| 助剂对Pd/树脂醚化催化剂催化性能的影响 Ⅱ.Sn助剂的影响 |
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| 引用本文： | 黄星亮,殷慧龄.助剂对Pd/树脂醚化催化剂催化性能的影响 Ⅱ.Sn助剂的影响[J].石油化工,1998(11). |
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| 作者姓名： | 黄星亮 殷慧龄 |
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| 作者单位： | 石油大学（北京）石油化工学部 |
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| 摘 要： | 研究了Ｐｄ－Ｓｎ／树脂催化剂中Ｓｎ／Ｐｄ质量比和Ｓｎ助剂负载方法对催化剂催化性能的影响，并采用Ｘ光电子能谱（ＸＰＳ）、Ｘ－射线荧光光谱分析（ＸＦＳＡ）以及ＢＥＴ比表面分析等手段对Ｓｎ助剂的作用进行了探讨。在Ｐｄ／树脂催化剂中Ｓｎ助剂的引入可提高催化剂的活性，然而其质量分数过高会影响活性金属的负载量而降低催化剂的二烯烃加氢和双键异构活性。Ｓｎ助剂的负载顺序也明显地影响Ｓｎ对催化剂的作用。采用先负载Ｓｎ助剂后负载Ｐｄ的方式，对提高催化剂催化活性有利。ＸＰＳ、ＸＦＳＡ和ＢＥＴ研究表明，Ｓｎ助剂能改变Ｐｄ的电子状态，降低Ｐｄ３ｄ５／２结合能，有利于加氢和异构活性的提高。另一方面Ｓｎ质量分数的增加和负载顺序的不同，影响催化剂表面Ｐｄ和Ｓｎ的相对含量，导致催化剂催化性能的改变
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| 关 键 词： | Pd／树脂 催化剂 醚化 Sn助剂 选择性加氢 |
Effect of Promoters on the Catalytic Properties of Pd/Cation Exchange Resin Etherification Catalysts Ⅱ.Effect of Sn Promoters |
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| Huang,Xingliang,and,Yin,Huiling.Effect of Promoters on the Catalytic Properties of Pd/Cation Exchange Resin Etherification Catalysts Ⅱ.Effect of Sn Promoters[J].Petrochemical Technology,1998(11). |
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| Authors: | Huang Xingliang and Yin Huiling |
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| Abstract: | The relationship between the amount of Sn promoter、preparation method and activities of Pd Sn/resin catalysts has been studied.The action of Sn promoter in the catalysts were investigated by XPS、BET and XFSA.The results showed that the best Pd/Sn ratio was related with the method of supporting Pd and Sn.The results of XFSA and XPS showed that the amount of Pd on the Pd Sn/resin catalysts decreased with increasing amount of Sn.There was a strong interaction between Pd and Sn on these catalysts.Sn promoter can decrease the Pd 3 d 5/2 bonding energy,which is advantageous to the activities of Pd Sn/cation exchange resin catalysts. |
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| Keywords: | Pd/resin catalysts etherification Sn promoter selective hydrogenation |
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