Study of methane autothermal reforming catalyst
来源期刊：JOURNAL OF RARE EARTHS2014年第2期
论文作者：倪长军 潘立卫 袁中山 曹磊 王树东
文章页码：184 - 188
摘 要：The effects of Ce-ZrOx,Ce-LaOx,Ce-SmOx and Ce-GdOx additions to Rh/Al2O3 catalysts on methane autothermal re-forming were investigated.Activity tests showed that the addition of Ce-ZrOx could significantly reduce the concentration of CO in reformats.When Ce/Zr atomic ratio was 1:1,Ce0.5Zr0.5O2 solid solution with high thermal stability was obtained,which could effectively improve the catalytic performance effectively.The additives of alkaline-earth metals（Mg,K and Ca） on the catalytic properties were also studied.The results of experiments showed that the addition of MgO to Rh/Ce0.5Zr0.5O2/Al2O3 improved the stable performance and the carbon resistance of the catalyst.The optimized catalyst was 0.1%Rh/2.0%MgO/40%Ce0.5Zr0.5O2/Al2O3,which showed a highly stable performance for methane autothermal reforming.
倪长军1,2，潘立卫2，袁中山2，曹磊2，王树东2
1. University of Chinese Academy of Sciences2. Dalian Institute of Chemical Physics,Chinese Academy of Sciences
摘 要：The effects of Ce-ZrOx,Ce-LaOx,Ce-SmOx and Ce-GdOx additions to Rh/Al2O3 catalysts on methane autothermal re-forming were investigated.Activity tests showed that the addition of Ce-ZrOx could significantly reduce the concentration of CO in reformats.When Ce/Zr atomic ratio was 1:1,Ce0.5Zr0.5O2 solid solution with high thermal stability was obtained,which could effectively improve the catalytic performance effectively.The additives of alkaline-earth metals（Mg,K and Ca） on the catalytic properties were also studied.The results of experiments showed that the addition of MgO to Rh/Ce0.5Zr0.5O2/Al2O3 improved the stable performance and the carbon resistance of the catalyst.The optimized catalyst was 0.1%Rh/2.0%MgO/40%Ce0.5Zr0.5O2/Al2O3,which showed a highly stable performance for methane autothermal reforming.
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