Two-stage gas washing method applying sulfide precipitation and alkaline absorption
US9272239B2 · kind B2 · utility
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8References
24Claims
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Key dates
| Filing date | Aug 31, 2012 |
| Grant date | Mar 1, 2016 |
| Priority date | — |
| Expiry date | Aug 29, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P30/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed is a method relating to hydrocarbon production by gasification of carbonaceous material, for example, a two-stage gas washing method as a part of gas refining. Disclosed is a method for hydrogen sulfide and carbon dioxide removal from synthesis gas produced by gasification. Disclosed is a use of a combination of two chemical wash approaches. The process can be utilized as a part of biomass to liquid (BTL) process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.