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:
May. 25, 2021
Filed:
Apr. 10, 2020
Axens, Rueil Malmaison, FR;
Geoffrey Dubin, Houston, TX (US);
Annick Pucci, Rueil-Malmaison, FR;
Boris Hesse, Rueil-Malmaison, FR;
AXENS, Rueil Malmaison, FR;
Abstract
A naphtha hydrotreating process containing a first step in the presence of the first catalyst containing a support; a second step in the presence of the second catalyst containing a support and an active phase, which active phase contains a Group 9 or 10 metal and a Group 6 metal; a third step in the presence of the third catalyst containing a support and an active phase, which active phase contains a Group 6 metal; wherein the content of Group 6 metal of the third catalyst is less than the content of Group 6 metal of the second catalyst; the ratio of the loaded specific surface area of the first catalyst to that of the second catalyst is greater than or equal to 1.20; the ratio of the loaded specific surface area of the third catalyst to that of the second catalyst is greater than 1.07.