Coal burning method to reduce particulate and sulfur emissions

Details Coal burning method to reduce particulate and sulfur emissions Coal burning method to reduce particulate and sulfur emissions

1979-06-11

1980-11-11

Ruehl, Charles A.

Furnaces

Process

Treating fuel constituent or combustion product

110347, F23K 102, F23N 300

Patent

active

042326150

ABSTRACT:
A method is disclosed for burning a pulverized carbonaceous material containing sulfur and ash. According to this method, a slurry is formed containing the carbonaceous material, water and a reagent adapted to react during combustion with the sulfur in the material. The slurry is burned in a first stage with less than 100% theoretical air and preferably at a temperature below about 1100.degree. C. The products of combustion from the first stage are removed to a second stage and burned with additional air.

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J. W. Mellor-Inorganic and Theoretical Chemistry--vol. X, pp. 282-284--1930.

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