Methane Steam Reforming in a Zirconia Membrane Reactor

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  • Kusakabe Katsuki
    Department of Living Environmental Science, Fukuoka Women’s University
  • Mizoguchi Hitomi
    Department of Living Environmental Science, Fukuoka Women’s University

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Methane steam reforming (MSR) over a Rh-loaded Ce0.15Zr0.85O2 catalyst in a membrane reactor was investigated. An yttria-stabilized zirconia (YSZ) membrane used in the membrane reactor showed an ideal H2/N2 selectivity of 6.6 at a H2 permeance of 3.3 × 10–6 mol m–2 s–1 Pa–1 at 500°C. Methane conversions in the membrane reactor were higher than those in a packed bed reactor due to the sufficient permeation rate of hydrogen, which shifted the equilibrium, reaching 82% at 550°C. To evaluate the stability of a membrane reactor, the methane conversion was measured as a function of time. As a result, no significant change in methane conversion was evident at 500°C for 7 h.

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