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. 21, 2019
Filed:
Aug. 23, 2016
Philip A. Barrett, Tonawanda, NY (US);
Neil A. Stephenson, East Amherst, NY (US);
Nicholas R. Stuckert, Grand Island, NY (US);
Michael Freiert, Tonawanda, NY (US);
Hai Du, Hinsdale, IL (US);
Rachael A. Masin, East Amherst, NY (US);
Garrett R. Swindlehurst, Buffalo, NY (US);
Philip A. Barrett, Tonawanda, NY (US);
Neil A. Stephenson, East Amherst, NY (US);
Nicholas R. Stuckert, Grand Island, NY (US);
Michael Freiert, Tonawanda, NY (US);
Hai Du, Hinsdale, IL (US);
Rachael A. Masin, East Amherst, NY (US);
Garrett R. Swindlehurst, Buffalo, NY (US);
PRAXAIR TECHNOLOGY, INC., Danbury, CT (US);
Abstract
An adsorption process for xenon recovery from a cryogenic liquid or gas stream is described wherein a bed of adsorbent is contacted with the aforementioned xenon containing liquid or gas stream and adsorbs the xenon selectively from this fluid stream. The adsorption bed is operated to at least near full breakthrough with xenon to enable a deep rejection of other stream components, prior to regeneration using the temperature swing method. Operating the adsorption bed to near full breakthrough with xenon, prior to regeneration, enables production of a high purity product from the adsorption bed and further enables oxygen to be used safely as a purge gas, even in cases where hydrocarbons are co-present in the feed stream.