Method of capturing sulfur in coal during combustion and gasific

Details Method of capturing sulfur in coal during combustion and gasific Method of capturing sulfur in coal during combustion and gasific

1988-04-20

1990-06-26

Kratz, Peter

Gas: heating and illuminating

Processes

Fuel mixtures

48203, 48210, 110342, 110345, 110347, 122 4D, C10J 300, C10J 354

Patent

active

049360477

ABSTRACT:
A method of reducing the amount of gaseous sulfur compounds released during combustion of sulfur-containing fuel, comprising the steps of: (a) preparing a mixture of sulfur containing particulate fuel and a sulfur absorbent, such as calcium oxide, calcium hydroxide, calcium carbonate, lime, limestone, dolomite, or mixtures thereof; (b) exposing the mixture to a reducing atmosphere at a temperature of at least about 1500.degree. F., so as to convert at least a portion of the particulate fuel into a gaseous portion and a solid, char portion; and (c) combusting the char portion, thereby forming an ash containing sulfur fixed therein.

REFERENCES:
patent: 3717700 (1973-02-01), Robison et al.
patent: 3847563 (1974-11-01), Ardly et al.
patent: 4111755 (1978-09-01), Ban et al.
patent: 4232615 (1980-11-01), Brown
patent: 4262610 (1981-04-01), Heis et al.
patent: 4285283 (1981-08-01), Lyon et al.
patent: 4440546 (1984-04-01), Lancet et al.

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