Catalyst composition for hydrodesulfurization of hydrocarbon oil and process for producing the same

A process for producing a catalyst composition for the hydrodesulfurization of a hydrocarbon oil comprising a composite of a metal oxide containing aluminum, at least one metal belonging to Group VIB of the Periodic Table, and at least one metal belonging to Group VIII of the Periodic Table, which comprises:

• a) mixing (a) at least one compound of a metal belonging to Group VIB of the Periodic Table with a solution of (c) an aluminum alkoxide or a chelate compound of aluminum and essentially an organic solvent capable of dissolving them;
• b) drying and calcining an effective component resulting from step a);
• and
• c) adding to the product obtained in step b), (b) at least one compound of a metal belonging to Group VIII of the Periodic Table, followed by drying and calcining the resulting product.

A process for producing a catalyst composition for the hydrodesulfurization of a hydrocarbon oil comprising a composite of a metal oxide containing aluminum, at least one metal belonging to Group VIB of the Periodic Table, and at least one metal belonging to the Group VIII of the Periodic Table, which comprises:

• a) mixing (b) at least one compound of a metal belonging to Group VIII of the Periodic Table with a solution mixture of (c) an aluminum alkoxide or a chelate compound of aluminum and essentially an organic solvent capable of dissolving them,
• b) drying and calcining an effective component resulting from step a);
• and
• c) adding to the product in step (b), (a) at least one compound of a metal belonging to Group VIB of the Periodic Table, followed by drying and calcining the resulting product.