Method of and apparatus for the desulfurization of flue gas of a

Details Method of and apparatus for the desulfurization of flue gas of a Method of and apparatus for the desulfurization of flue gas of a

1983-09-30

1985-04-09

Favors, Edward G.

Furnaces

Process

Treating fuel constituent or combustion product

110204, 110216, 110263, 110347, F23J 1100

Patent

active

045094365

ABSTRACT:
Flue gas from a coal-fired combustion to which a dry sulfur-binding additive is supplied, after cooling is subjected to filtration to remove additive ash therefrom. According to the invention, cooled additive ash is fed to at least a portion of the flue gas to reduce the temperature thereof approximately to the water dewpoint, thereby promoting the sulfur-binding reaction.

REFERENCES:
patent: 3675600 (1972-07-01), Jones
patent: 3927627 (1975-12-01), Brunn
patent: 4182274 (1980-01-01), Williams
patent: 4262610 (1981-04-01), Hein et al.
patent: 4270467 (1981-06-01), Drake
patent: 4272496 (1981-06-01), Powell
patent: 4312280 (1982-01-01), Shearer et al.

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