Hybrid fluidized bed combuster

Details Hybrid fluidized bed combuster Hybrid fluidized bed combuster

1981-02-23

1982-04-20

Yuen, Henry C.

Liquid heaters and vaporizers

Miscellaneous

110245, 110106, 110263, F22B 100

Patent

active

043253270

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.

REFERENCES:
patent: 2282370 (1942-05-01), McConechy
patent: 3888193 (1975-06-01), Kishigami et al.
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patent: 3921590 (1975-11-01), Mitchell et al.
patent: 3955512 (1976-05-01), Martin et al.
patent: 4159682 (1979-07-01), Fitch et al.
patent: 4235174 (1980-11-01), Spurrell
patent: 4259911 (1981-04-01), Jones
patent: 4287838 (1981-09-01), Frosch

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