Catalytic process for manufacture of lubricating oils

Details Catalytic process for manufacture of lubricating oils Catalytic process for manufacture of lubricating oils

C - Chemistry, Metallurgy

10

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196/54

C10G 47/16 (2006.01) C10G 45/54 (2006.01) C10G 45/64 (2006.01) C10G 47/18 (2006.01) C10G 65/08 (2006.01) C10G 65/12 (2006.01)

Patent

CA 1163945

F-0587 ABSTRACT This invention describes a process for preparing a high viscosity index low pour point lube base stock from an asphalt-free heavy hydrocarbon oil by first catalytically dewaxing the heavy oil with a catalyst comprising a zeolite having a Constraint Index of 1 to 12 and then hydrocracking or hydroconverting the dewaxed oil with a large pore zeolite catalyst such as dealuminized Y or ZSM-20 associated with palladium. The viscosity index is controlled by the severity of the hydroconversion step.

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