Upgrading method of low-rank coal

Details Upgrading method of low-rank coal Upgrading method of low-rank coal

1983-09-21

1985-12-17

Gantz, D. E.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

44 10C, 44 10F, 201 5, 201 20, 201 22, 201 6, C10L 516

Patent

active

045590605

ABSTRACT:
A upgrading method of low-rank coal containing higher ash and moisture contents into coal decreased in ash content and decreased in moisture content and heightened in heating value includes subjecting the low-rank coal to a low-temperature dry distillation treatment, pulverizing the dry-distilled low-rank coal to form a coal-water slurry and adding a binder to the slurry to effect oil agglomeration of the coal and promote separation of the ash.

REFERENCES:
patent: 4097245 (1978-06-01), Holowaty
patent: 4133647 (1979-01-01), Burke
patent: 4153419 (1979-05-01), Clayfield et al.
patent: 4234320 (1980-11-01), Verschuur
patent: 4272324 (1981-06-01), Sunami et al.
patent: 4294584 (1981-10-01), Verschuur
patent: 4362532 (1982-12-01), Wasson et al.
patent: 4389306 (1983-06-01), Nakanishi et al.
patent: 4455148 (1984-06-01), Nagata et al.
patent: 4461627 (1984-07-01), Yokoyama et al.

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