Drying low rank coal and retarding spontaneous ignition

Details Drying low rank coal and retarding spontaneous ignition Drying low rank coal and retarding spontaneous ignition

1987-12-10

1988-10-04

Dees, Carl F.

Fuel and related compositions

Particulate

Treated to reduce spontaneous ignition

C10L 500

Patent

active

047753900

ABSTRACT:
Coal is rendered less subject to abrasion and disintegration by reducing it to a 0.2 to 0.5-inch particle size and drying it in a drying zone at a temperature of 200.degree. to 230.degree. F. for 3-7 minutes while simultaneously applying a treating agent which can be a light cycle oil, heavy cycle oil, clarified slurry oil, a petroleum or coal derived distillate or residuum, a solution of durene in gasoline and mixtures of two or more of the preceding.

REFERENCES:
patent: 4201657 (1980-05-01), Anderson et al.
patent: 4265637 (1981-05-01), Anderson
patent: 4396394 (1983-08-01), Li et al.
patent: 4402707 (1983-09-01), Wunderlich
patent: 4524227 (1985-06-01), Fowles et al.
patent: 4524228 (1985-06-01), Fowles et al.
patent: 4524231 (1985-06-01), Fowles et al.

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