| 浸渍顺序对PtSnNa/ZSM-5催化剂丙烷脱氢性能的影响 |
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| 引用本文： | 刘辉,周钰明,张一卫,盛晓莉,张泽武,周诗健.浸渍顺序对PtSnNa/ZSM-5催化剂丙烷脱氢性能的影响[J].中国炼油与石油化工,2013,15(4):54-62. |
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| 作者姓名： | 刘辉 周钰明 张一卫 盛晓莉 张泽武 周诗健 |
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| 作者单位： | 1. 江苏大学化学化工学院;2. 东南大学化学化工学院;3. 东南大学; |
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| 基金项目： | The authors are grateful to the financial supports of the National Natural Science Foundation of China （Grant No.21376051, 21106017, 21306023, and 51077013）, the Natural Science Foundation of Jiangsu （Grant No. BK20131288）, the Fund Project for Transformation of Scientific and Technological Achievements of Jiangsu Province of China （Grant No. BA2011086）, the Specialized Research Fund for the Doctoral Program of Higher Education of China （Grant No. 20100092120047）, the Key Program for the Scientific Research Guiding Fund of Basic Scientific Research Operation Expendi- ture of Southeast University （Grant No. 3207043101）, and the Instrumental Analysis Fund of Southeast University. |
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| 摘 要： | The effects of the sequence for impregnation of metal precursors on the performance of PtSnNa/ZSM-5 catalyst for propane dehydrogenation to propene were studied in this paper. Some methods such as XRD, TPDA, BET, H2-TPR, XPS, ICP, TEM and hydrogen chemisorption were used to characterize the catalysts. The structure of ZSM-5 zeolite was not destroyed by the introduction of metal components. Meanwhile the different impregnation sequence of metal precursors could affect the behavior of Sn4＋ species entering the ZSM-5 channel, and the interaction between platinum and tin species, as well as the degree for reduction of Pt and Sn components. As a result, the prepared catalysts exhibited different reac- tion activity and selectivity. Compared with the co-impregnation treated catalyst, the catalysts prepared by the sequential impregnation method showed better catalytic activity in propane dehydrogenation, especially the one prepared through impregnation with tin precursor at first. Finally, a model for the effect of impregnation sequence on the distribution of Pt and Sn species in PtSnNa/ZSM-5 catalyst was proposed.
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| 关 键 词： | 浸渍顺序 丙烷脱氢 PtSnNa/ZSM-5 丙烯 |
Effect of Impregnation Sequence on Propane Dehydrogenation Performance of PtSnNa/ZSM-5 Catalyst |
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| Liu Hui,Zhou Yuming,Zhang Yiwei,Sheng Xiaoli,Zhang Zewu,Zhou Shijiang.Effect of Impregnation Sequence on Propane Dehydrogenation Performance of PtSnNa/ZSM-5 Catalyst[J].China Petroleum Processing and Petrochemical Technology,2013,15(4):54-62. |
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| Authors: | Liu Hui Zhou Yuming Zhang Yiwei Sheng Xiaoli Zhang Zewu Zhou Shijiang |
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| Affiliation: | [1]School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189 [2]School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013 |
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| Abstract: | impregnation sequence, propane dehydrogenation, PtSnNa/ZSM-5, propene |
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| Keywords: | impregnation sequence propane dehydrogenation PtSnNa/ZSM-5 propene |
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