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:
Jul. 18, 1989
Filed:
Aug. 25, 1987
Pierre Ham, La Celle St Cloud, FR;
Jean-Paul Dessapt, Beynes, FR;
Didier Bischoff, Rueil Malmaison, FR;
Jean de Bonneville, Rueil Malmaison, FR;
Institut Francais du Petrole, Rueil Malmaison, FR;
Abstract
The invention concerns a process for regenerating a hydrocarbon hydroconversion catalyst containing a carrier, at least one group VIII noble metal and a halogen or halogenated compound. It is characterized by an operation in two regeneration zones (1) and (2). The gas effluent from the first regeneration zone (1) is used to feed the second regeneration zone. During the step of burning coke deposited onto the catalyst in the first zone, the heat amount generated during the combustion is used for preheating the feed of said first zone. The temperature of the effluent of said first zone is reduced, through said exchanger, to a value adapted to perform the burning step in the second zone. Additional air is supplied before introducing the gas into said second zone (2) in order to obtain a suitable oxygen concentration.