Method for reducing heavy metals in flue gases
US7585353B2 · kind B2 · utility
1Cited by
5References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 14, 2005 |
| Grant date | Sep 8, 2009 |
| Priority date | — |
| Expiry date | Feb 12, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J20/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for reducing heavy metals, in particular in mercury, present in flue gases, includes the step of bringing the flue gases into contact with a particular class of sorbent material in the dry state. A preferred class of dry sorbent materials can be provided from a mineral compound selected from among halloysites and phyllosilicates of the palygorskite subgroup and the sepiolite subgroup of the palygorskite-sepiolite group according to the Dana classification. Mineral compounds of this group have been shown to provide a reduction in heavy metals, in particular in mercury, present in flue gases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.