System and process for capture of H2S from gaseous process streams and process for regeneration of the capture agent
US8652237B2 · kind B2 · utility
17Cited by
8References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2010 |
| Grant date | Feb 18, 2014 |
| Priority date | — |
| Expiry date | Apr 6, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2252/502
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A system and process are disclosed for selective removal and recovery of H2S from a gaseous volume, e.g., from natural gas. Anhydrous organic, sorbents chemically capture H2S gas to form hydrosulfide salts. Regeneration of the capture solvent involves addition of an anti-solvent that releases the captured H2S gas from the capture sorbent. The capture sorbent and anti-solvent are reactivated for reuse, e.g., by simple distillation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.