Two-stage coal liquefaction process with petroleum- derived...

Details Two-stage coal liquefaction process with petroleum- derived... Two-stage coal liquefaction process with petroleum- derived...

C - Chemistry, Metallurgy

10

G

196/5.2

C10G 1/00 (2006.01)

Patent

CA 1166180

ABSTRACT OF THE DISCLOSURE An improved coal liquefaction process is dis- closed wherein subdivided coal is substantially dissolved in a petroleum-derived solvent in the presence of added hydrogen in a non-catalytic dissolving stage at a temper- ature in the range 400° to 480°C, thereby forming a mixture of dissolved coal, solvent and insoluble solids. The effluent mixture of solvent, dissolved coal and insoluble solids from the dissolver is contacted with a hydrocracking catalyst under hydrocracking conditions at a reduced temperature below 425°C, resulting in a product having a normally liquid portion which may be used directly as a low-sulfur, low-nitrogen fuel oil.

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