Natural gas deacidizing and dehydration method
US7175820B2 · kind B2 · utility
10Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2003 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Mar 14, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L3/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The natural gas is deacidized by contacting in zone 3 with a solvent containing amine in aqueous solution. The gas is then dehydrated by contacting in zone 4 with a solvent very rich in amine. After the contacting operations, the solvent containing H2S. and water is expanded in drum 9, then regenerated in column 11. Part of the regenerated solvent is sent to zone 3. Another part of the regenerated solvent is vacuum distilled in column 18 so as to produce an amine-rich solvent that is sent to zone 4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.