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. 11, 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;
Institu Francais du Petrole, , FR;
Abstract
A process for activation of a hydroconversion catalyst, whereby said catalyst contains at least one metal or element of group VIII, at least one acid element and optionally at least one metal or element of group VI according to which a light petroleum fraction, at least one thionic compound and at least one nitrogenous compound are injected in said catalyst. This process is carried out such that the QS sulfur amount that is injected before the temperature of the catalyst reaches 250° C. is at least equal to half the QS,sulfur amount that is necessary for complete sulfurization of the catalyst.