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Title: Development of mixed-conducting ceramic membrane for hydrogen separation.

Abstract

The Office of Fossil Energy of the US Department of Energy is formulating ''Vision 21,'' a program aimed at developing technologies for highly efficient power and coproduction plants that discharge almost no pollutants and close the carbon cycle. An integrated gasification combined cycle (IGCC) system is a likely modular component of a Vision 21 coproduction plant. IGCC technology is ideally suited for the coproduction of electricity and high-quality transportation fuel and/or a host of high-value chemicals. As part of the IGCC system, high-temperature membranes for separating hydrogen from coal gasification and other partial-oxidation-product streams are being considered. Thin and dense ceramic membranes fabricated from mixed protonic and electronic conductors provide a simple, efficient means for separating hydrogen from gas streams. Dense mixed-conducting ceramic membranes effect transport via ion- and electron-conducting mechanisms. Because these membranes have no interconnected porosity, selectively for hydrogen is nearly 100%. Hydrogen separation is achieved in a nongalvanic mode, i.e., without the need for electrodes and external power supply to drive the separation. BaCeO{sub 3}-based materials exhibit protonic conductivity that is significantly higher than its electronic conductivity. To enhance the electronic conductivity and increase hydrogen permeation, we have fabricated BaCeO{sub 3}-containing cermet membranes and used them inmore » a nongalvanic mode to separate hydrogen from gas streams containing H{sub 2}, CO, CO{sub 2} and trace amounts of H{sub 2}S. Material selection, fabrication, performance as well as technical/technological challenges of the ceramic membranes for hydrogen separation are discussed in this talk.« less

Authors:
; ;
Publication Date:
Research Org.:
Argonne National Lab., IL (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
12434
Report Number(s):
ANL/ET/CP-98598
TRN: AH200120%%338
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Conference
Resource Relation:
Conference: 6th Annual International Pittsburgh Coal Conference, Pittsburgh, PA (US), 10/11/1999--10/15/1999; Other Information: PBD: 20 Aug 1999
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 08 HYDROGEN; CARBON CYCLE; CERAMICS; COAL; COAL GASIFICATION; COMBINED CYCLES; HYDROGEN; MEMBRANES; PITTSBURGH; TRACE AMOUNTS

Citation Formats

Balachandran, U., Dorris, S. E., and Lee, T. H. Development of mixed-conducting ceramic membrane for hydrogen separation.. United States: N. p., 1999. Web.
Balachandran, U., Dorris, S. E., & Lee, T. H. Development of mixed-conducting ceramic membrane for hydrogen separation.. United States.
Balachandran, U., Dorris, S. E., and Lee, T. H. Fri . "Development of mixed-conducting ceramic membrane for hydrogen separation.". United States. https://www.osti.gov/servlets/purl/12434.
@article{osti_12434,
title = {Development of mixed-conducting ceramic membrane for hydrogen separation.},
author = {Balachandran, U. and Dorris, S. E. and Lee, T. H.},
abstractNote = {The Office of Fossil Energy of the US Department of Energy is formulating ''Vision 21,'' a program aimed at developing technologies for highly efficient power and coproduction plants that discharge almost no pollutants and close the carbon cycle. An integrated gasification combined cycle (IGCC) system is a likely modular component of a Vision 21 coproduction plant. IGCC technology is ideally suited for the coproduction of electricity and high-quality transportation fuel and/or a host of high-value chemicals. As part of the IGCC system, high-temperature membranes for separating hydrogen from coal gasification and other partial-oxidation-product streams are being considered. Thin and dense ceramic membranes fabricated from mixed protonic and electronic conductors provide a simple, efficient means for separating hydrogen from gas streams. Dense mixed-conducting ceramic membranes effect transport via ion- and electron-conducting mechanisms. Because these membranes have no interconnected porosity, selectively for hydrogen is nearly 100%. Hydrogen separation is achieved in a nongalvanic mode, i.e., without the need for electrodes and external power supply to drive the separation. BaCeO{sub 3}-based materials exhibit protonic conductivity that is significantly higher than its electronic conductivity. To enhance the electronic conductivity and increase hydrogen permeation, we have fabricated BaCeO{sub 3}-containing cermet membranes and used them in a nongalvanic mode to separate hydrogen from gas streams containing H{sub 2}, CO, CO{sub 2} and trace amounts of H{sub 2}S. Material selection, fabrication, performance as well as technical/technological challenges of the ceramic membranes for hydrogen separation are discussed in this talk.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {8}
}

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