Process for changing caking coals to noncaking coals

Details Process for changing caking coals to noncaking coals Process for changing caking coals to noncaking coals

1979-04-25

1980-11-18

Dees, Carl F.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

44 1SR, C10L 902, C10L 906

Patent

active

042343194

ABSTRACT:
Caking coals are treated in a slurry including alkaline earth metal hydroxides at moderate pressures and temperatures in air to form noncaking carbonaceous material. Hydroxides such as calcium hydroxide, magnesium hydroxide or barium hydroxide are contemplated for slurrying with the coal to interact with the agglomerating constituents. The slurry is subsequently dewatered and dried in air at atmospheric pressure to produce a nonagglomerating carbonaceous material that can be conveniently handled in various coal conversion and combustion processes.

REFERENCES:
patent: 3357896 (1967-12-01), Gasior et al.
patent: 4092125 (1978-05-01), Stambaugh et al.
patent: 4095955 (1978-06-01), Stambaugh et al.
patent: 4099929 (1978-07-01), Tippmer et al.
Feldman et al., A Novel Approach to Coal Gasification Using Chemically Incorporated CaO (Phase II), Nov. 11, 1977, Columbus, Ohio, pp. 1-30.
Coal Pretreatment in Fluidized Bed, Kavlick et al., ACS 152nd Meeting N. Y., N. Y. Sep. 1966 pp. 9-17.
Feldman et al., A Novel Approach to Coal Gasification Using Chemically Incorporated Catalysts, Batelle Columbus Labs. Aug. Monthly Report, Sep. 15, 1978.

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