Methods and configurations for acid gas enrichment
US7635408B2 · kind B2 · utility
155Cited by
11References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2004 |
| Grant date | Dec 22, 2009 |
| Priority date | — |
| Expiry date | Jul 13, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2256/22
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Hydrogen sulfide is selectively enriched from an acid gas (1) that comprises relatively large quantities of carbon dioxide using a configuration in which a portion of an isolated hydrogen sulfide stream is introduced into an absorber (51) operating as a carbon dioxide rejecter. The resulting concentrated hydrogen sulfide enriched solvent (4) is then further used (directly or indirectly) to absorb hydrogen sulfide from an acid feed gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.