Fuel and related compositions – Coal treating process or product thereof – Removal of undesirable
Patent
1994-02-03
1994-09-27
Medley, Margaret
Fuel and related compositions
Coal treating process or product thereof
Removal of undesirable
44621, 209171, C10L 900
Patent
active
053504305
ABSTRACT:
An improved process is described for agglomerating ground coal in which a bridging oil is used as the agglomerating vehicle. This bridging oil is a mixture of a heavy gas oil obtained from coal/oil coprocessing and a heavy hydrocarbon oil, such as bitumen or heavy oil, preferably mixed in the proportion of about 23-40% heavy hydrocarbon oil and 60-77% heavy gas oil. The agglomerated product is mixed with additional heavy oil or bitumen and it becomes the feedstock to a coal/oil coprocessor, with heavy gas oil being formed as one of the product streams. At least part of this heavy gas oil product stream is recycled to the agglomeration stage as the heavy gas oil component of the bridging oil. This agglomeration procedure has the advantage of providing an agglomerate of excellent quality, while carrying out the agglomeration in a short time at ambient temperature and using less than 10% by weight of bridging oil.
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Capes C. Edward
Coleman Richard D.
Ikura Michio
McCracken Thomas W.
Toll Floyd N.
Energy Mines and Resources-Canada
Medley Margaret
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