Use of ferrous sulfide suspension for the removal of mercury from flue gases
US9034285B1 · kind B1 · utility
3Cited by
18References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2014 |
| Grant date | May 19, 2015 |
| Priority date | — |
| Expiry date | Feb 28, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2002/77
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A ferrous sulfide suspension that includes at least FeSm and Al(OH)3 and which can be used to reduce mercury emissions in flue gases. Through a combination of complex chemical reactions, precipitation, co-precipitation, and surface adsorption the ferrous sulfide suspension of the present invention effectively removes mercury from gaseous streams while concurrently preventing mercury re-emission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.