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. 19, 2005
Filed:
Feb. 28, 2002
Frédéric Hoffmann, Sainte Foy les Lyon, FR;
Eric Lenglet, Rueil Malmaison, FR;
Philippe Mege, Reventin Vaugris, FR;
Frédéric Hoffmann, Sainte Foy les Lyon, FR;
Eric Lenglet, Rueil Malmaison, FR;
Philippe Mege, Reventin Vaugris, FR;
Institut Francais du Petrole, Rueil-Malmaison Cedex, FR;
Abstract
An elongate reaction vessel and process includes at least two stages in the vertical direction in which an endothermic or exothermic catalytic reaction is carried out and comprises: a catalytic reaction zone () per stage (); introducing () a reaction fluid to a stage adapted for transverse motion of the fluid across the whole vertical extent of the reaction zone; introducing and extracting the catalyst; a heat exchanger () for reaction fluids located inside the vessel between two successive reaction zones; means () for transporting reaction fluids from one stage to another preferably connected to the exchanger of the stage under consideration and to the inlet for reaction fluids of the subsequent stage; and means for recovering reaction fluids downstream of the last stage. The temperature variation in each zone and the temperature level are respectively adjusted by the thickness of each zone and by heat exchange.