Process for the purification of combustion fumes
US7910076B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2007 |
| Grant date | Mar 22, 2011 |
| Priority date | — |
| Expiry date | Dec 19, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2251/502
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for the removal of heavy metals from flue gas deriving from combustion processes comprising the following steps: a) optional removal by filtration of solid particles or of particulate of heavy metals or their compounds, having an average diameter higher than 10 micron; b) flue gas washing performed with an aqueous phase and transfer of the heavy metals or their compounds to the aqueous phase; c) flue gas cooling and partial condensation of the steam contained in the flue gas and separation of a condensed phase; d) discharge of the flue gases substantially free from heavy metals or their compounds into the environment; f) discharge of the aqueous phase substantially free from heavy metals or their compounds into the environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.