Process for removing total reduced sulfur compounds from gaseous stream
US5417946A · kind A · utility
5Cited by
14References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1993 |
| Grant date | May 23, 1995 |
| Priority date | — |
| Expiry date | Dec 30, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/52
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for removing Total Reduced Sulfur compounds from a gaseous stream such as those containing natural gas, industrial gas, and digester gas by oxidation with a fine flocculent acidic catalyst slurry which is regenerable during the process by pH adjustment in the absence of added heat. The catalyst slurry comprises MnO.sub.2, Mn.sub.2 O.sub.3, and Mn.sub.3 O.sub.4 having pH in the range from about 0.5 to about 6.5 and is prepared by oxidizing a divalent manganous salt in an aqueous solution having a pH in the range from about 8.0 to about 13.5 with an oxygen-containing gaseous stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.