Sour gas combustion using in-situ oxygen production and chemical looping combustion
US9566546B2 · kind B2 · utility
4Cited by
14References
20Claims
0Family size
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Key dates
| Filing date | Jan 21, 2014 |
| Grant date | Feb 14, 2017 |
| Priority date | — |
| Expiry date | Feb 23, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E20/34
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A chemical looping combustion (CLC) process for sour gas combustion includes a number of reaction zones and is configured to provide in-situ oxygen production and in-situ removal of SO2 from a product gas stream by reacting the SO2 with a calcium-based sorbent at a location within one reaction zone. The CLC process is also configured such that the in-situ oxygen production results from the use of a metal oxide oxygen carrier which is purposely located such that it does not directly contact the sour gas, thereby eliminating the generation of undesirable sulfur-based metal oxides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.