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:
Nov. 07, 2006
Filed:
Oct. 08, 2002
William Berlin Genetti, Baton Rouge, LA (US);
Adeana Richelle Bishop, Baton Rouge, LA (US);
Nancy Marie Page, Baton Rouge, LA (US);
Gregg Johnston Howsmon, Baton Rouge, LA (US);
Loren Leon Ansell, Baton Rouge, LA (US);
Jack Wayne Johnson, Clinton, NJ (US);
William Berlin Genetti, Baton Rouge, LA (US);
Adeana Richelle Bishop, Baton Rouge, LA (US);
Nancy Marie Page, Baton Rouge, LA (US);
Gregg Johnston Howsmon, Baton Rouge, LA (US);
Loren Leon Ansell, Baton Rouge, LA (US);
Jack Wayne Johnson, Clinton, NJ (US);
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Abstract
Dewaxed fuel and lubricant base stocks are made by (a) producing a synthesis gas from natural gas, (b) reacting the Hand CO in the gas in the presence of a cobalt Fischer-Tropsch catalyst, at reaction conditions effective to synthesize a waxy hydrocarbon feed boiling in the fuel and lubricant oil ranges, which is hydrodewaxed in a first stage to produce a dewaxed fuel and a partially dewaxed lubricant fraction. The partially dewaxed lubricant fraction is separated into heavy and lower boiling fractions each of which is separately hydrodewaxed, to produce lubricant base stocks. A hydrodewaxing catalyst comprising a hydrogenation component, binder and solid acid component used to hydrodewax at least one, and preferably at least two of the waxy feed and partially dewaxed heavy and lower boiling lubricant fractions.