Process for treating a gas stream
US7575732B2 · kind B2 · utility
8Cited by
20References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 5, 2008 |
| Grant date | Aug 18, 2009 |
| Priority date | — |
| Expiry date | May 5, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/05
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Processes for selectively removing sulfur-containing compounds from a gas are described herein. The processes generally include contacting a first gas including carbon dioxide and hydrogen sulfide with a scrub solution including ammonium bisulfite and ammonium sulfite in a first contact zone to produce a first contact zone effluent liquid including ammonium thiosulfate and a first contact zone overhead gas in which the concentration of hydrogen sulfide is substantially reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.