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. 13, 2001
Filed:
May. 05, 1999
Samuel Mignard, Chatou, FR;
Virginie Harle, Lamorlaye, FR;
Slavik Kasztelan, Rueil Malmaison, FR;
Nathalie Marchal-George, Saint Genis Laval, FR;
Institut Francais du Petrole, Rueil-Malmaison, FR;
Abstract
The invention relates to a process for the sulfurization of hydroconversion catalysts, whereby said catalyst contains at least one element of group VIII of the periodic table and optionally an element of group VI, whereby said metal is present in the oxide state. Said process comprises at least one stage that is carried out in a hydrotreatment zone in the presence of at least one thionic compound and at least one nitrogenous compound. This process is carried out in such a way that before the final sulfurization temperature is reached, at least 130% of the stoichiometric amount of sulfur that is necessary for complete sulfurization of the catalyst is injected in said catalyst.