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:
Feb. 28, 2012
Filed:
Jul. 29, 2009
Xavier Decoodt, Carrieres S/Seine, FR;
Gerard Hotier, Rueil Maimaison, FR;
Philibert Leflaive, Mions, FR;
Damien Leinekugel Le Cocq, Lyons, FR;
Xavier Decoodt, Carrieres S/Seine, FR;
Gerard Hotier, Rueil Maimaison, FR;
Philibert Leflaive, Mions, FR;
Damien Leinekugel Le Cocq, Lyons, FR;
IFP Energies Nouvelles, Rueil-Malmaison Cedex, FR;
Abstract
A process for separating a feed F by simulated moving bed adsorption in a SMB device comprises at least one zone 1 for desorption of the compounds produced in the extract, a zone 2 for desorption of the compounds produced in the raffinate, a zone 3 for adsorption of the compounds produced in the extract, a zone 4 located between the raffinate withdrawal and the desorbant supply, the device comprising external by-pass lines Ldirectly connecting two successive plates Pand P; in which the degree of opening of means for restricting the flushing flow rate of the by-pass lines Lare sequentially modified such that: