Integrated coal cleaning process

Details Integrated coal cleaning process Integrated coal cleaning process

1984-06-27

1985-11-12

Yuen, Henry C.

Furnaces

Process

Burning pulverized fuel

110232, 110342, 44 51, F23G 504

Patent

active

045520771

ABSTRACT:
An integrated method of removing alkali metal compounds from sulfur-bearing coal is disclosed. The coal is comminuted (4) and mixed (10) with water (8) to form a slurry (12). In the preferred embodiment, the slurry (12) is comingled with an SO.sub.2 -bearing gas (16) in a transport pipeline (52) to form an acidic slurry which dissolves the alkali compounds out of the coal. The slurry is then separated (22) into a solid portion (24) and a liquid portion (26), the solid portion (24) being combusted (34) to form the SO.sub.2 -bearing gas (16).

REFERENCES:
patent: 4191115 (1980-03-01), Yang et al.
patent: 4213407 (1980-07-01), Headley
patent: 4387654 (1983-06-01), Binasik et al.
patent: 4462794 (1984-07-01), Pfeffer, III et al.

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