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Title: Brazing as a Means of Sealing Ceramic Membranes for use in Advanced Coal Gasification Processes

Abstract

Coal is potentially a very inexpensive source of clean hydrogen fuel for use in fuel cells, turbines, and various process applications. To realize its potential however, efficient, low-cost gas separation systems are needed to provide high purity oxygen to enhance the coal gasification reaction and to extract hydrogen from the resulting gas product stream. Several types of inorganic membranes are being developed for hydrogen or oxygen separation, including porous alumina, transition metal oxide perovskites, and zirconia. One of the key challenges in developing solid-state membrane based gas separation systems is in hermetically joining the membrane to the metallic body of the separation device. In an effort to begin addressing this issue, a new brazing concept has been developed, referred to as reactive air brazing. This paper discusses the details of this joining technique and illustrates its use in bonding a wide variety of materials, including alumina, lanthanum strontium cobalt ferrite, and yttria stabilized zirconia.

Authors:
; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
876831
Report Number(s):
PNNL-SA-42914
Journal ID: ISSN 0016-2361; FUELAC; AA1510100; TRN: US200608%%299
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Fuel, 85(2):156-162; Journal Volume: 85; Journal Issue: 2
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 08 HYDROGEN; 30 DIRECT ENERGY CONVERSION; BONDING; BRAZING; CERAMICS; COAL; COAL GASIFICATION; COBALT; FERRITE; FUEL CELLS; HYDROGEN; HYDROGEN FUELS; LANTHANUM; MEMBRANES; OXIDES; OXYGEN; PEROVSKITES; STRONTIUM; TRANSITION ELEMENTS; TURBINES; air brazing; coal gasification; oxygen-ion conductors; oxide fuel cells; alloys; SOFCs; interfaces; gas; CO2

Citation Formats

Weil, K. Scott, Hardy, John S., Rice, Joseph P., and Kim, Jin Yong Y. Brazing as a Means of Sealing Ceramic Membranes for use in Advanced Coal Gasification Processes. United States: N. p., 2006. Web. doi:10.1016/j.fuel.2005.07.023.
Weil, K. Scott, Hardy, John S., Rice, Joseph P., & Kim, Jin Yong Y. Brazing as a Means of Sealing Ceramic Membranes for use in Advanced Coal Gasification Processes. United States. doi:10.1016/j.fuel.2005.07.023.
Weil, K. Scott, Hardy, John S., Rice, Joseph P., and Kim, Jin Yong Y. Mon . "Brazing as a Means of Sealing Ceramic Membranes for use in Advanced Coal Gasification Processes". United States. doi:10.1016/j.fuel.2005.07.023.
@article{osti_876831,
title = {Brazing as a Means of Sealing Ceramic Membranes for use in Advanced Coal Gasification Processes},
author = {Weil, K. Scott and Hardy, John S. and Rice, Joseph P. and Kim, Jin Yong Y.},
abstractNote = {Coal is potentially a very inexpensive source of clean hydrogen fuel for use in fuel cells, turbines, and various process applications. To realize its potential however, efficient, low-cost gas separation systems are needed to provide high purity oxygen to enhance the coal gasification reaction and to extract hydrogen from the resulting gas product stream. Several types of inorganic membranes are being developed for hydrogen or oxygen separation, including porous alumina, transition metal oxide perovskites, and zirconia. One of the key challenges in developing solid-state membrane based gas separation systems is in hermetically joining the membrane to the metallic body of the separation device. In an effort to begin addressing this issue, a new brazing concept has been developed, referred to as reactive air brazing. This paper discusses the details of this joining technique and illustrates its use in bonding a wide variety of materials, including alumina, lanthanum strontium cobalt ferrite, and yttria stabilized zirconia.},
doi = {10.1016/j.fuel.2005.07.023},
journal = {Fuel, 85(2):156-162},
number = 2,
volume = 85,
place = {United States},
year = {Mon Jan 02 00:00:00 EST 2006},
month = {Mon Jan 02 00:00:00 EST 2006}
}