Hydrogen production from methane by using composite-type oxygen permeable membranes

Hitoshi Takamura, Masayuki Ogawa, Yusuke Aizumi, Atsunori Kamegawa, Masuo Okada

Research output: Contribution to journalConference articlepeer-review

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 - 15 vol% MnFe2O 4 composite was combined with a ferric stainless steel separator with a same thermal expansion coefficient. For the reformer module, high CH 4 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 μmol/cm2 s. Joule heat caused by oxygen permeation was estimated to be approximately 17.5 W, and this covered most part of heat required for reforming reactions.

Original languageEnglish
Pages (from-to)117-121
Number of pages5
JournalMaterials Research Society Symposium Proceedings
Volume885
Publication statusPublished - 2006 Aug 23
Event2005 MRS Fall Meeting - Boston, MA, United States
Duration: 2005 Nov 282005 Dec 2

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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