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

Abstract

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:
Research Org.:
SRI INTERNATIONAL, Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1248913
Patent Number(s):
9321015
Application Number:
14/190,100
Assignee:
SRI INTERNATIONAL (Menlo Park, CA)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02C - CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
DOE Contract Number:  
FC26-07NT43090
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Feb 26
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Jayaweera, Indira, Krishnan, Gopala N., Sanjurjo, Angel, Jayaweera, Palitha, and Bhamidi, Srinivas. Process for fabricating PBI hollow fiber asymmetric membranes for gas separation and liquid separation. United States: N. p., 2016. Web.
Jayaweera, Indira, Krishnan, Gopala N., Sanjurjo, Angel, Jayaweera, Palitha, & Bhamidi, Srinivas. Process for fabricating PBI hollow fiber asymmetric membranes for gas separation and liquid separation. United States.
Jayaweera, Indira, Krishnan, Gopala N., Sanjurjo, Angel, Jayaweera, Palitha, and Bhamidi, Srinivas. Tue . "Process for fabricating PBI hollow fiber asymmetric membranes for gas separation and liquid separation". United States. https://www.osti.gov/servlets/purl/1248913.
@article{osti_1248913,
title = {Process for fabricating PBI hollow fiber asymmetric membranes for gas separation and liquid separation},
author = {Jayaweera, Indira and Krishnan, Gopala N. and Sanjurjo, Angel and Jayaweera, Palitha and Bhamidi, Srinivas},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {4}
}

Works referenced in this record:

Process for forming asymmetric gas separation membranes having graded density skins
patent, October 1989


Production of low-ethanol beverage by membrane extraction
patent, May 1991


Polybenzazole polymers containing indan moieties
patent, July 1991


Novel multicomponent fluid separation membranes
patent, February 1992


Process of treating alcoholic beverages by vapor-arbitrated pervaporation
patent, September 1992


Hollow fiber membranes and method of manufacture
patent, November 1997


Ultrathin high-performance hollow fiber membranes
patent, January 2000


Asymmetric hollow fiber gas separation membrane and gas separation method
patent, August 2010


Solvent-resistant microporous polybenzimidazole membranes
patent-application, August 2003


Polybenzimidazole-Based Membranes for the Dehydration of Organic Liquids Via Pervaporation
patent-application, November 2011


Polyimide Membranes and Method of Production
patent-application, May 2014


Process for Fabricating PBI Hollow Fiber Asymmetric Membranes for Gas Separation and Liquid Separation
patent-application, June 2014