Title: Method for passivating particulate coal
Application Number: 86108589 Application Date: 1986.11.20
Publication Number: 1012351 Publication Date: 1987.07.29
Approval Pub. Date: 1991.08.07 Granted Pub. Date: 1991.08.07
International Classifi-cation: C10L9/00
Applicant(s) Name: Gulf Canada Corp. Address:
Inventor(s) Name: Frank Souhrada;Gerhard J.A. Kennepohl
Attorney & Agent: LUO CAIXI WEI JINXI
Abstract:
    A method is disclosed for drying and passivating wet coals, for example bituminous, subbituminous or lignite. The wet coal is introduced into a heating zone at a controlled rate, then is contacted with a heavy hydrocarbonaceous treatment material having a softening point of at least 60 DEG C. The particles and treatment material are simultaneously intimately mixed and are heated to a temperature of at least 200 DEG C. but below the coal decomposition temperature while being moved along the heating zone in a plug flow manner. The particles are then cooled in a cooling zone.
Time: 9
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