Coal liquefaction process
AssigneeUop LLC
InventorsPeter Urban, Lee Hilfman
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Abstract
A coal liquefaction process comprising reacting coal with a hydrocarbonaceous solvent at coal liquefaction conditions in the presence of an oil shale residue catalyst comprising organic and inorganic fractions. The oil shale residue catalyst is derived by heating an oil shale in the presence of an inert gas with respect to the oil shale at a temperature of 500.degree.-825.degree. F.
Claims17
A coal liquefaction process comprising reacting coal with a hydrocarbonaceous solvent at coal liquefaction conditions in the presence of an oil shale residue catalyst comprising organic and inorganic fractions, said catalyst being produced by the treatment of oil shale in the presence of an inert gas at a temperature in the range from about 500.degree. F. to about 825.degree. F. and at a pressure in the range of from about atmospheric to about 2000 psig for a period of time of from about 0.1 to 10 hours.
A coal liquefaction process comprising
- (a) pretreating an oil shale at pretreatment conditions sufficient to produce a hydrocarbon fraction and an oil shale residue catalyst comprising organic and inorganic fractions, said catalyst being produced by the treatment of oil shale in the presence of an inert gas at a temperature in the range from about 500.degree. F. to about 825.degree. F. and at a pressure in the range of from about atmospheric to about 2000 psig for a period of time of from about 0.1 to 10 hours;
- (b) separating at least a portion of said hydrocarbon fraction from said oil shale residue catalyst;
- (c) contacting said oil shale residue catalyst with coal and a hydrocarbonaceous solvent at coal liquefaction conditions to produce a hydrocarbonaceous liquid;
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- (d) recovering said hydrocarbonaceous liquid.
A coal liquefaction process comprising reacting coal with a hydrocarbonaceous solvent comprising aromatic hydrocarbons at coal liquefaction conditions in the presence of a friable oil shale residue catalyst comprising organic and inorganic fractions which swells in the presence of the aromatic hydrocarbons, said catalyst being produced by the treatment of oil shale in the presence of an inert gas at a temperature in the range from about 500.degree. F. to about 825.degree. F. and at a pressure in the range of from about atmospheric to about 2000 psig for a period of time of from about 0.1 to 10 hours.
Dependencies are inferred from the claim text.