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:
May. 26, 2009
Filed:
Dec. 22, 2003
Mohamed Safdar Allie Baksh, Amherst, NY (US);
Mark William Ackley, East Aurora, NY (US);
Frank Notaro, Amherst, NY (US);
Mohamed Safdar Allie Baksh, Amherst, NY (US);
Mark William Ackley, East Aurora, NY (US);
Frank Notaro, Amherst, NY (US);
Praxair Technology, Inc., Danbury, CT (US);
Abstract
This invention discloses an optimum set of adsorbents for use in H-PSA processes. Each adsorbent bed is divided into four regions; Regioncontains adsorbent for removing water; Regioncontains a mixture of strong and weak adsorbents to remove bulk impurities like CO; Regioncontains a high bulk density (>38 lb/ft) adsorbent to remove remaining CO; and most of CHand CO present in Hcontaining feed mixtures; and Regioncontains adsorbent having high Henry's law constants for the final cleanup of Nand residual impurities to produce hydrogen at the desired high purity.