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Ca modified ZSM-5 for high propylene selectivity from methanol

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Abstract

The highest propylene selectivity and best catalytic stability were gained over Ca modified ZSM-5 that had little free Brønsted acid sites, which indicated that Ca interacted with Brønsted acid sites and thus participated in the catalytic reaction as supported by the MTO data of Na modified ZSM-5. A possible mechanism that involves the formation of acid-base centers by hydrolyzing Ca species in the presence of water is suggested.

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Acknowledgement

The authors thank for the financial support from the Laboratory of Applied Catalysis and Green Chemical Engineering of Institute of Coal Chemistry, Chinese Academy of Sciences.

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Authors and Affiliations

  1. Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, China

    Suhong Zhang, Bianling Zhang, Zhixian Gao & Yizhuo Han

  2. Graduate University of Chinese Academy of Sciences, Beijing, 100049, China

    Suhong Zhang & Bianling Zhang

Authors
  1. Suhong Zhang
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  2. Bianling Zhang
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  3. Zhixian Gao
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  4. Yizhuo Han
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Correspondence to Zhixian Gao.

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Zhang, S., Zhang, B., Gao, Z. et al. Ca modified ZSM-5 for high propylene selectivity from methanol. Reac Kinet Mech Cat 99, 447–453 (2010). https://doi.org/10.1007/s11144-009-0131-0

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  • DOI: https://doi.org/10.1007/s11144-009-0131-0

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