Process for fabricating PBI hollow fiber asymmetric membranes for gas separation and liquid separation

Jayaweera, Indira; Krishnan, Gopala N.; Sanjurjo, Angel; Jayaweera, Palitha; Bhamidi, Srinivas

Title: Process for fabricating PBI hollow fiber asymmetric membranes for gas separation and liquid separation

Patent · Tue Apr 26 00:00:00 EDT 2016

OSTI ID:1248913

Jayaweera, Indira; Krishnan, Gopala N.; Sanjurjo, Angel; Jayaweera, Palitha; Bhamidi, Srinivas

The invention provides methods for preparing an asymmetric hollow fiber, the asymmetric hollow fibers prepared by such methods, and uses of the asymmetric hollow fibers. One method involves passing a polymeric solution through an outer annular orifice of a tube-in-orifice spinneret, passing a bore fluid though an inner tube of the spinneret, dropping the polymeric solution and bore fluid through an atmosphere over a dropping distance, and quenching the polymeric solution and bore fluid in a bath to form an asymmetric hollow fiber.

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Research Organization:: SRI INTERNATIONAL, Menlo Park, CA (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: FC26-07NT43090

Assignee:: SRI INTERNATIONAL (Menlo Park, CA)

Patent Number(s):: 9,321,015

Application Number:: 14/190,100

OSTI ID:: 1248913

Resource Relation:: Patent File Date: 2014 Feb 26

Country of Publication:: United States

Language:: English

References (15)

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Process for Fabricating PBI Hollow Fiber Asymmetric Membranes for Gas Separation and Liquid Separation Jayaweera, Imdira; Krishnan, Gopala N.; Sanjurjo, Angel https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20140175007 US Patent Application 14/190100; 20140175007	patent-application	June 2014

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