Integrated warm gas desulfurization and gas shift for cleanup of gaseous streams
US7935324B2 · kind B2 · utility
3Cited by
17References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2008 |
| Grant date | May 3, 2011 |
| Priority date | — |
| Expiry date | Dec 4, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/151
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention involves a catalytic process for purifying a gas stream comprising purifying the gas stream at a temperature from about 250° to 550° C. by removing sulfur compounds and including a gas shift reaction to convert carbon monoxide to carbon dioxide to produce a partially purified gas stream. The warm gas stream purification involves COS hydrolysis and hydrogenation to H2S, the removal of H2S, and a CO gas shift to convert CO to CO2 to produce a partially purified stream. Then the carbon dioxide and other impurities are removed from the partially purified gas stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.