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. 01, 2011
Filed:
Nov. 08, 2007
Chunqing Liu, Schaumburg, IL (US);
David A. Lesch, Hoffman Estates, IL (US);
Stephen T. Wilson, Libertyville, IL (US);
Chunqing Liu, Schaumburg, IL (US);
David A. Lesch, Hoffman Estates, IL (US);
Stephen T. Wilson, Libertyville, IL (US);
UOP LLC, Des Plaines, IL (US);
Abstract
The present invention discloses a new type of high performance mixed matrix membranes (MMMs) and methods for making and using the same. The MMMs comprise a continuous polymer matrix and at least two types of molecular sieves dispersed therein. The continuous polymer matrix in the MMM contains at least one type of polymer. The MMM in the form of a dense film, asymmetric flat sheet membrane or otherwise prepared exhibits simultaneously improved selectivity and permeability for gas separations compared to polymer membranes made from a continuous polymer matrix without any molecular sieves or with only one type of molecular sieve. MMMs of the present invention are suitable for a wide range of gas, vapor, and liquid separations such as alcohol/water, CO/CH, H/CH, O/N, CO/N, olefin/paraffin, iso/normal paraffins, and other light gases separations.