초록

An improved nickel-tin hydrogenation catalyst additionally comprising palladium provides a highly active catalyst more easily activated than conventional nickel hydrogenation catalysts, and a process employing the improved catalyst to stabilize lubricating oils to ultraviolet radiation is disclosed.

대표청구항 ▼

In a process for stabilizing lubricating oil which comprises the steps of: (a) hydrocracking in a hydrocracking zone a hydrocarbonaceous feedstock; and (b) catalytically hydrogenating in a catalytic hydrogenation zone at least part of the effluent of said hydrocracking zone by contacting at least pa

In a process for stabilizing lubricating oil which comprises the steps of: (a) hydrocracking in a hydrocracking zone a hydrocarbonaceous feedstock; and (b) catalytically hydrogenating in a catalytic hydrogenation zone at least part of the effluent of said hydrocracking zone by contacting at least part of said hydrocracking zone effluent with a catalyst comprising nickel or compounds thereof, tin or compounds thereof, and a siliceous matrix; the improvement which comprises adding to said catalyst from about 0.03 percent by weight to about 1.0 percent by weight of palladium metal as a percentage of total catalyst weight.