Process for hydrodesulfurization of heavy hydrocarbon oils

Details Process for hydrodesulfurization of heavy hydrocarbon oils Process for hydrodesulfurization of heavy hydrocarbon oils

C - Chemistry, Metallurgy

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C10G 45/04 (2006.01) B01J 35/10 (2006.01) C10G 65/04 (2006.01)

Patent

CA 1123356

ABSTRACT OF THE DISCLOSURE A process for hydrodesulfurization of heavy hydrocarbon oil containing asphaltenes and heavy metals in large amounts is disclosed. The heavy oil is hydrotreated in a continuous 2-step process. In the first step the heavy oil is subjected to hydro- demetallization and selective cracking of asphaltenes by the use of a catalyst having a unique selectivity therefor. In the sec- ond step the effluent from the first step is subjected to hydro- desulfurization to produce desulfurized oils of high grade by the use of a catalyst having a pore volume and pore size distribution particularly adapted for the hydrodesulfurization of the effluent.

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