| 水及还原温度对氧化铕促进的Cu—ZnO催化剂上甘油氢解性能的影响 |
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| 引用本文： | 陈长林,於德伟. 水及还原温度对氧化铕促进的Cu—ZnO催化剂上甘油氢解性能的影响[J]. 陶瓷科学与艺术, 2010, 0(1): 7-11,36 |
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| 作者姓名： | 陈长林 於德伟 |
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| 作者单位： | 南京工业大学化学化工学院,材料化学工程国家重点实验室,江苏南京210009 |
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| 基金项目： | 教育部博士点基金联合资助项目(20070291007); 江苏省自然科学基金资助项目(BK2008375) |
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| 摘 要： | 采用共沉淀法制备了氧化铕（Eu2O3）促进的Cu—ZnO催化剂，通过X射线衍射（XRD）、N2O脉冲吸附等手段对所制备的催化剂物化性质进行表征，考察了它们在连续流动固定床反应器中甘油氢解反应的催化性能，讨论了反应液中水的质量分数及还原温度对Eu2O3促进的Cu—ZnO催化性能的影响．结果表明：引入Eu203不改变甘油氢解反应的产物分布，但能显著提高催化剂的稳定性；减少反应液中水含量及降低还原温度有利于提高催化剂的稳定性；稀土Eu2O3能够增强Cu—ZnO的抗水氧化能力，使催化剂表面Cu^0难被水氧化而不易失活。
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| 关 键 词： | Cu—ZnO催化剂 氧化铕 甘油 氢解 |
Influence of water and reduction temperature on catalytic performance of Eu_2O_3 promoted Cu-ZnO catalyst in the hydrogenolysis of glycerol |
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| CHEN Chang-lin,YU De-wei. Influence of water and reduction temperature on catalytic performance of Eu_2O_3 promoted Cu-ZnO catalyst in the hydrogenolysis of glycerol[J]. Ceramics Science & Art, 2010, 0(1): 7-11,36 |
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| Authors: | CHEN Chang-lin YU De-wei |
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| Affiliation: | CHEN Chang-lin,YU De-wei(State Key Laboratory of Materials-Oriented Chemical Engineering,College of Chemistry and Chemical Engineering,Nanjing University of Technology,Nanjing 210009,China) |
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| Abstract: | Eu2O3 promoted Cu-ZnO catalysts were prepared by a co-precipitation method,their physical and chemical properties were characterized by X-ray diffraction(XRD) and N2O pulse chemisorption,and their catalytic performances for glycerol hydrogenolysis to 1,2-propanediol were studied in a continuous flow fixed bed reactor.The effects of the mass fraction of water in the reaction mixture and reduction temperature on catalytic performance of Eu2O3 promoted Cu-ZnO catalysts were discussed.Catalytic tests demonstrat... |
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| Keywords: | Cu-ZnO catalyst europium oxide glycerol hydrogenolysis |
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