Removal of mercury emissions
US9669351B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2016 |
| Grant date | Jun 6, 2017 |
| Priority date | — |
| Expiry date | Mar 24, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23J2219/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for more efficiently removing pollutant gases from flue gases of a solid-fueled steam generator includes storing a silo a carbonaceous sorbent in a powdered form; extracting a superheated steam from a superheated steam source; and reducing a temperature, pressure and moisture content of the superheated steam to provide a processed steam of a desired pressure, temperature and moisture content. The method further includes providing a sorbent mill receiving the carbonaceous sorbent and the processed steam, wherein the sorbent mill is operable to de-agglomerate and comminute the carbonaceous sorbent using the processed steam to provide a processed sorbent. Further the method includes injecting the processed sorbent into the flue gases at a desired location in the solid-fueled steam generator thereby adsorbing the pollutants therefrom; and collecting and thereby remove the carbonaceous sorbent from the flue gas fluidly downstream from the desired location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.