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. 04, 2020
Filed:
Dec. 27, 2016
Exxonmobil Research and Engineering Company, Annandale, NJ (US);
Mohsen N. Harandi, New Hope, PA (US);
Doron Levin, Highland Park, NJ (US);
Himanshu Gupta, Lebanon, NJ (US);
James R. Lattner, LaPorte, TX (US);
Glenn C. Wood, Houston, TX (US);
Keith K. Aldous, Montgomery, TX (US);
Timothy L. Hilbert, Middleburg, VA (US);
Michael B. Carroll, Center Valley, PA (US);
Ajit B. Dandekar, Clinton, NJ (US);
Sara L. Yohe, Raritan, NJ (US);
Stephen H. Brown, Lebanon, NJ (US);
Tracie L. Owens, Houston, TX (US);
April D. Ross, Conroe, TX (US);
Eric B. Senzer, Margate, FL (US);
Steven Pyl, Annandale, NJ (US);
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Abstract
Methods are provided for producing lubricant base stocks from deasphalted oils formed by sequential deasphalting. The deasphalted oil can be exposed a first deasphalting process using a first solvent that can provide a lower severity of deasphalting and a second deasphalting process using a second solvent that can provide a higher severity of deasphalting. This can result in formation of at least a deasphalted oil and a resin fraction. The resin fraction can represent a fraction that traditionally would have been included as part of a deasphalter rock fraction.