Two-stage catalytic process to produce lubricating oils

Details Two-stage catalytic process to produce lubricating oils Two-stage catalytic process to produce lubricating oils

C - Chemistry, Metallurgy

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C10G 45/00 (2006.01) C10G 45/60 (2006.01) C10G 47/12 (2006.01) C10G 65/12 (2006.01)

Patent

CA 1088885

TWO-STAGE CATALYTIC PROCESS TO PRODUCE LUBRICATING OILS ABSTRACT OF THE DISCLOSURE A high viscosity index mineral lubricating oil is produced by processing a heavy hydrocarbon feedstock, e.g. a deasphalted residiuum in two (2) catalytic steps. The feedstock is first catalytically hydrocracked, hydrotreated then catalytically hydrogenated and can be fractionated and dewaxed to provide a finished product. Improved step 1) catalysts comprise at least one Group VIB metal, Group VIII metal and mixtures thereof on a support involving both silica-alumina and alumina.

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