| CuO-CexZr1-xO2上催化乙醇脱氢合成乙酸乙酯的研究 |
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| 引用本文： | 尹艳春,滕灼光,张飞跃.CuO-CexZr1-xO2上催化乙醇脱氢合成乙酸乙酯的研究[J].稀土,2012,33(4):68-72. |
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| 作者姓名： | 尹艳春 滕灼光 张飞跃 |
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| 作者单位： | 1. 广西卫生职业技术学院,广西南宁,530023
2. 广西大学化学化工学院,广西南宁,530004 |
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| 摘 要： | 用改进的柠檬酸络合法制备CuO-CexZr1-xO2催化剂,用XRD和TPR研究了催化剂的物理化学性质,无氧条件下研究它对乙醇的催化作用。结果表明,催化剂物相是固溶体CexZr1-xO2,CuO是分散存在的。当Cu含量为5%(质量分数)、摩尔比Ce∶Zr比为1∶1、温度300℃、乙醇质量空速1.0 h-1时,乙醇转化为乙酸乙酯的选择性最好,达到71.5%,乙醇转化率最高,为74.7%。
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| 关 键 词： | CuO CexZr1-xO2 乙醇 乙酸乙酯 脱氢 |
Preparation of Ethyl Acetate by Ethanol Dehydrogenation over CuO-CexZr1-xO2 Catalysts |
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| YIN Yan-chun
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TENG Zhuo-guang
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ZHANG Fei-yue.Preparation of Ethyl Acetate by Ethanol Dehydrogenation over CuO-CexZr1-xO2 Catalysts[J].Chinese Rare Earths,2012,33(4):68-72. |
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| Authors: | YIN Yan-chun TENG Zhuo-guang ZHANG Fei-yue |
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| Affiliation: | 1.Guangxi Health Vocational & Technical College,Nanning 530023,China; 2.College of Chemistry and Chemical Engineering,Guangxi University,Nanning 530004,China) |
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| Abstract: | CuO-CexZr1-xO2 catalysts were prepared by the improved amorphous citric precursor(IACP) method and characterized by X-ray diffraction(XRD) and temperature programmed reduction(TPR).Catalytic activity of the catalysts for ethanol dehydrogenation without oxygen was investigated.Results show that the main phase is CexZr1-xO2 and CuO is dispersed in CexZr1-xO2.When the content of Cu in CuO-CexZr1-xO2 is 5%,reaction temperature 300℃ and the weight space velocity of ethanol 1.0h-1,CuO-CexZr1-xO2 exhibits the best catalytic activity,correspondly with the transformation of ethanol 74.7% and the selectivity of ethyl acetate was 71.5%. |
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| Keywords: | CuO CexZr1-xO2 ethanol ethyl acetate dehydrogenation |
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