Indirect cooling of primary impact type solids separator elements in a CFB reactor
US5809940A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 1997 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | May 23, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D45/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improved CFB reactor or combustor arrangement has at least a first and a second group of impact type particle separators or U-beams with cooling surfaces located adjacent and immediately upstream of the second group of U-beams which serve to cool flue gas/solids flowing through the CFB before it reaches the second group of U-beams. By reducing the gas temperature in the vicinity of and entering the second group of U-beams, the U-beams can be made of less expensive materials and are thus less expensive to produce and maintain. The heat absorbed by the local cooling surfaces can be applied to heat a working fluid supplied to a turbine or other process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.