Lubricating base oil manufacturing plant for producing base oils having high viscosity index and desired cycloparafinic functionality
AssigneeChevron U.S.A. Inc.
InventorsJohn M. Rosenbaum, Nancy J. Bertrand, Scott Deskin, Kamala Krishna, Stephen J. Miller, Susan M. Abernathy
Life of this patent
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Abstract
A lubricating base oil manufacturing plant comprising a means for hydroisomerization dewaxing a wax at a specified hydrogen to feed ratio and a means for hydrofinishing the hydroisomerized wax to produce one or more base oils having a viscosity index greater than 28×Ln(Kinematic Viscosity at 100° C., in cSt)+95, and a ratio of wt % molecules with monocycloparaffinic functionality to wt % molecules with multicycloparaffinic functionality greater than 15.
Claims18
A lubricating base oil manufacturing plant, comprising:
- a. a means for hydroisomerization dewaxing a Fischer-Tropsch derived wax;
- and
- b. a means for hydrofinishing the hydroisomerized Fischer-Tropsch derived wax;
- wherein the base oil manufacturing plant produces one or more lubricating base oils from the Fischer-Tropsch wax having:
- I. a viscosity index greater than 28×Ln(Kinematic Viscosity at 100° C.)+95, and
- II. a ratio of wt % molecules with monocycloparaffinic functionality to wt % molecules with multicycloparaffinic functionality greater than 15.
A lubricating base oil plant, comprising:
- a. a means for hydroisomerization dewaxing a wax having a weight ratio of molecules having at least 60 or more carbon atoms and molecules having at least 30 carbon atoms less than 0.18;
- and a
- b. a means for hydrofinishing the hydroisomerized wax;
- wherein the base oil manufacturing plant produces one or more lubricating base oils from the wax having:
- i. a viscosity index greater than 28×Ln(Kinematic Viscosity at 100° C., in cSt)+95, and
- ii. a ratio of wt % molecules with monocycloparaffinic functionality to wt % molecules with multicycloparaffinic functionality greater than 15.
Dependencies are inferred from the claim text.