Staged cascade fluidized bed combustor
US4476816A · kind A · utility
24Cited by
7References
9Claims
0Family size
Inventors
Key dates
| Filing date | Oct 25, 1982 |
| Grant date | Oct 16, 1984 |
| Priority date | — |
| Expiry date | Oct 25, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF22B31/0023
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A fluid bed combustor comprising a plurality of fluidized bed stages interconnected by downcomers providing controlled solids transfer from stage to stage. Each stage is formed from a number of heat transfer tubes carried by a multiapertured web which passes fluidizing air to upper stages. The combustor cross section is tapered inwardly from the middle towards the top and bottom ends. Sorbent materials, as well as non-volatile solid fuels, are added to the top stages of the combustor, and volatile solid fuels are added at an intermediate stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.