Method of processing low rank coal

Details Method of processing low rank coal Method of processing low rank coal

1982-02-10

1983-09-13

Dees, Carl F.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

44 6, 44 51, 208 8LE, C10L 908, C10L 532, C10L 132

Patent

active

044039964

ABSTRACT:
Method of processing low rank coals which comprises steps of classifying crushed low rank coals into middle sized lumps and minute particles, subjecting the middle sized lumps to a non-evaporating dehydration treatment to produce low moisture content coals, separating ash content from the minute particles and then at least partly liquefying the minute particles to produce liquefied oil, and mixing the liquefied oil with the low moisture content coals to thereby produce low moisture coal-oil slurry. The method makes it possible to utilize even small sized particles of coal in a practical manner.

REFERENCES:
patent: 1390232 (1921-09-01), Bates
patent: 3985517 (1976-10-01), Johnson
patent: 4081251 (1978-03-01), Colli
patent: 4159897 (1979-07-01), Doehlert

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