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Title: Chemically stable ceramic-metal composite membrane for hydrogen separation

Abstract

A hydrogen permeation membrane is provided that can include a metal and a ceramic material mixed together. The metal can be Ni, Zr, Nb, Ta, Y, Pd, Fe, Cr, Co, V, or combinations thereof, and the ceramic material can have the formula: BaZr.sub.1-x-yY.sub.xT.sub.yO.sub.3-.delta. where 0.ltoreq.x.ltoreq.0.5, 0.ltoreq.y.ltoreq.0.5, (x+y)>0; 0.ltoreq..delta..ltoreq.0.5, and T is Sc, Ti, Nb, Ta, Mo, Mn, Fe, Co, Ni, Cu, Zn, Ga, In, Sn, or combinations thereof. A method of forming such a membrane is also provided. A method is also provided for extracting hydrogen from a feed stream.

Inventors:
; ;
Publication Date:
Research Org.:
Univ. of South Carolina, Columbia, SC (United States)
Sponsoring Org.:
US Atomic Energy Commission (AEC); USDOE
OSTI Identifier:
1366759
Patent Number(s):
9,687,775
Application Number:
14/678,372
Assignee:
University of South Carolina EFRC
DOE Contract Number:
SC0001061
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Apr 03
Country of Publication:
United States
Language:
English
Subject:
08 HYDROGEN

Citation Formats

Chen, Fanglin, Fang, Shumin, and Brinkman, Kyle S. Chemically stable ceramic-metal composite membrane for hydrogen separation. United States: N. p., 2017. Web.
Chen, Fanglin, Fang, Shumin, & Brinkman, Kyle S. Chemically stable ceramic-metal composite membrane for hydrogen separation. United States.
Chen, Fanglin, Fang, Shumin, and Brinkman, Kyle S. Tue . "Chemically stable ceramic-metal composite membrane for hydrogen separation". United States. doi:. https://www.osti.gov/servlets/purl/1366759.
@article{osti_1366759,
title = {Chemically stable ceramic-metal composite membrane for hydrogen separation},
author = {Chen, Fanglin and Fang, Shumin and Brinkman, Kyle S.},
abstractNote = {A hydrogen permeation membrane is provided that can include a metal and a ceramic material mixed together. The metal can be Ni, Zr, Nb, Ta, Y, Pd, Fe, Cr, Co, V, or combinations thereof, and the ceramic material can have the formula: BaZr.sub.1-x-yY.sub.xT.sub.yO.sub.3-.delta. where 0.ltoreq.x.ltoreq.0.5, 0.ltoreq.y.ltoreq.0.5, (x+y)>0; 0.ltoreq..delta..ltoreq.0.5, and T is Sc, Ti, Nb, Ta, Mo, Mn, Fe, Co, Ni, Cu, Zn, Ga, In, Sn, or combinations thereof. A method of forming such a membrane is also provided. A method is also provided for extracting hydrogen from a feed stream.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 27 00:00:00 EDT 2017},
month = {Tue Jun 27 00:00:00 EDT 2017}
}

Patent:

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  • Various hydrogen production and hydrogen sulfide decomposition processes are disclosed that utilize composite metal membranes that contain an intermetallic diffusion barrier separating a hydrogen-permeable base metal and a hydrogen-permeable coating metal. The barrier is a thermally stable inorganic proton conductor.
  • Various hydrogen production and hydrogen sulfide decomposition processes are disclosed that utilize composite metal membranes that contain an intermetallic diffusion barrier separating a hydrogen-permeable base metal and a hydrogen-permeable coating metal. The barrier is a thermally stable inorganic proton conductor.
  • A membrane is described for extracting hydrogen from fluid streams containing hydrogen, said membrane consisting essentially of: a first nonporous layer of refractory metal or nontitanium alloy of refractory metal being permeable to hydrogen and having a first and second surface and a second nonporous layer coated directly over said first surface and having no oxide there between and attached to said first layer, said second layer consisting essentially of palladium, palladium alloys, platinum or platinum alloys. A method is described of extracting hydrogen from a stream containing hydrogen, said method including the steps of: dissociating hydrogen gas or hydrogenmore » rich molecules into atomic hydrogen on and through a second layer of nonporous membrane consisting of palladium, palladium alloy or platinum, extracting the dissociated hydrogen from the second layer into and through a fist nonporous layer of refractory metal or nontitanium alloy of a refractory metal, there being no oxide between said first and second layers, and protecting the first layer from chemical poisons while promoting permeation through the first layer.« less
  • The primary objective of this study was to prepare and characterize a hydrogen permselective palladium-ceramic composite membrane for high temperature gas separations and catalytic membrane reactors. Electroless plating method was used as a potential route to deposit a thin palladium film on microporous ceramic substrate. The objectives of the work presented here were to characterize the new Pd-ceramic composite membrane by SEM and EDX analysis and to carry out fundamental permeability measurements of the membrane at elevated temperatures and pressures. The potential application of membranes in high temperature gas separation and reactor technology have been recognized by many investigators. Inmore » the coal gasification process, the exit gases are normally hydrogen, carbon monoxide, carbon dioxide, hydrogen sulfide, and water vapor. The objective is to obtain hydrogen from this gas mixture.« less