Coal liquefaction process

Details Coal liquefaction process Coal liquefaction process

C - Chemistry, Metallurgy

10

G

196/5.3

C10G 1/04 (2006.01) C10G 1/00 (2006.01) C10G 47/00 (2006.01)

Patent

CA 1155781

ABSTRACT OF THE DISCLOSURE COAL LIQUEFACTION PROCESS Disclosed is a two-stage process for the production of liquid hydrocarbons from coal. More particularly, disclosed is a two-stage coal liquefaction process wherein subdivided coal is substantially dissolved in a solvent in a first non-catalytic dissolving stage at the temperature in the range 750° to 900°F. In a second stage, the mixture of solvent, dissolved coal and insoluble solids is contacted with a hydrocracking catalyst at a critical temperature below 800°F. The normally liquid portion of the hydrocracker effluent product has a surprisingly low sulfur content of less than 0.1 weight percent, a low nitrogen content of less than 0.5 weight percent, and a high API gravity of at least -3.

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