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:
Jun. 05, 2012
Filed:
Nov. 30, 2007
Gerhard Pirngruber, Charly, FR;
Elsa Jolimaitre, Lyons, FR;
Luc Wolff, Chaponnay, FR;
Damien Leinekugel Le Cocq, Lyons, FR;
Gerhard Pirngruber, Charly, FR;
Elsa Jolimaitre, Lyons, FR;
Luc Wolff, Chaponnay, FR;
Damien Leinekugel le Cocq, Lyons, FR;
IFP Energies Nouvelles, Rueil-Malamison Cedex, FR;
Abstract
The present invention relates to a method of producing hydrogen of very high purity from a feed predominantly containing said hydrogen and a minor part of impurities mainly consisting of carbon dioxide, carbon monoxide, methane and heavier hydrocarbons. The purification method by hydrogen adsorption using a desorption stage at a lower pressure than the pressure of the feed, such as a PSA method for example, allows to produce the desorption stream and notably to recover the carbon dioxide under pressure and high-purity hydrogen, with a high yield. These performances are obtained by combining the successive stages of the method according to the invention with the use of a new family of adsorbent whose dynamic capacity at a high desorption pressure is greater than that of conventional adsorbents.