Method of binding sulfur compounds by adding additives

Details Method of binding sulfur compounds by adding additives Method of binding sulfur compounds by adding additives

1984-12-13

1987-02-10

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

423242, 110343, 110345, C01B 1700, B01J 800

Patent

active

046422250

ABSTRACT:
A method of binding sulfur compounds which are produced as reaction products during the combustion of sulfur-containing fuels in a charging bed or fluidized bed furnace at temperatures above 1000.degree. C. The method is effected by the addition of additives. The hot flue gases exiting directly from the charging bed or fluidized bed furnace pass through a cooling zone to lower the flue gas temperature to below 1000.degree. C. After this cooling zone, the additives are introduced into the cooled-off flue gas flow via a carrier medium. The charging bed or fluidized bed furnace for carrying out this method includes cooling surfaces for cooling the hot flue gases in the cooling zone. These cooling surfaces are disposed directly above the furnace surface and below the additive introduction surface. Cooling of the flue gases in the cooling zone can be effected by blowing in low-temperature flue gas between the upper edge of the furnace surface and the lower edge of the additive introduction surface.

REFERENCES:
patent: 2718453 (1955-09-01), Beckman
patent: 3343908 (1967-09-01), Wickert
patent: 4178349 (1971-12-01), Weinert
patent: 4509436 (1985-04-01), Schrofelbauer et al.
patent: 4559211 (1985-02-01), Feldman et al.
Falkenberry et al, "SO.sub.2 Removal by Limestone Injection" Chemical Engineering Progress vol. 65, No. 12, pp. 61-66, 1969.

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