Pollutant emission control sorbents and methods of manufacture
US7575629B2 · kind B2 · utility
12Cited by
32References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2005 |
| Grant date | Aug 18, 2009 |
| Priority date | — |
| Expiry date | Jun 4, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2991
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Sorbents for removal of mercury and other pollutants from gas streams, such as a flue gas stream from coal-fired utility plants, and methods for their manufacture and use are disclosed. The methods include mixing fly ash particles with a sulfide salt and a metal salt to form a metal sulfide on the outer surface of the fly ash particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.