Method for removal and stabilization of mercury in mercury-containing gas streams
US6942840B1 · kind B1 · utility
122Cited by
200References
57Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 23, 2002 |
| Grant date | Sep 13, 2005 |
| Priority date | — |
| Expiry date | Dec 7, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/914
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention is directed to a process and apparatus for removing and stabilizing mercury from mercury-containing gas streams. A gas stream containing vapor phase elemental and/or speciated mercury is contacted with reagent, such as an oxygen-containing oxidant, in a liquid environment to form a mercury-containing precipitate. The mercury-containing precipitate is kept or placed in solution and reacts with one or more additional reagents to form a solid, stable mercury-containing compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.