| 负载Ni催化剂上1,4-丁炔二醇加氢反应的载体效应研究 |
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| 引用本文： | 刘琳丽,李海涛,王长真,武瑞芳,徐亚琳,赵永祥.负载Ni催化剂上1,4-丁炔二醇加氢反应的载体效应研究[J].分子催化,2018,32(2):99-106. |
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| 作者姓名： | 刘琳丽 李海涛 王长真 武瑞芳 徐亚琳 赵永祥 |
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| 作者单位： | 山西大学化学化工学院精细化学品教育部工程研究中心 |
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| 基金项目： | 国家自然青年科学基金（21503124）；国家自然科学基金面上项目（21673132）. |
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| 摘 要： | 制备了Ni负载量为15%的3种催化剂Ni/Al_2O_3、Ni/SiO_2、Ni/ZrO_2,考察了其在1,4-丁炔二醇加氢反应中的催化性能,结合XRD、H_2-TPR、H_2-TPD、N_2物理吸附等表征,研究了载体性质对催化剂1,4-丁炔二醇加氢性能的影响.结果表明,Ni/SiO_2催化剂上,由于Ni与SiO_2间弱的相互作用,Ni物种主要以大晶粒形式存在,产生大量弱吸附H_2物种,有利于低温下1,4-丁炔二醇加氢,在温度50℃,氢气压力1 MPa时,反应2 h可实现1,4-丁炔二醇的完全转化,1,4-丁烯二醇和1,4-丁二醇选择性分别达到68.1%与18.2%.Ni/Al_2O_3中Ni与载体间具有强相互作用,主要存在Ni-Al_2O_3界面或溢流到Al_2O_3载体表面的强吸附H_2物种,而Ni表面的弱吸附H_2物种较少,催化加氢活性明显降低.Ni/ZrO_2中由于还原过程中ZrO_2的迁移包裹作用,Ni表面低温吸附H_2物种最少,活性最低,1,4-丁炔二醇转化率仅为8.1%,主产物为1,4-丁烯二醇.
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| 关 键 词： | 1 4-丁炔二醇 加氢 Ni/Al2O3 Ni/SiO2 Ni/ZrO2 |
| 收稿时间： | 2017/12/28 0:00:00 |
| 修稿时间： | 2018/2/10 0:00:00 |
Effect of Supports on the Hydrogenation of 1, 4-Butynediol over Supported Ni Catalyst |
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| LIU Lin-li,LI Hai-tao,WANG Chang-zhen,WU Rui-fang,XU Ya-lin and ZHAO Yong-xiang.Effect of Supports on the Hydrogenation of 1, 4-Butynediol over Supported Ni Catalyst[J].Journal of Molecular Catalysis (China),2018,32(2):99-106. |
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| Authors: | LIU Lin-li LI Hai-tao WANG Chang-zhen WU Rui-fang XU Ya-lin and ZHAO Yong-xiang |
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| Institution: | Engineering Research Center of Ministry of Education for Fine Chemicals, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China,Engineering Research Center of Ministry of Education for Fine Chemicals, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China,Engineering Research Center of Ministry of Education for Fine Chemicals, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China,Engineering Research Center of Ministry of Education for Fine Chemicals, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China,Engineering Research Center of Ministry of Education for Fine Chemicals, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China and Engineering Research Center of Ministry of Education for Fine Chemicals, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China |
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| Abstract: | |
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| Keywords: | 1 4-butynediol hydrogenation Ni/Al2O3 Ni/SiO2 Ni/ZrO2 |
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