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Catalysts for hydrotreating hydrocarbons are composed of a carrier substance consisting essentially of an oxide of aluminum and/or an oxide hydrate of aluminum, at least one compound selected from water-soluble compounds of metals of Group VI and Group VIII of the Periodic Table and at least one org

Catalysts for hydrotreating hydrocarbons are composed of a carrier substance consisting essentially of an oxide of aluminum and/or an oxide hydrate of aluminum, at least one compound selected from water-soluble compounds of metals of Group VI and Group VIII of the Periodic Table and at least one organic compound selected from mercapto-carboxylic acids of formula HS－(CH2)n－COOR (where n is 1 to 3; R is H, alkali metal, alkaline earth metal or ammonium group or alkyl group with 1-10 carbons), thio-acids of formula R′－COSH (where R′is monovalent hydrocarbon with 1-15 carbons), amino-substituted mercaptans of formula H2N－R″－SH (R″is divalent hydrocarbon with 1-15 carbons), dimercaptans of formula HS－R″－SH (R″is same as above) and mercapto-alcohols of formula (RaS－R″′－(OH)n (where R″′is hydrocarbon with 1-15 carbons; Ra is H or alkyl group with 1-2 carbons; and n is 1-2), and optionally phosphoric acid. The catalysts require neither presulfurization nor heat-treatment and can be directly applied to hydrotreating hydrocarbons.

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A catalyst for hydrotreating hydrocarbons, which comprises a shaped body of a mixture composed of a carrier substance consisting essentially of an oxide of aluminium and/or an oxide hydrate of aluminium, at least one compound selected from water-soluble compounds of metals of Group VI and Group VIII

A catalyst for hydrotreating hydrocarbons, which comprises a shaped body of a mixture composed of a carrier substance consisting essentially of an oxide of aluminium and/or an oxide hydrate of aluminium, at least one compound selected from water-soluble compounds of metals of Group VI and Group VIII of the Periodic Table and at least one organic compound selected from the group consisting of mercapto-carboxylic acids of a general formula: HS－(CH2)n－COOR where n represents an integer of from 1 to 3; and R represents a hydrogen atom, or an alkali metal, an alkaline earth metal, an ammonium group, or an alkyl group having from 1 to 10 carbon atoms, thio-acids of a general formula: R′－COSH where R′represents a monovalent hydrocarbon group having form 1 to 15 carbon atoms, amino-substituted mercaptans of a general formula: H2N－R″－SH where R″represents a divalent hydrocarbon group having from 1 to 15 carbon atoms, dimercaptans of a general formula: HS－R″－HS where R″represents a divalent hydrocarbon group having from 1 to 15 carbon atoms, and mercapto-alcohols of a general formula: RaS－R″′－(OH)n where R″′represents an alkyl group having form 1 to 15 carbon atoms, or a phenyl group; Ra represents a hydrogen atom or an alkyl group having from 1 to 2 carbon atoms; and n represents an integer of from 1 to 2.