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首页> 外文期刊>New Journal of Chemistry >Studies on continuous selective hydrogenolysis of glycerol over supported Cu-Co bimetallic catalysts
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Studies on continuous selective hydrogenolysis of glycerol over supported Cu-Co bimetallic catalysts

机译：支持Cu-Co双金属催化剂中甘油连续选择性氢解的研究

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摘要

Alumina supported copper-cobalt catalysts were made and screened for continuous hydrogenolysis of glycerol to 1,2-propanediol at atmospheric pressure. BET surface area, temperature-programmed reduction, X-ray diffraction, pulse N2O chemisorption, transmission electron microscopy and X-ray photoelectron spectroscopy techniques were used to derive the characteristics of the catalysts. The presence of Co in Cu/alumina significantly increased the reducibility of CuO species and also the metallic Cu surface area. The catalyst with 10%Cu-7%Co on Al2O3 afforded complete glycerol conversion with 77% selectivity to 1,2-propanediol. The catalysts activity was found to be mainly due to the existence of Cu in a highly dispersed state with a high metal surface area and synergistic interactions between the Cu-Co moieties. The influence of the reaction parameters was investigated and the best possible parameters were determined. The most active catalyst showed high stability during the time on stream analysis.
机译：制备氧化铝支持铜 - 钴催化剂并筛选在大气压下连续氢化甘油至1,2-丙二醇。 BET表面积，温度编程的还原，X射线衍射，脉冲N2O化学吸附，透射电子显微镜和X射线光电子能谱技术用于得出催化剂的特性。 Cu /氧化铝中的CO的存在显着增加了CuO物种的再还原性，也是金属Cu表面积。在Al 2 O 3上具有10％Cu-7％Co的催化剂得到完全甘油转化，其选择性为77％至1,2-丙二醇。发现催化剂活性主要是由于在高度分散状态下存在具有高金属表面积的Cu和Cu-Co部分之间的协同相互作用。研究了反应参数的影响，并确定了最佳的参数。最活跃的催化剂在流分析期间显示出高稳定性。

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  • 来源
    《New Journal of Chemistry》 |2020年第7期|共7页
  • 作者

    Raju Narsinga; Rekha Voggu; Abhishek Burri; Kumar Peddagolla Mahesh; Sumana Chenna; Lingaiah Nakka;

  • 作者单位

    CSIR Indian Inst Chem Technol Dept Catalysis &

    Fine Chem Hyderabad 500007 Telangana India;

    CSIR Indian Inst Chem Technol Dept Catalysis &

    Fine Chem Hyderabad 500007 Telangana India;

    CSIR Indian Inst Chem Technol Dept Catalysis &

    Fine Chem Hyderabad 500007 Telangana India;

    CSIR Indian Inst Chem Technol Dept Catalysis &

    Fine Chem Hyderabad 500007 Telangana India;

    CSIR Indian Inst Chem Technol Dept Catalysis &

    Fine Chem Hyderabad 500007 Telangana India;

    CSIR Indian Inst Chem Technol Dept Catalysis &

    Fine Chem Hyderabad 500007 Telangana India;

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  • 正文语种 eng
  • 中图分类 化学;
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