Method of coal upgrading

Details Method of coal upgrading Method of coal upgrading

C - Chemistry, Metallurgy

10

L

44/1

C10L 9/08 (2006.01) C10L 9/00 (2006.01) C10L 9/10 (2006.01)

Patent

CA 1202179

- 1 - ABSTRACT This invention relates to a method of converting a low-rank coal to a high-rank coal that has reduced hygro- scopicity as well as increased heating value and lowered moisture content during and after transport or storage. The invention involves heat treating the coal for dehydrating it and distilling off tar therefrom. The tar is then vaporized and used to coat the heat-treated coal surfaces, whereby such surfaces are coated uniformly.

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