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:
Sep. 03, 2013
Filed:
Feb. 20, 2009
Eric D. Joseck, Burke, VA (US);
Timothy Lee Hilbert, Fairfax, VA (US);
Merryl J. Miranda, Falls Church, VA (US);
Jeenok Theresa Kim, Fairfax, VA (US);
Michael Brian Carroll, Center Valley, PA (US);
Bryan E. Steuer, Houston, TX (US);
Eric D. Joseck, Burke, VA (US);
Timothy Lee Hilbert, Fairfax, VA (US);
Merryl J. Miranda, Falls Church, VA (US);
Jeenok Theresa Kim, Fairfax, VA (US);
Michael Brian Carroll, Center Valley, PA (US);
Bryan E. Steuer, Houston, TX (US);
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Abstract
The invention below shows a preferred method to make high quality base oil at unexpectedly high yields using a combination of hydrotreatment of high waxy feedstocks accompanied by hydroisomerization of the resulting wax to produce an extra high VI lube of greater than 140VI and at least −18 deg C. pour point or less. The preferred combinations of conditions identified below can surprisingly lead to unexpectedly high yields. This allows the use of higher oil content (or lower wax content) feedstocks.