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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
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.

Type
Research Article
Copyright
Copyright © Materials Research Society 2006

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References

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