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:
Dec. 15, 2020
Filed:
Feb. 18, 2019
Exxonmobil Research and Engineering Company, Annandale, NJ (US);
William R. Gunther, Clinton, NJ (US);
Kendall S. Fruchey, Humble, TX (US);
Vinit Choudhary, Annandale, NJ (US);
Adrienne R. Diebold, Prairieville, LA (US);
Jason M. McMullan, Nazareth, PA (US);
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Abstract
Adsorbents for aromatic adsorption are used to improve one or more properties of base stocks derived from deasphalted oil fractions. The adsorbents can allow for removal of polynuclear aromatics from an intermediate effluent or final effluent during base stock production. Removal of polynuclear aromatics can be beneficial for improving the color of heavy neutral base stocks and/or reducing the turbidity of bright stocks.