Fuel and related compositions – Liquid fuels – Aluminum or heavy metal – other than lead – containing
Patent
1983-07-15
1985-06-18
Dees, Carl F.
Fuel and related compositions
Liquid fuels
Aluminum or heavy metal, other than lead, containing
44 1G, 44 6, C10L 908, C10L 532
Patent
active
045239274
ABSTRACT:
This invention relates to a method of converting a low-rank coal to produce a high-rank coal which has reduced hygroscopicity as well as increased heating value and lowered moisture content during and after transport or storage. The invention comprises the steps of heat-treating coal for dehydrating the coal and distilling off tar therefrom, vaporizing the tar, and coating the heat-treated coal surface with the tar vapor, whereby the coal surface is coated uniformly.
REFERENCES:
patent: 1912697 (1933-06-01), Fife
patent: 3980447 (1976-09-01), Franke et al.
patent: 4249909 (1981-02-01), Comolli
Kuge Toshio
Muroi Katsumi
Nakamura Yoichi
Nogita Shunsuke
Yokoyama Hiroshi
Dees Carl F.
Hitachi , Ltd.
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