Method in fluidized bed combustion

Details Method in fluidized bed combustion Method in fluidized bed combustion

1987-08-26

1989-08-29

Favors, Edward G.

Liquid heaters and vaporizers

Miscellaneous

110245, 16510416, 431 7, F22B 100

Patent

active

048606936

ABSTRACT:
Method in combusting solid fuel in a first fluidized bed (11) and a second fluidized bed (12) located laterally of the first bed, said beds being mutually separated but communicating with each other. Fuel particles are transferred from the first bed to the second bed. The first bed is operated substoichiometrically and the second bed is operated with a large excess of air. Flue gas from the first bed is diverted in a common freeboard over the beds to be directed in counterflow towards the flue gas from the second bed. Heat power is recovered solely from the second bed.

REFERENCES:
patent: 3893426 (1985-07-01), Bryers
patent: 3921590 (1975-11-01), Mitchell et al.
patent: 4279207 (1981-07-01), Wormser
patent: 4416418 (1983-11-01), Goodstine
patent: 4475884 (1984-10-01), Shang
patent: 4548138 (1985-10-01), Korenberg
patent: 4594967 (1986-06-01), Wolowodiuk
patent: 4656972 (1987-04-01), Shimoda
patent: 4665864 (1987-05-01), Seshamani et al.
patent: 4688521 (1987-08-01), Korenberg
Japanese Abstract 56-42008, published 24 Jun. 1981.
Japanese Abstract 56-157707, published 17 Mar. 1982.
Japanese Abstract 56-36635, published 29 May 1979.
Patent Abstracts of Japan, vol. 4, Mar. 1980, Abstract of JP 55-6140 published Jan. 17, 1980.

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