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:
Mar. 10, 2009
Filed:
Sep. 25, 2003
Applicants:
Pierre Dufresne, Valence, FR;
Franck Labruyere, Saint Georges les Bains, FR;
Inventors:
Pierre Dufresne, Valence, FR;
Franck Labruyere, Saint Georges les Bains, FR;
Assignee:
Eurecat S.A., La Voulte sur Rhone, FR;
Primary Examiner:
Int. Cl.
CPC ...
B01J 27/02 (2006.01); B01J 27/047 (2006.01); B01J 27/051 (2006.01); B01J 27/049 (2006.01); B01J 27/043 (2006.01); B01J 27/045 (2006.01);
U.S. Cl.
CPC ...
Abstract
This invention relates to a process of ex-situ oxidizing passivation of catalysts for hydroconversion of hydrocarbons and especially of hydrotreating, in their sulfide state, process in which the sulfurized catalyst is brought into contact with an oxidizing gas flow that can be dry or wet, during heat treatment at more than 50° C. This invention, for passivation of sulfide phases, can be equally well implemented for a process that takes place in a fixed bed or a fluidized bed, for example a moving bed.