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:
Oct. 16, 2007
Filed:
Dec. 23, 2003
Susan M. Abernathy, Hercules, CA (US);
David C. Kramer, San Anselmo, CA (US);
John M. Rosenbaum, Richmond, CA (US);
Stephen J. Miller, San Francisco, CA (US);
Russell R. Krug, Novato, CA (US);
Susan M. Abernathy, Hercules, CA (US);
David C. Kramer, San Anselmo, CA (US);
John M. Rosenbaum, Richmond, CA (US);
Stephen J. Miller, San Francisco, CA (US);
Russell R. Krug, Novato, CA (US);
Chevron USA, Inc., Richmond, CA (US);
Abstract
A process for manufacturing a lubricating base oil by: a) performing Fischer-Tropsch synthesis on syngas to provide a product stream; b) isolating from said product stream a substantially paraffinic wax feed having less than about 30 ppm total nitrogen and sulfur, and less than about 1 wt % oxygen; c) dewaxing said feed by hydroisomerization dewaxing using a shape selective intermediate pore size molecular sieve comprising a noble metal hydrogenation component, wherein the hydroisomerization temperature is between about 600° F. (315° C.) and about 750° F. (399° C.), to produce an is dimerized oil; and d) hydrofinishing said isomerized oil to produce a lubricating base oil having specific desired properties.