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:
Aug. 15, 2000
Filed:
Apr. 14, 1998
Francedilla.ois-Xavier Brunet, Vernaison, FR;
Emmanuelle Bromet, Rueil Malmaison, FR;
Jean-Marie Deves, Vernouillet, FR;
Institut Francois du Petrole, Cedex, FR;
Abstract
The invention concerns a process for moving bed regeneration of a reforming or aromatic hydrocarbon production catalyst. The catalyst includes a support, at least one noble metal and at least one halogen. The process includes a combustion step in which the catalyst is treated in at least two successive combustion zones. Also, the process includes each combustion zone separated from adjacent combustion zones allowing catalyst to pass and preventing passage of gas, at least one oxygen-containing gas introduced into each zone and produced gases extracted from each zone, and the severity of the operating conditions in each zone increasing in the direction of catalyst flow. Advantageously, the combustion step ends in a zone for monitoring and controlling combustion completion characterized by a low or zero oxygen consumption.