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Catalytic performance of silica-supported chromium oxide catalysts in ethane dehydrogenation with carbon dioxide

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Abstract

The oxidative dehydrogenation of ethane into ethylene by CO2 over a series of silica-supported chromium oxide catalysts was investigated. The results showed that the catalysts were effective for the reaction and CO2 in the feed promoted the catalytic activity. The 5%Cr/SiO2 catalyst exhibited the excellent performance with 30.7% ethane conversion and 96.5% ethylene selectivity at 700oC. ESR and UV-DRS were used to probe the active sites and the species with high valent states (Cr5+ and/or Cr6+) were found to be important for the reaction.

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Authors and Affiliations

  1. Lab of Mesoscopic Materials Science, Department of Chemistry, Nanjing University, Nanjing, 210093, China

    Xin Ge, Mingming Zhu & Jianyi Shen

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  1. Xin Ge
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  2. Mingming Zhu
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  3. Jianyi Shen
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Ge, X., Zhu, M. & Shen, J. Catalytic performance of silica-supported chromium oxide catalysts in ethane dehydrogenation with carbon dioxide. Reaction Kinetics and Catalysis Letters 77, 103–108 (2002). https://doi.org/10.1023/A:1020348021042

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  • DOI: https://doi.org/10.1023/A:1020348021042

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