Process for removal of sulfur and ash from coal

Details Process for removal of sulfur and ash from coal Process for removal of sulfur and ash from coal

1979-06-19

1981-06-02

Dees, Carl F.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

44 24, 209 5, C10L 900, C10L 902

Patent

active

042709270

ABSTRACT:
A process for reducing the sulfur and ash content of coal wherein coal particles are treated in an aqueous slurry with a minor amount of hydrocarbon oil to form coal-oil aggregates having modified particle size and density characteristics. The coal-oil aggregates are separated from ash and mineral matter in the slurry by size separation means. Optionally, the coal particles may be treated with a conditioning agent prior to the aggregation step. Recovered coal particles comprise a substantial part of the feed carbon values.

REFERENCES:
patent: 2293469 (1942-08-01), Maust et al.
patent: 2922521 (1960-01-01), Schranz
patent: 3000503 (1961-09-01), Reck
Convertol Process of Coal-Slurry Treatment, Thomas Fraser, Bureau of Mines Info. Cir. 7660, U.S. Dept. of Interior, 1953, all pages.

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