ISOMERIZATION/DEHAZING PROCESS FOR BASE OILS FROM FISCHER-TROPSCH WAX

WIPO Patent Application WO2004081154

A3

A method for producing lubricant base oils is provided comprising the steps of: (a) separating a feedstock into a light lubricant base oil fraction and a heavy fraction; (b) hydroisomerizing the fractions over a medium pore size molecular sieve catalyst under hydroisomerization conditions to produce an isomerized light lubricant base oil fraction having a pour point less than or equal to a target pour point of the lubricant base oils and an isomerized heavy fraction having a pour point of equal to or greater than the target pour point of the lubricant base oils and a cloud point greater than the target cloud point of the lubricant base oils; and (c) dehazing the isomerized heavy fraction to provide a heavy lubricant base oil having a pour point less than or equal to the target pour point of the lubricant base oils and a cloud point less than or equal to the target cloud point of the lubricant base oils.

JP2002503754	PROBLEM TO BE SOLVED: To improve low temperature performance of base oil using a combination catalyst system.
JPH09117670	SOLID CATALYST FOR ALKYLATION OF ALIPHATIC COMPOUND

MILLER STEPHEN J (US)
ROSENBAUM JOHN M (US)

PCT/US2004/006517

March 10, 2005

March 03, 2004

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CHEVRON USA INC (US)
MILLER STEPHEN J (US)
ROSENBAUM JOHN M (US)

C07C5/13; C10G45/64; C10G47/00; C10G65/04; C10G65/14; C10G69/00; C10G69/02; C10G73/00; C10M177/00; C10G; C10M; (IPC1-7): C10G65/14

EP0776959A2	1997-06-04
US4943672A	1990-07-24

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