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US 4,394,248 AGranted
Coal liquefaction process
AssigneeUop LLC
InventorJohn G. Gatsis
Life of this patent
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Abstract
A process for liquefying coal which comprises contacting coal and solvent in the presence of a residual oil containing asphaltenes and at least one finely divided, unsupported metal sulfide and recovering valuable liquid hydrocarbon products from the resulting liquid coal extract.
Claims21
A process for producing hydrogen-enriched hydrocarbonaceous products from coal which comprises:
- (a) contacting said coal in a solvent extraction zone at solvent extraction conditions with a solvent, hydrogen and a residual oil containing asphaltenes and at least one finely divided, unsupported metal sulfide;
- and
- (b) recovering hydrogen-enriched hydrocarbonaceous products.
Dependencies are inferred from the claim text.