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. 12, 2020
Filed:
Dec. 22, 2017
Jian Zheng, Williamsville, NY (US);
Neil A. Stephenson, East Amherst, NY (US);
Steven J. Pontonio, Eden, NY (US);
Christopher D. Schotz, Sanborn, NY (US);
Philip A. Barrett, Tonawanda, NY (US);
Jian Zheng, Williamsville, NY (US);
Neil A. Stephenson, East Amherst, NY (US);
Steven J. Pontonio, Eden, NY (US);
Christopher D. Schotz, Sanborn, NY (US);
Philip A. Barrett, Tonawanda, NY (US);
PRAXAIR TECHNOLOGY, INC., Danbury, CT (US);
Abstract
The present invention relates generally to an attrition resistant core-in-shell composite adsorbent comprising at least a zeolite-containing COremoval adsorbent and a binder on an inert dense core. The attrition resistant core-in-shell composite adsorbent has an attrition loss of less than about 2 wt %. The core-in-shell composite adsorbent is preferably used in a multi-layered adsorption system in a cyclic adsorption process, preferably used in a PSA prepurification process prior to cryogenic air separation.