The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 02, 2010
Filed:
Nov. 18, 2005
Applicants:
Jan Lodewijk Maria Dierickx, Amsterdam, NL;
Arend Hoek, Amsterdam, NL;
Lip Piang Kueh, Sarawak, MY;
Inventors:
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G 65/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
Process to optimize the yield of base oils from a Fischer-Tropsch derived feed by performing the following steps (a) performing a hydroconversion/hydroisomerization step on part of the Fischer-Tropsch derived feed; (b) performing a hydroconversion/hydroisomerization step on another part of the Fischer-Tropsch feed at a conversion greater than the conversion in step (a); and (c) isolating by means of distillation a fraction boiling in the base oil range from the two reaction products obtained in steps (a) and (b) and performing a pour point reducing step on said fraction.