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Insights into the Mechanism of Methanol-to-Olefin Conversion at Zeolites with Systematically Selected Framework Structures

Authors

  • Zhi-Min Cui,

    1. Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, The Chinese Academy of Sciences, Beijing, 100080, P.R. China, Fax: (+86) 10-6255-7908
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  • Qiang Liu,

    1. Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, The Chinese Academy of Sciences, Beijing, 100080, P.R. China, Fax: (+86) 10-6255-7908
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  • Wei-Guo Song Prof.,

    1. Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, The Chinese Academy of Sciences, Beijing, 100080, P.R. China, Fax: (+86) 10-6255-7908
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  • Li-Jun Wan Prof.

    1. Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, The Chinese Academy of Sciences, Beijing, 100080, P.R. China, Fax: (+86) 10-6255-7908
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  • The authors thank the Natural Science Foundation of China (20121301), the Ministry of Science and Technology of China (2006CB806101), and the Chinese Academy of Sciences for financial support. Z.-M.C. and Q.L. thank Professor Chun-Li Bai for valuable advice.

Abstract

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Genauer Blick: Der so genannte Kohlenwasserstoffpool-Mechanismus funktioniert bei der Umwandlung von Methanol in Olefine (MTO-Prozess) am Zeolith ZSM-22 wegen der engen Gerüstkanäle (0.57 nm) nicht. Dafür bot dieses System die Möglichkeit zu genauen mechanistischen Studien ohne Störung durch Sekundärreaktionen. Die dabei erhaltenen H/D-Austauschmuster von Toluol sprechen für einen Schälmechanismus (paring mechanism).

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