Process using recyclable sorbents for the removal of sox from flue gases and other gas streams
US5785938A · kind A · utility
15Cited by
10References
10Claims
0Family size
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Key dates
| Filing date | Aug 2, 1996 |
| Grant date | Jul 28, 1998 |
| Priority date | — |
| Expiry date | Aug 2, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B17/78
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for removing and then capturing noxious sulfur oxides from gas streams, particularly from the flue gases of coal-burning power plants, using Ni-containing heated layered double hydroxide (LDH) as recyclable sorbents. The sorbent compositions contain metal components that form stable metal sulfites and sulfates at one temperature, but are decomposed at a higher temperature to regenerate the sorbent material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.