Utilization of low rank coal and peat

Details Utilization of low rank coal and peat Utilization of low rank coal and peat

C - Chemistry, Metallurgy

10

L

44/1

C10L 9/10 (2006.01) C10F 5/00 (2006.01) C10L 1/32 (2006.01) C10L 9/00 (2006.01)

Patent

CA 1302706

UTILIZATION OF LOW RANK COAL AND PEAT ABSTRACT OF THE DISCLOSURE Low rank coals including lignite, brown and sub-bituminous coals, and peat containing unac- ceptably high quantities of water are dried and en- riched in BTU content. The mined low rank coal is crushed to between about one-half inch and three inches in diameter and immersed in hot oil to dry the coal. The coal is then screened or centrifuged to remove excess oil and the resulted oil impreg- nated dried coal has a much higher BTU content. The dried high BTU low rank coal may be then pow- dered and utilized to form a coal-water liquid fuel.

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