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. 23, 2021
Filed:
Dec. 19, 2012
Total Raffinage Marketing, La Defense, FR;
Ifp Energies Nouvelles, Rueil-Malmaison, FR;
Bertrand Guichard, Izeaux, FR;
Laurent Simon, Villeurbanne, FR;
Sylvie Lopez, Lyons, FR;
Valentina De Grandi, Schaerbeek, BE;
Delphine Minoux, Nivelles, BE;
Jean-Pierre Dath, Beloeil, BE;
IFP ENERGIES NOUVELLES, Rueil-Malmaison, FR;
TOTAL RAFFINAGE MARKETING, La Defense, FR;
Abstract
A process for the preparation of a catalyst from a catalytic precursor comprising a support based on alumina and/or silica-alumina and/or zeolite and comprising at least one element of group VIB and optionally at least one element of group VIII, by impregnation of said precursor with a solution of a C1-C4 dialkyl succinate. An impregnation step for impregnation of said precursor which is dried, calcined or regenerated, with at least one solution containing at least one carboxylic acid other than acetic acid, then maturing and drying at a temperature less than or equal to 200° C., optionally a heat treatment at a temperature lower than 350° C., followed by an impregnation step with a solution containing at least one C1-C4 dialkyl succinate followed by maturing and drying at a temperature less than 200° C. without subsequent calcination step. The catalyst is used in hydrotreatment and/or hydroconversion.