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

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.
Inventors:
; ; ; ;
Issue Date:
OSTI Identifier:
1248913
Assignee:
SRI INTERNATIONAL (Menlo Park, CA) NETL
Patent Number(s):
9,321,015
Application Number:
14/190,100
Contract Number:
FC26-07NT43090
Resource Relation:
Patent File Date: 2014 Feb 26
Research Org:
SRI INTERNATIONAL, Menlo Park, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY