Fluidized bed sulfur dioxide removal
US4309393A · kind A · utility
44Cited by
3References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 14, 1980 |
| Grant date | Jan 5, 1982 |
| Priority date | — |
| Expiry date | Oct 14, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23C10/002
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
System for reducing the emission of sulfur particularly for high sulfur coal combustion in a fluidized bed by injecting limestone into the bed and calcining the limestone in the bed to form lime, reacting a portion of the lime so formed with a portion of the SO.sub.2 generated in the bed, removing the excess of material containing lime so generated from the bed, slaking said excess lime in water, then contacting flue gases leaving the fluid bed and containing SO.sub.2 with the lime slurry so formed thereby to remove a further significant portion of the generated SO.sub.2 from the flue gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.