Method of removing hydrogen sulfide from gases
US4431616A · kind A · utility
9Cited by
5References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 22, 1982 |
| Grant date | Feb 14, 1984 |
| Priority date | — |
| Expiry date | Dec 22, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/1493
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improved process for the removal of H.sub.2 S from sour gas streams in which the H.sub.2 S is converted to sulfur by a polyvalent metal chelate solution is disclosed, the process being characterized by the washing of the product sulfur with an aqueous wash solution, and recovery of the acid precursor of the chelating agent from the washing solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.