文章摘要
陶庭雨,傅雯倩.多孔ZSM-5沸石负载Ni2P催化剂对苯乙炔的选择性加氢性能[J].精细化工,2019,36(5):
多孔ZSM-5沸石负载Ni2P催化剂对苯乙炔的选择性加氢性能
Mesoporous Zeolite ZSM-5 Supported Ni2P Catalyst for the Selective
投稿时间:2018-09-14  修订日期:2018-11-30
DOI:
中文关键词: 多孔ZSM-5沸石  Ni2P催化剂  苯乙炔加氢
英文关键词: mesoporous ZSM-5 zeolite  Ni2P catalyst  phenylacetylene hydrogenation
基金项目:国家自然科学基金石油化工联合基金培育项目(U1662139)资助
作者单位E-mail
陶庭雨 常州大学 taotingyu513@foxmail.com 
傅雯倩 常州大学 fuwenqian@cczu.edu.cn 
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中文摘要:
      以酸性多孔ZSM-5沸石(HZSM-5-M)和高比表面积的氧化硅(SiO2)为载体,采用等体积浸渍法制备了负载Ni2P催化剂(Ni2P/HZSM-5-M和Ni2P/SiO2),对比研究了它们在苯乙炔选择性加氢反应中的催化性能。采用XRD、N2吸附-脱附、NH3-TPD、H2-TPR、SEM和TEM对载体及其负载的Ni2P催化剂进行了表征。催化剂活性结果为:当反应时间为2 h,苯乙炔在Ni2P/HZSM-5-M催化剂的转化率为98.5%,而在Ni2P/SiO2催化剂上仅为45.6%。说明Ni2P/HZSM-5-M催化剂的加氢活性显著高于Ni2P/SiO2催化剂。这是因为,与Ni2P/SiO2催化剂相比,在Ni2P/HZSM-5-M催化剂上形成了小颗粒的Ni2P活性相。同时,Ni2P/HZSM-5-M催化剂的活性具有良好的重复性。
英文摘要:
      Acidic mesoporous ZSM-5 zeolite (HZSM-5-M) and silica (SiO2) supported Ni2P catalysts (Ni2P/HZSM-5-M and Ni2P/SiO2) were prepared by incipient wetness impregnation method, and their catalytic performance was investigated in the selective hydrogenation of phenylacetylene. The supports and catalysts were characterized by XRD, N2-adsorption, NH3-TPD, H2-TPR, SEM and TEM techniques. The activity results show that phenylacetylene conversion on Ni2P/HZSM-5-M catalyst is 98.5%, while that on Ni2P/SiO2 catalyst is 45.6% at the reaction time of 2 h, indicating that the hydrogenation activity of Ni2P/HZSM-5-M catalyst is much higher than that of Ni2P/SiO2 catalyst. This feature could be due to the highly dispersed Ni2P phase with small particle size on the catalyst. In addition, the Ni2P/HZSM-5-M catalyst showed good repeatability.Ni2P/HZSM-5-M catalyst, as compare to Ni2P/SiO2 catalyst. The Ni2P phase with small particle size shows high hydrogenation activity, nevertheless, the influence of the particle size of the Ni2P phases on the styrene selectivity is not significant.
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