Continuous process for the removal of hydrogen sulfide from a gaseous stream
US4765873A · kind A · utility
10Cited by
9References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 6, 1985 |
| Grant date | Aug 23, 1988 |
| Priority date | — |
| Expiry date | Dec 6, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B17/05
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for removing hydrogen sulfide from a gaseous stream containing hydrogen sulfide by contacting said stream with an aqueous solution of ammonium hydroxide to produce ammonium sulfide; converting said ammonium sulfide to an ammonium polysulfide intermediate in an electrolytic cell at ambient temperature and pressure; and oxidizing said ammonium polysulfide to sulfur in a heating zone utilizing an oxygen containing gas sparge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.