Method of and apparatus for the desulfurization of flue gas of a coal-fired combustion process
US4509436A · kind A · utility
15Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1983 |
| Grant date | Apr 9, 1985 |
| Priority date | — |
| Expiry date | Sep 30, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23J2900/15081
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Flue gas from a coal-fired combustion to which a dry sulfur-binding additive is supplied, after cooling is subjected to filtration to remove additive ash therefrom. According to the invention, cooled additive ash is fed to at least a portion of the flue gas to reduce the temperature thereof approximately to the water dewpoint, thereby promoting the sulfur-binding reaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.