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. 09, 2003
Filed:
Nov. 30, 2000
Francois-Xavier Brunet, Istres, FR;
Olivier Clause, Chatou, FR;
Jean-Marie Deves, Vernouillet, FR;
Eric Sanchez, Rueil Malmaison, FR;
Frederic Hoffmann, Paris, FR;
Institut Francais du Pétrole, Rueil-Malmaison, FR;
Abstract
A moving bed process for producing aromatic compounds comprises at least a first step in which principally naphthene dehydrogenation is carried out in the presence of hydrogen in a mole ratio (H ) /(HC), said step being followed by at least one subsequent step carried out at a mole ratio (H ) /(HC) , the process also comprising reducing the catalyst with hydrogen in a ratio (H ) /(HC). In accordance with the invention, (H ) /(HC)+(H ) /(HC)≦(H ) /(HC) , (HC) representing the molar quantity of feed in the first step and (HC) that of the subsequent step, or (H ) /(HC)+(H ) /(HC)>(H ) /HC , but where (H ) /(HC) is less than (H ) /(HC) . Particular application to reforming.