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US 8,480,880 B2Granted
Process for making high viscosity index lubricating base oils
AssigneeChevron U.S.A. Inc.
InventorStephen J. Miller
Life of this patent
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Abstract
A process for making a lubricating base oil having a viscosity index of at least 110, comprising the steps of: combining a waxy light neutral base oil and a wax derived from pyrolyzing a plastics feed comprising polyethylene to form a blend; hydroisomerization dewaxing the blend; and recovering the lubricating base oil from an effluent from the hydroisomerization dewaxing step.
Claims17
A process for making a lubricating base oil having a viscosity index of at least 110, comprising the steps of:
- a) combining a waxy light neutral base oil and a wax derived from pyrolyzing a plastics feed comprising polyethylene to form a blend;
- b) hydroisomerization dewaxing the blend;
- and
- c) recovering the lubricating base oil from an effluent from the hydroisomerization dewaxing step.
1 more element
Dependencies are inferred from the claim text.