Hybrid fluidized bed combuster
US4325327A · kind A · utility
67Cited by
10References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 23, 1981 |
| Grant date | Apr 20, 1982 |
| Priority date | — |
| Expiry date | Feb 23, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23C10/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A first atmospheric bubbling fluidized bed furnace is combined with a second turbulent, circulating fluidized bed furnace to produce heat efficiently from crushed solid fuel. The bed of the second furnace receives the smaller sizes of crushed solid fuel, unreacted limestone from the first bed, and elutriated solids extracted from the flu gases of the first bed. The two-stage combustion of crushed solid fuel provides a system with an efficiency greater than available with use of a single furnace of a fluidized bed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.