Methods and apparatuses for removing mercury-containing material from emissions of combustion devices, and flue gas and flyash resulting therefrom
US7270063B2 · kind B2 · utility
21Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2004 |
| Grant date | Sep 18, 2007 |
| Priority date | — |
| Expiry date | Nov 16, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/64
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of removing mercury or mercury-containing material from flue gas produced by a coal-burning main furnace includes feeding coal, which contains mercury or mercury-containing material, to a main furnace which produces flue gas. The method further includes feeding the coal to an auxiliary burner which produces a slipstream of flyash, feeding the slipstream of flyash from the auxiliary burner into the flue gas produced by the main furnace, and introducing a mercury-active oxidant to the coal being fed to the auxiliary burner, the combustion air fed to the auxiliary burner, and/or the flyash.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.