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. 05, 2009
Filed:
Dec. 19, 2002
Mark William Ackley, East Aurora, NY (US);
Himanshu Saxena, Columbus, OH (US);
Gregory William Henzler, East Amherst, NY (US);
Jeffert John Nowobilski, Orchard Park, NY (US);
Mark William Ackley, East Aurora, NY (US);
Himanshu Saxena, Columbus, OH (US);
Gregory William Henzler, East Amherst, NY (US);
Jeffert John Nowobilski, Orchard Park, NY (US);
Praxair Technology, Inc., Danbury, CT (US);
Abstract
This invention comprises an adsorption process for the removal of at least NO from a feed gas stream that also contains nitrogen and possibly COand water. In the process the feed stream is passed over adsorbents to remove impurities such as CO2 and water, then over an additional adsorbent having a high NO/Nseparation factor. In a preferred mode the invention is an air prepurification process for the removal of impurities from air prior to cryogenic separation of air. An apparatus for operating the process is also disclosed.