化工进展 ›› 2018, Vol. 37 ›› Issue (03): 1008-1013.DOI: 10.16085/j.issn.1000-6613.2017-0819

• 工业催化 • 上一篇    下一篇

Ni2P/ZrO2催化剂对苯酚的加氢性能

李晨芮1,2, 罗昊1,2, 孙越伟1,2, 张瑞芹1,2, 刘永刚1,2   

  1. 1 郑州大学化学与分子工程学院, 河南 郑州 450001;
    2 郑州大学环境科学研究院, 河南 郑州 450001
  • 收稿日期:2017-05-05 修回日期:2017-11-10 出版日期:2018-03-05 发布日期:2018-03-05
  • 通讯作者: 刘永刚,讲师,研究方向为环境催化。
  • 作者简介:李晨芮(1993-),女,硕士研究生。
  • 基金资助:
    河南省国际合作项目(172102410041)。

Hydrogenation of phenol over Ni2P/ZrO2 catalysts

LI Chenrui1,2, LUO Hao1,2, SUN Yuewei1,2, ZHANG Ruiqin1,2, LIU Yonggang1,2   

  1. 1 Chemistry and Molecular Engineering College, Zhengzhou University, Zhengzhou 450001, Henan, China;
    2 Environment Science Research Institute, Zhengzhou University, Zhengzhou 450001, Henan, China
  • Received:2017-05-05 Revised:2017-11-10 Online:2018-03-05 Published:2018-03-05

摘要: 采用浸渍法及热分解法合成了不同负载量的Ni2P/ZrO2催化剂,通过XRD、TEM和氮气吸脱附等多种手段表征其物理化学性质,并通过对苯酚的加氢处理来研究载体对Ni2P活性的影响。结果表明:Ni2P分散负载在ZrO2的表面,ZrO2载体降低了Ni2P的粒径,有效防止了Ni2P的聚集,显著提高了Ni2P对苯酚加氢脱氧的活性。在相同催化条件下,10%-Ni2P/ZrO2呈现出最佳催化活性。以10%-Ni2P/ZrO2为代表考察催化反应最优条件,在反应温度300℃、初始氢气压5MPa下反应2h,苯酚转化率达到90.8%,环己烷选择性达到91.7%。

关键词: 生物能源, 催化, 加氢, 苯酚, 磷化镍, 氧化锆

Abstract: Ni2P/ZrO2 catalysts with different loading of nickel were prepared by impregnation and thermal decomposition method and characterized by a variety of techniques such as XRD,TEM and N2 adsorption-desorption to study their physicochemical properties. The catalytic performance has been investigated by hydrotreating of phenol. Compared with unsupported Ni2P,Ni2P nanoparticles dispersed on the ZrO2 surface have much smaller particle size. ZrO2 can effectively reduce the particle size and prevent the aggregation of Ni2P,which significantly improved the catalytic performance. The catalyst with 10% nickel loading (10%-Ni2P/ZrO2) exhibited the best activity. The conversion of phenol and the selectivity of cyclohexane reached 90.8% and 91.7%,respectively under reaction temperature of 300℃,initial hydrogen pressure of 5MPa and reaction time of 2 hours.

Key words: biofuel, catalysis, hydrogenation, phenol, nickel phosphide, zirconium oxide (ZrO2)

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