Control of pyrite addition in coal liquefaction process

Details Control of pyrite addition in coal liquefaction process Control of pyrite addition in coal liquefaction process

1981-07-15

1982-12-21

Gantz, Delbert E.

Mineral oils: processes and products

Products and compositions

Lubricating oils

C10G 106

Patent

active

043648185

ABSTRACT:
Pyrite addition to a coal liquefaction process (22, 26) is controlled (118) in inverse proportion to the calcium content of the feed coal to maximize the C.sub.5 --900.degree. F. (482.degree. C.) liquid yield per unit weight of pyrite added (110). The pyrite addition is controlled in this manner so as to minimize the amount of pyrite used and thus reduce pyrite contribution to the slurry pumping load and disposal problems connected with pyrite produced slag.

REFERENCES:
patent: 4159236 (1979-06-01), Schmid
patent: 4159238 (1979-06-01), Schmid
patent: 4161440 (1979-07-01), Brunson
patent: 4203823 (1980-05-01), Carr et al.
patent: 4222847 (1980-09-01), Carr et al.
patent: 4222848 (1980-09-01), Carr et al.
patent: 4227989 (1980-10-01), Gorbaty et al.
"Low-Rank Coal Study National Needs for Resource Development"; vol. 1, Executive Summary; Energy Resources Co., Inc.; Walnut Creek, California, 94596, DOE Contract DE-AC18-79PC10066, Pub. Nov. 1978, pp. 1,4,6,8-10,27,31,43,44-46.
"Low-Rank Coal Study National Needs for Resource Development"; Vol. III, Executive Summary; Energy Resources Co., Inc.; Walnut Creek, California 94596, Pub. Nov. 1980; pp. 648-650,678,679,710,711,713 and 715.

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