2112 SOFC間接内部改質を想定したメタン改質実験(J17-1 燃料電池(1) 固体酸化物形燃料電池,ジョイントセッション,21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

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This paper refers to the experimental performance evaluation of a tubular type steam reformer for indirect internal reforming in solid oxide fuel cell power generation systems. In the experiment, the spherical ruthenium catalysts were filled inside the reactor. Methane, steam and carbon dioxide mixture was supplied into the reactor, which was set inside the electric furnace. The composition of dry gas after reforming was measured with a gas chromatograph equipment. Throughout the experiments, we obtained the relationship between the methane conversion ratio to concentration of carbon dioxide. It was clarified that the reforming temperature, the methane, steam and carbon dioxide mixture to methane ratio and the fuel flow rate affected the methane conversion ratio. However, concentration of carbon dioxide didn't affect methane conversion ratio at high temperature. In any conditions of carbon dioxide concentration, the composition of dry gas after reforming proceeds to equilibrium state.
2008-08-02