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Hydrogen Production from Methane by Using Composite-Type Oxygen Permeable Membranes

Published online by Cambridge University Press:  01 February 2011

Hitoshi Takamura ,
Masayuki Ogawa ,
Yusuke Aizumi ,
Atsunori Kamegawa  and
Masuo Okada
Hitoshi Takamura
Affiliation:
takamura@material.tohoku.ac.jp, Tohoku Univ., 6-6-02 Aramaki Aza Aoba, Sendai, Miyagi, 980-8579, Japan, +81-22-795-7335, +81-22-795-7335
Masayuki Ogawa
Affiliation:
ogawa@ceram.material.tohoku.ac.jp, Tohoku Univ., Department of Materials Science, Japan
Yusuke Aizumi
Affiliation:
aizumi@ceram.material.tohoku.ac.jp, Tohoku Univ., Department of Materials Science, Japan
Atsunori Kamegawa
Affiliation:
kamegawa@material.tohoku.ac.jp, Tohoku Univ., Department of Materials Science, Japan
Masuo Okada
Affiliation:
okadamas@material.tohoku.ac.jp, Tohoku Univ., Department of Materials Science, Japan
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Abstract

This paper describes preparation and methane reforming characteristics of a proto-type reformer based on a composite-type oxygen permeable membrane. The tape-cast membrane of Sm-doped CeO2 and 15 vol% MnFe2O4 composite was combined with ferric stainless steel separator with a same thermal expansion coefficient. For the reformer module, high CH4 conversion, CO and H2 selectivity of 96%, 84% and 89% were achieved, respectively. Based on C, H and O balances, oxygen permeation flux was found to be 5.7 mu-mol/cm2s. Joule heat caused by the oxygen permeation was estimated to be approximately 17.5 W, and this covered most part of heat required for reforming reactions.

Keywords

ceramicchemical reactioncatalytic
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 885: Symposium A – The Hydrogen Cycle – Generation, Storage and Fuel Cells , 2005 , 0885-A04-08
Copyright
Copyright © Materials Research Society 2006

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References

REFERENCES

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