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:
Apr. 11, 2000
Filed:
Apr. 14, 1998
Marianne Capelle, Ternay, FR;
Jean-Marie Deves, Vernouillet, FR;
Frederic Hoffmann, Paris, FR;
Michel Thery, Vernaison, FR;
Francedilla.ois-Xavier Brunet, Vernaison, FR;
Emmanuelle Bromet, Rueil-Malmaison, FR;
Institut Francais du Petrole, Rueil Malmaison Cedex, FR;
Abstract
The invention concerns a process and unit for regenerating a catalyst for the production of aromatic compounds, in particular for reforming, the catalyst being in a moving bed, comprising combustion, oxychlorination and calcining steps, in which at least one chlorinating agent, at least one oxygen-containing gas, and water are introduced into the oxychlorination step such that the H.sub.2 O/HCl molar ratio is 1 to 50, the oxychlorination step being carried out in the presence of an oxychlorination gas containing less than 21% of oxygen and at least 50 ppm by weight of chlorine (based on HCl), and at a temperature of 350-600.degree. C., and in which the combustion step is carried out in at least two combustion zones, each zone being separated from the adjacent zones, and at least one gas charged with oxygen is introduced into each zone, the gases produced being extracted from each zone, and in which the severity of the operating conditions increases in the direction of flow of the catalyst.