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Hydrodeoxygenation of benzyl alcohol on transition-metal-containing mixed oxides catalysts derived from layered double hydroxide precursors

机译:苄醇对衍生自层双氢氧化物前体的过渡金属的混合氧化物催化剂的加氢氧基

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摘要

M-MgAlO mixed oxide catalysts were prepared by controlled thermal decomposition of layered double hydroxides (LDH) precursors and were tested in the hydrodeoxygenation of benzyl alcohol. LDH with Mg/Al= 3 and 10 at. % M with respect to cations (M = Mn, Fe, Co, Ni, Cu and Zn) were obtained by coprecipitation. A second series of copper-containing catalysts with copper content from 5 to 20 at. % was also prepared. The solids were characterized by X-ray diffraction, N-2 adsorption/desorption, temperature-programmed reduction in H-2 atmosphere, temperature-programmed desorption of CO2. The influence of the transition metal and, for the copper-containing samples, of the copper loading, reaction temperature, reaction time, amount of catalyst and reduction pre-treatment on the catalytic performance were investigated. With 97% alcohol conversion and 96% selectivity to toluene, Cu15MgAlO is the best hydrodeoxygenation catalyst. It was also tested in the hydrodeoxygenation of 1-heptanol.
机译:通过层状双氢氧化物(LDH)前驱体的控制热分解制备了M-MgAlO混合氧化物催化剂,并在苯甲醇的加氢脱氧中进行了测试。含Mg/Al=3和10 at的LDH.%通过共沉淀获得了与阳离子(M=Mn、Fe、Co、Ni、Cu和Zn)有关的M。第二系列含铜催化剂,铜含量为5至20 at.%他也准备好了。通过X射线衍射、N-2吸附/脱附、H-2气氛中的程序升温还原、CO2的程序升温脱附对固体进行了表征。研究了过渡金属以及铜负载量、反应温度、反应时间、催化剂用量和还原预处理对催化剂性能的影响。Cu15MgAlO的醇转化率为97%,甲苯选择性为96%,是最佳的加氢脱氧催化剂。在1-庚醇的加氢脱氧中也进行了试验。

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  • 来源
    《Catalysis Today》 |2021年第1期|共10页
  • 作者单位

    Univ Bucharest Fac Chem Dept Organ Chem Biochem &

    Catalysis Lab Chem Technol &

    Catalysis 4-12 Blvd Regina Elisabeta Bucharest 030018 Romania;

    Sorbonne Univ Inst Jean Le Rond dAlembert Equipe Combust Energie Propre &

    Turbulence CNRS UMR 7190 2 Pl Gare Ceinture F-78210 St Cyr Lecole France;

    Univ Bucharest Fac Chem Res Ctr Catalysts &

    Catalyt Proc 4-12 Blvd Regina Elisabeta Bucharest 030018 Romania;

    Univ Bucharest Fac Chem Dept Organ Chem Biochem &

    Catalysis Lab Chem Technol &

    Catalysis 4-12 Blvd Regina Elisabeta Bucharest 030018 Romania;

    Sorbonne Univ Inst Jean Le Rond dAlembert Equipe Combust Energie Propre &

    Turbulence CNRS UMR 7190 2 Pl Gare Ceinture F-78210 St Cyr Lecole France;

    Univ Bucharest Fac Chem Dept Organ Chem Biochem &

    Catalysis Lab Chem Technol &

    Catalysis 4-12 Blvd Regina Elisabeta Bucharest 030018 Romania;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 O643;TQ032;
  • 关键词

    Transition-metal; Copper; LDH; Catalytic hydrodeoxygenation; Benzyl alcohol;

    机译:过渡金属;铜;LDH;催化加氢脱氧;苄醇;

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