Process for reducing gaseous sulfur dioxide content of flue gases by preheating coals prior to burning such coals and by controlling combustion temperature levels
US4746498A · kind A · utility
2Cited by
2References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 1984 |
| Grant date | May 24, 1988 |
| Priority date | — |
| Expiry date | Aug 27, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23K1/04
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The present invention contemplates a process for reducing the gaseous sulfur dioxide content of flue gases by either or both preheating coal prior to burning the preheated coal and controlling the combustion temperature level to control the amount of sulfur being converted to sulfates and remaining in the ash residue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.