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:
Sep. 24, 2013
Filed:
Mar. 21, 2011
Chunqing Liu, Schaumburg, IL (US);
Jaime G. Moscoso, Mount Prospect, IL (US);
Stephen T. Wilson, Libertyville, IL (US);
Chunqing Liu, Schaumburg, IL (US);
Jaime G. Moscoso, Mount Prospect, IL (US);
Stephen T. Wilson, Libertyville, IL (US);
UOP LLC, Des Plaines, IL (US);
Abstract
The present invention discloses microporous UZM-5 zeolite membranes, methods for making the same, and methods of separating gases, vapors, and liquids using the same. The small-pore microporous UZM-5 zeolite membrane is prepared by two different methods, including in-situ crystallization of one or more layers of UZM-5 zeolite crystals on a porous membrane support, and a seeding method by in-situ crystallization of a continuous second layer of UZM-5 zeolite crystals on a seed layer of UZM-5 zeolite crystals supported on a porous membrane support. The membranes in the form of disks, tubes, or hollow fibers have superior thermal and chemical stability, good erosion resistance, high COplasticization resistance, and significantly improved selectivity over polymer membranes for gas, vapor, and liquid separations.