| Ethanol steam reforming over Ni-Cu/Al2O3-MyOz （M = Si, La, Mg, and Zn） catalysts |
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| 作者单位： | School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China
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| 基金项目： | 国家重点基础研究发展规划(973计划)，国家自然科学基金，NCET;and the Program of introducing of discipline to universities，教育部新世纪优秀人才支持计划 |
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| 摘 要： |
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| 关 键 词： | 水蒸气重整反应 镍基催化剂 纳米氧化锌 氧化镁 乙醇 香格里拉 Ni X射线光电子能谱 |
| 收稿时间： | 17 September 2008 |
Ethanol steam reforming over Ni-Cu/Al2O3-MyOz (M=Si, La, Mg,and Zn) catalysts |
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| Authors: | Lifeng Zhang Jie Liu Wei Li Cuili Guo Jinli Zhang |
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| Institution: | School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China |
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| Abstract: | Ni-based catalysts doped with copper additives were studied on their role in ethanol steam reforming reaction.The effects of Ca content,support species involving Al2O3-SiO2,Al2O3-MgO,Al2O3-ZnO,and Al2O3-La2O3,on the catalytic performance were studied.Characterizations by TPR,XRD,NH3-TPD,XPS,and TGA indicated that catalysts 30Ni5Cu/Al2O3-MgO and 30NiSCu/Al2O3-ZnO have much higher H2 selectivity than 30NiSCu/Al2O3-SiO2,as well as good coke resistance.H2 selectivity for 30Ni5Cu/Al2O3-MgO catalyst was 73.3% at 450℃ and increased to 94.0% at 600 ℃,whereas for 30NiSCu/Al2O3-ZnO catalyst,the H2 selectivity was 63.6% at 450 ℃ and 95.2% at 600 ℃.These Al2O3-MgO and Al2O3-ZnO supported Ni-Cu bimetallic catalysts may have important applications in the production of hydrogen by ethanol steam reforming reactions. |
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| Keywords: | ethanol steam reforming nickel-copper-based catalyst Al2O3-SiO2 support Al2O3-MgO support Al2O3-ZnO support Al2O3-La2O3 support |
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