| 摘要 |
PURPOSE:To shorten the starting time of a reformer and prevent the occurrence of carbon-deposition reaction by supporting rhodium on a catalyst carrier consisting of a heat-resistant inorganic substance and using the rhodium as a catalyst for steam-reforming process combined with a partial oxidative exothermic reaction. CONSTITUTION:A reforming stock gas composed mainly of hydrocarbon is supplied to a reaction tube 2 of a fuel reformer 1 packed with a reforming catalyst 3 and the reforming catalyst layer 3 is heated from the outside of the reaction tube 2 to effect the steam-reforming of the hydrocarbon and produce a hydrogen-rich reformed gas for fuel cell. The above steam-reforming process has the following construction. Oxygen or air is added to the reforming stock gas at the inlet of the reforming catalyst layer 3 to heat the layer 3 from inside by the partial oxidation of the stock hydrocarbon. The reforming catalyst 3 is produced by supporting rhodium on a porous catalyst carrier consisting of a heat-resistant inorganic substance composed mainly of zirconium oxide, magnesium oxide, silicon oxide, aluminum oxide, etc., or their mixture. |
