C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
196/5.3
C10G 1/06 (2006.01) C10G 1/08 (2006.01) C10J 3/46 (2006.01)
Patent
CA 1108080
ABSTRACT OF THE DISCLOSURE A process for converting solid, hydrocarbonaceous materials, such as coal, to liquid and gaseous products comprising: (1) preparing a slurry from slurry oil, a hydrogenation catayst and the hydrocarbonaceous material; (2) hydrogenating the hydrocarbonaceous material to liquid and gaseous hydrogenation products, the liquid hydrogenation product containing suspended particles of ash and catalyst; (3) gravitationally separating the liquid hydrogenation product into a first stream and a second stream, the first stream having both a lower ash concentration than the liquid hydrogenation product and a greater catalyst:ash ratio than the second stream; (4) recycling at least a portion of the first stream for use as at least a portion of the slurry oil and thereby recycling at least a portion of the catalyst; (5) extractively separating the second stream into a third stream essentially free of ash and at least a portion of which is recycled for use as at least a portion of the slurry oil, and a fourth stream containing essentially all of the ash of the second stream; and (6) recovering said liquid and gaseous products from the hydrogenation products. This process is characterized by an economical, highly effective catalyst system, sequential gravitational and extractive solids separations for the generation and recycle of slurry oil, and low-ash fuel and chemical feedstock manufacture.
309285
Moll Norman G.
Quarderer George J.
Smart & Biggar
The Dow Chemical Company
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