Subject Area物理化学
Production of Hydrogen by Steam Reforming of Bio-ethanol over Ceria-supported Metal Catalysts
Zhang BC(张保才); Tang XL(唐晓兰); Li Y(李勇); Xu YD(徐奕德); Shen WJ(申文杰)
Conference Name13th International Congress on Catalysis
Conference Date2004-07-11
Conference Place法国
Alternative Title氧化铈担载的金属催化剂上生物质乙醇水蒸汽重整制氢
AbstractNovel ceria-supported Ni,Ir,Co and Cu catalysts with metal loadings ranging from 2-5% were extensively studied for hydrogen production by steam reforming of bio-ethanol. The temperature dependence of hydrogen yield and ethanol conversion over these catalysts demonstrated that the Ir/CeO2 catalyst showed the highest activity,especially in the temperature range between 623K and 773K, which is favorable for the steam reforming of ethanol reaction. The Ni/CeO2 catalyst exhibited the highest ethanol conversion at 523K,mainly due to the decomposition of ethanol to methane, carbon monoxide and hydrogen. The activity for the steam reforming over Co/CeO2 steeply increases with the reaction temperatures,and it always produces a little methane. However,with continous increase in the reaction temperature, Cu/CeO2 initially gave less ethanol conversion,followed by a sharp increase and a steady drop again, during which a wide product distribution was observed.A careful analysis of intermediates spectra implied that different reaction pathways proceeded over these catalysts, mainly governed by the active metal employed.
Document Type会议论文
Corresponding AuthorShen WJ(申文杰)
Recommended Citation
GB/T 7714
Zhang BC,Tang XL,Li Y,et al. Production of Hydrogen by Steam Reforming of Bio-ethanol over Ceria-supported Metal Catalysts[C],2004:237/1.
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