logo

For the Inventor, By the Inventor

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.:

US 10023822 B1

PDFFull Text
Date of Patent:
Jul. 17, 2018

Filed:

Feb. 09, 2016

Production of base oils from petrolatum

Applicant:

Exxonmobil Research and Engineering Company, Annandale, NJ (US);

Inventors:

Jeenok T. Kim, Fairfax, VA (US);

Gary P. Schleicher, Milford, NJ (US);

Halou Oumar-Mahamat, Belle Mead, NJ (US);

Chad H. Mondor, McLean, VA (US);

Assignee:

EXXONMOBIL RESEARCH AND ENGINEERING COMPANY, Annandale, NJ (US);

Attorney:

Scott F. Yarnell

Primary Examiner:

Ellen C McAvoy

Int. Cl.
CPC ...
C10M 101/02 (2006.01); C10G 69/04 (2006.01); C10G 65/04 (2006.01); C10G 67/04 (2006.01); C10G 69/02 (2006.01); C10G 73/06 (2006.01); C10G 73/44 (2006.01); C10M 101/00 (2006.01); C10G 45/02 (2006.01); C10G 45/06 (2006.01); C10G 45/08 (2006.01); C10G 45/58 (2006.01); C10G 45/62 (2006.01); C10G 45/64 (2006.01); C10G 47/00 (2006.01); C10G 47/04 (2006.01); C10G 47/16 (2006.01); C10G 21/00 (2006.01);
U.S. Cl.
CPC ...
C10M 101/02 (2013.01); C10G 21/003 (2013.01); C10G 45/02 (2013.01); C10G 45/06 (2013.01); C10G 45/08 (2013.01); C10G 45/58 (2013.01); C10G 45/62 (2013.01); C10G 45/64 (2013.01); C10G 47/00 (2013.01); C10G 47/04 (2013.01); C10G 47/16 (2013.01); C10G 65/043 (2013.01); C10G 67/0454 (2013.01); C10G 69/02 (2013.01); C10G 69/04 (2013.01); C10G 73/06 (2013.01); C10G 73/44 (2013.01); C10M 1/00 (2013.01); C10G 2300/1062 (2013.01); C10G 2300/1074 (2013.01); C10G 2300/1077 (2013.01); C10G 2300/301 (2013.01); C10G 2300/302 (2013.01); C10G 2300/304 (2013.01); C10G 2400/10 (2013.01); C10M 2203/1025 (2013.01); C10N 2220/022 (2013.01); C10N 2230/02 (2013.01);
Abstract

Methods are provided for producing lubricant base oils from petrolatum. After solvent dewaxing of a brightstock raffinate to form a brightstock base oil, petrolatum is generated as a side product. The petrolatum can be hydroprocessed to form base oils in high yield. The base oils formed from hydroprocessing of petrolatum have an unexpected pour point relationship. For a typical lubricant oil feedstock, the pour point of the base oils generated from the feedstock increases with the viscosity of the base oil. By contrast, lubricant base oils formed from hydroprocessing of petrolatum have a relatively flat pour point relationship, and some of the higher viscosity base oils unexpectedly have lower pour points than lower viscosity base oils generated from the same petrolatum feed. The base oils from petrolatum are also unusual in yielding both high viscosity and high viscosity index and can be generated while maintaining a high yield.

Find Patent Forward Citations

Loading…