磷化镍的制备及其催化糠醛加氢制备环戊酮
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O643.3

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Preparation of Ni-P and Catalysis Furfural Hydrogenation to Cyclopentanone
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    摘要:

    采用溶剂热法合成磷化镍(Ni-P)催化剂,在180 ℃水热釜中,以NiCl2·6H2O为镍源、NaH2PO2·H2O为磷源、乙二醇为溶剂、n(P):n(Ni)=3:1,经12 h高温制备得到,并采用XRD、SEM、H2-TPR、N2吸附脱附对催化剂进行表征。催化剂应用于糠醛加氢制备环戊酮的反应中效果良好,考察结果显示较优的工艺条件为:以水作为溶剂,原料与催化剂质量比为12,在反应温度150 ℃、反应压力2.0 MPa、转速600 r/min的情况下反应4 h,糠醛转化率达到98.87%,环戊酮收率为68.65%。对催化剂进行稳定性测试,5次重复使用之后环戊酮收率下降3.25%,考虑到重复实验中催化剂的损失可以视为催化剂重复性良好。

    Abstract:

    Ni-P catalysts were prepared by the solvothermal method. Ethylene glycol, NiCl2•6H2O and NaH2PO2•H2O were used as the solvent, the nickel source and the phosphorous source respectively, where n(P):n(Ni)=3:1. Catalysts were characterized by XRD, SEM, TEM, H2-TPR, H2-TPD, N2 adsorption-desorption as well as XPS. Then, experiments were carried out to evaluate Ni-P catalysts under different reaction conditions. Ni-P catalysts exhibited outstanding performance during the hydrogenation reaction under optimized conditions, where the conversion of furfural and the yield of cyclopentanone reached 98.87% and 68.65%. Finally, research results indicated that no obvious decrease were observed in catalytic performance after 5-time regeneration cycle. Thus, Ni-P catalysts demonstrated good stability as well.

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王明远,冷一欣.磷化镍的制备及其催化糠醛加氢制备环戊酮[J].精细化工,2018,35(11):0

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  • 收稿日期:2017-11-02
  • 最后修改日期:2018-03-08
  • 录用日期:2018-03-19
  • 在线发布日期: 2018-09-05
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