| 铈对低负载Pd/Al2O3催化剂加氢丙烯腈的改性效应 |
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| 引用本文： | 肖述章,楼芝英,周国光,徐祖辉. 铈对低负载Pd/Al2O3催化剂加氢丙烯腈的改性效应[J]. 化学研究与应用, 2004, 16(1): 82-84 |
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| 作者姓名： | 肖述章 楼芝英 周国光 徐祖辉 |
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| 作者单位： | 上海师范大学化学系,上海,200234;上海师范大学化学系,上海,200234;上海师范大学化学系,上海,200234;上海师范大学化学系,上海,200234 |
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| 摘 要： | 钯基催化剂对烯烃及烯烃类衍生物有很好的加氢活性。但钯催化剂价格昂贵，单一的钯容易中毒失活，研究表明：掺入稀土氧化物能够提高钯催化剂在载体上的分散度，增大其氧化及氢化活性，提高催化剂的寿命及稳定性。但稀土助剂对双键选择性加氢影响的研究却很少有报
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| 关 键 词： | 铈 钯 丙烯腈 加氢 改性效应 |
| 文章编号： | 1004-1656(2004)01-0082-03 |
| 修稿时间： | 2003-05-13 |
Modification effect of ceria to low-loaded Pd/Al2O3 on gas phase hydrogenation of acrylonitrile |
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| XIAO Shu-zhang,LOU Zhi-ying,ZHOU Gou-guang,XU Zu-hui. Modification effect of ceria to low-loaded Pd/Al2O3 on gas phase hydrogenation of acrylonitrile[J]. Chemical Research and Application, 2004, 16(1): 82-84 |
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| Authors: | XIAO Shu-zhang LOU Zhi-ying ZHOU Gou-guang XU Zu-hui |
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| Abstract: | Low-loaded Pd(0.05 wt.%)/Al_2O_3 catalysts modified by ceria were prepared by impregnation method.Gas phase hydrogenation of acrylonitrile to propionitrile was selected as probe reaction to study the effect of the light rare earth element cerium on the cataltic activity and stability.Experimental results indicated that addition of a small mount of ceria improved the catalytic activity and stability greatly.The best content of ceria was 3 wt.%,and consecutive impregnation method was prior to co-impregnation method. |
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| Keywords: | Cerium palladium acrylonitrile hydrogenation modification |
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