| 摘要 |
A process is described for two-stage coprocessing of coal and a heavy hydrocarbon, such as bitumen from tar sands. A slurry of the bitumen and coal is passed upwardly through a coal dissolving and hydrogenation zone and the top discharge from the coal dissolving zone, containing partially solubilized coal and ash, is passed through a confined hydrocracking zone. The effluent emerging from the hydrocracking zone is separated into a gaseous stream containing a wide boiling range of material and a liquid stream containing heavy hydrocarbons. This process permits maximum yields from both coal and bitumen, while suppressing coke formation during hydrocracking.
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