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A process for catalytically hydroconverting a mixture of coal and a hydrocarbonaceous oil is effected by forming a mixture of a thermally decomposable metal compound, oil and coal, converting the compound to a catalyst within the mixture and reacting the mixture with hydrogen. Preferred compounds ar

A process for catalytically hydroconverting a mixture of coal and a hydrocarbonaceous oil is effected by forming a mixture of a thermally decomposable metal compound, oil and coal, converting the compound to a catalyst within the mixture and reacting the mixture with hydrogen. Preferred compounds are molybdenum compounds.

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A process for simultaneously hydroconverting a non-hydrogen donor heavy hydrocarbon oil and coal in admixture, which comprises: (a) forming a mixture of said heavy hydrocarbon oil, coal and an added thermally decomposable metal compound, in an amount ranging from about 10 to about 950 weight parts p

A process for simultaneously hydroconverting a non-hydrogen donor heavy hydrocarbon oil and coal in admixture, which comprises: (a) forming a mixture of said heavy hydrocarbon oil, coal and an added thermally decomposable metal compound, in an amount ranging from about 10 to about 950 weight parts per million, calculated as the elemental metal, based on said oil-coal mixture, said metal being selected from the group consisting of Groups IVB, VB, VIB, VIIB and VIII of the Periodic Table of Elements and mixtures thereof; (b) converting said thermally decomposable metal compound to a catalyst within said mixture in the presence of a hydrogen-containing gas by heating said mixture to an elevated temperature; (c) reacting the resulting mixture containing said catalyst with hydrogen under oil and coal hydroconversion conditions, such that at least 50 weight percent of said heavy oil has a boiling point below the initial boiling point of said heavy oil, in a hydroconversion zone, said catalyst being the sole catalyst in said hydroconversion zone, and (d) recovering a hydroconverted normally liquid hydrocarbon product.