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Effect of Sodium Addition to PtSn/AlSBA-15 on the Catalytic Properties in Propane Dehydrogenation

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Abstract

The effect of Na addition to PtSn/AlSBA-15 on the catalytic properties in propane dehydrogenation was studied. The catalysts were characterized by XRF, BET, HR-TEM, NH3-TPD, TPO and TPR. Results showed that the presence of sodium could not only modify the acid function of the catalysts but also the structure of metallic phase, thus reduce the amount of coke deposition. Among the catalysts investigated, PtSnNa (1.0%)/AlSBA-15 had the best catalytic performance in terms of propane conversion and stability. The high catalytic performance may be owing to the strong interaction between metal and support.

Graphical Abstract

The effect of different amount of sodium added on the acid sites on the surface of the catalyst, pore structure and catalytic performance for PtSn/AlSBA-15 catalyst was studied in the paper. After the addition of Na, the propane conversion increased obviously and the stability of catalysts also improved. The optimum amount of Na was 1.0%.

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Acknowledgments

The authors are grateful to Production and Research Prospective Joint Research Project (BY2009153) and Science and Technology Support Program (BE2008129) of Jiangsu Province of China and the National Nature Science Foundation of China (50873026) for financial supports.

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Authors and Affiliations

  1. School of Chemistry and Chemical Engineering, Southeast University, Jiang Ning Region, Nanjing, 211189, People’s Republic of China

    Yongzheng Duan, Yuming Zhou, Yiwei Zhang, Xiaoli Sheng & Mengwei Xue

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  1. Yongzheng Duan
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  2. Yuming Zhou
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  3. Yiwei Zhang
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  4. Xiaoli Sheng
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  5. Mengwei Xue
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Correspondence to Yuming Zhou.

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Duan, Y., Zhou, Y., Zhang, Y. et al. Effect of Sodium Addition to PtSn/AlSBA-15 on the Catalytic Properties in Propane Dehydrogenation. Catal Lett 141, 120–127 (2011). https://doi.org/10.1007/s10562-010-0445-6

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  • DOI: https://doi.org/10.1007/s10562-010-0445-6

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