| Cu/ZnO-Pd/WO3/ZrO2催化甘油氢解制取1,2-丙二醇 |
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| 引用本文： | 狄清林,陈长林.Cu/ZnO-Pd/WO3/ZrO2催化甘油氢解制取1,2-丙二醇[J].南京工业大学学报(自然科学版),2012,34(4):50-54. |
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| 作者姓名： | 狄清林 陈长林 |
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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： | 江苏省自然科学基金资助项目 |
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| 摘 要： | 为了提高铜基催化利在甘油氢解制1,2-丙二醇反应中的稳定性,制备Cu/ZnO和Pd/WO3/ZRO2混合催化剂采用H2程序升温还原（H2-TPR）、NH3程序升温脱附（NH3-TPD）和N2吸附技术对催化剂的还原性能、酸性进行表征。在连续流动固定床反应器中考察Cu/ZnO-Pd/WO3/ZrO2混合催化剂对甘油氢解反应的催化活性和稳定性。结果表明:添加Pd/WO3/ZrO2可降低Cu/ZnO催化剂的还原温度;混合催化剂催化甘油氢解制1,2-丙二醇的稳定性与WO3/ZrO2的酸密度有顺变关系,WO3/ZrO3的酸密度越高,所构成的混合催化剂稳定性越好;均匀混合的Cu/ZnO-Pd/WO3/ZrO2催化剂对甘油氢解反应催化活性和稳定性高。
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| 关 键 词： | Cu ZnO WO3稳定的ZrO2 Pd 甘油 1 2-丙二醇 |
Cu/ZnO-Pd/WO3/ZrO2 catalyst for glycerol hydrogenolysis to 1,2-propanediol |
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| DI Qinglin
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CHEN Changlin.Cu/ZnO-Pd/WO3/ZrO2 catalyst for glycerol hydrogenolysis to 1,2-propanediol[J].Journal of Nanjing University of Technology,2012,34(4):50-54. |
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| Authors: | DI Qinglin CHEN Changlin |
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| Institution: | (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: | To improve the stability of Cu-based catalysts,the mixture of Cu/ZnO and Pd/WO3/ZrO2 for hydrogenolysis of glycerol producing 1,2-propanediol was prepared.The physic-chemical properties of the catalyst were characterized by hydrogen temperature-programmed reduction（H2-TPR）,temperature-programmed desorption of ammonia（NH3-TPD）and Brunauer-Emmett-Teller（BET）specific surface areas. The mixture catalytic performance for hydrogenolysis of glycerol to 1,2-propanediol was investigated in a continuous flow fixed-bed reactor.Results showed that Pd/WO3/ZrO2 enhanced redueibility of Cu/ZnO. The activity and stability of the combined catalyst Cu/ZnO-Pd/WO3/ZrO2 was related to the acid density of WO3ZrO2.The well-combined catalyst of Cu/ZnO and Pd/WO3/ZrO2 had the highest activity and stability. |
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| Keywords: | copper zinc oxide tungstaled zirconia palladium glycerol 1 2-propanediol |
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