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    李玉成, 朱礼玉, 赵静养, 郑丹, 邱梦杰, 刘静, 雷建都. 新型NaNi/C催化剂合成及对糠醛选择性加氢的研究[J]. 北京林业大学学报, 2023, 45(1): 140-147. DOI: 10.12171/j.1000-1522.20220358
    引用本文: 李玉成, 朱礼玉, 赵静养, 郑丹, 邱梦杰, 刘静, 雷建都. 新型NaNi/C催化剂合成及对糠醛选择性加氢的研究[J]. 北京林业大学学报, 2023, 45(1): 140-147. DOI: 10.12171/j.1000-1522.20220358
    shu
    Li Yucheng, Zhu Liyu, Zhao Jingyang, Zheng Dan, Qiu Mengjie, Liu Jing, Lei Jiandu. Synthesis of novel NaNi/C catalyst and selective hydrogenation study of furfural[J]. Journal of Beijing Forestry University, 2023, 45(1): 140-147. DOI: 10.12171/j.1000-1522.20220358
    Citation: Li Yucheng, Zhu Liyu, Zhao Jingyang, Zheng Dan, Qiu Mengjie, Liu Jing, Lei Jiandu. Synthesis of novel NaNi/C catalyst and selective hydrogenation study of furfural[J]. Journal of Beijing Forestry University, 2023, 45(1): 140-147. DOI: 10.12171/j.1000-1522.20220358
    shu

    新型NaNi/C催化剂合成及对糠醛选择性加氢的研究

    Synthesis of novel NaNi/C catalyst and selective hydrogenation study of furfural

      摘要
    • 摘要:
        目的  糠醛可通过选择性加氢转化为四氢糠醇，但常用的铜铬体系催化剂中，金属组分的流失会对环境造成较大危害，反应前催化剂需要高温预还原后方可使用，且反应时的温度和氢气压力条件相对苛刻，因此有必要研发制备和使用成本低、反应条件温和的高效催化剂应用于糠醛选择性加氢制备四氢糠醇。
        方法  本研究采用溶剂热法制备了一种新型的NaNi/C非贵金属催化剂，用于温和条件下糠醛选择性加氢制备四氢糠醇，通过SEM、HRTEM、EDS、XPS、BET、XRD手段对催化剂的结构和性质进行表征，研究影响催化剂性能的因素。
        结果  当使用12NaNi/C时，糠醛与催化剂的质量比为28∶1时，在温和条件下（130 ℃、1 MPa H2）反应1 h后，糠醛的转化率达99.9%，四氢糠醇的收率达76.2%。结合多种表征结果发现：添加适量的乙酸钠可增强Ni和O的相互作用，增大催化剂的比表面积，减小FCC-Ni晶体的粒径，提高Ni的分散性和催化传质效率；由于Ni和O的化学环境发生变化，使得糠醛的醛基氧和呋喃环上的大π键更容易与Ni发生相互作用，从而提高了糠醛的转化效率。
        结论  本研究以邻香草醛作为螯合剂，使用溶剂热法制备了一种新型的NaNi/C非贵金属催化剂，可直接用于温和条件下糠醛的高效选择性加氢制备四氢糠醇，为工业生产四氢糠醇提供了一种低成本的解决方案。

       

      Abstract:
        Objective  Furfural can be converted to tetrahydrofurfuryl alcohol by selective hydrogenation, but the loss of metal components in the commonly used copper-chromium system catalysts can cause greater environmental hazards, and the catalysts require high temperature pre-reduction before use, and the temperature and hydrogen pressure conditions during the reaction are relatively harsh. Therefore, it is necessary to develop an efficient catalyst with low preparation and use costs for the selective hydrogenation of furfural to tetrahydrofurfuryl alcohol under mild condition.
        Method  In this paper, a novel NaNi/C non-precious metal catalyst was prepared by the solvothermal method for the selective hydrogenation of furfural to tetrahydrofurfuryl alcohol under mild conditions, and the structure and properties of the catalyst were characterized by SEM, HRTEM, EDS, XPS, BET, and XRD to investigate the factors affecting the catalyst performance.
        Result  When 12NaNi/C was used and the mass ratio of furfural to catalyst was 28∶1, the conversion of furfural reached 99.9% and the yield of tetrahydrofurfuryl alcohol reached 76.2% after 1 h reaction under mild conditions (130 ℃, 1 MPa H2). Combined with various characterization results, we found that the addition of an appropriate amount of sodium acetate could enhance the interaction between Ni and O, increase the specific surface area of the catalyst, reduce the particle size of FCC-Ni crystals, and improve the dispersion of Ni and catalytic mass transfer efficiency; due to the change of the chemical environment of Ni and O, it made it easier for the aldehyde oxygen of furfural and the large π-bonds on the furan ring to interact with Ni, thus improving the furfural conversion efficiency.
        Conclusion  In this paper, a novel NaNi/C non-precious metal catalyst was prepared by a solvothermal method using o-vanillin as a chelating agent, which can be directly used for the efficient and selective hydrogenation of furfural under mild conditions to prepare tetrahydrofurfuryl alcohol, providing a low-cost solution for the industrial production of tetrahydrofurfuryl alcohol.

       

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