treating a gas, for example, natural gas containing at least one hydrocarbon and at least one acid gas to remove the acid gas from the natural gas and to produce at least one concentrated acid gas, wherein the gas is subjected to at least two stages of absorption using polar solvents having different properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.