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:
Nov. 06, 2012
Filed:
Jan. 23, 2008
Andre Jason Boulet, Vancouver, CA;
Amy Chiu, Richmond, CA;
Brian G. Sellars, Coquitlam, CA;
Andrea C. Gibbs, Burlington, CA;
Andre Jason Boulet, Vancouver, CA;
Amy Chiu, Richmond, CA;
Brian G. Sellars, Coquitlam, CA;
Andrea C. Gibbs, Burlington, CA;
Air Products and Chemicals, Inc., Allentown, PA (US);
Abstract
Guard layers are employed in the adsorbent beds of rapid cycle pressure swing adsorption (RCPSA) devices to protect the adsorbent therein from certain contaminants (e.g. water vapour). Conventional PSA devices typically pack the guard layer with as much guard material as is practical. In RCPSA devices however, the performance of the guard layer can be improved by using a reduced amount of guard material and increasing access to it. Such embodiments are characterized by guard layers with a channel fraction of greater than 50%.