Production of high viscosity index lubricants

Details Production of high viscosity index lubricants Production of high viscosity index lubricants

C - Chemistry, Metallurgy

10

G

C10G 65/04 (2006.01) C10G 45/60 (2006.01) C10G 45/72 (2006.01) C10G 47/00 (2006.01) C10G 65/12 (2006.01)

Patent

CA 2096993

-45- PRODUCTION OF HIGH VISCOSITY INDEX LUBRICANTS Abstract This invention relates to the production of high viscosity index lubricants from mineral oil feedstocks, e.g., petroleum waxes, by hydrocracking in a first stage, followed by a combined hydroisomerization- hydrotreating process in a second stage, wherein the temperature in the second stage is closely controlled by regulating the amount of nitrogen- containing compounds which are permitted into the second stage.

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