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Comparison of the catalytic properties of Pt/Al2O3 and bimetallic Pd−Pt/Al2O3 catalysts in n-hexane dehydrocyclization in a continuous-flow reactor

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Abstract

Activity and selectivity data obtained in n-hexane dehydrocyclization over Pt/Al2O3 and Pd−Pt/Al2O3 catalysts exposed to different thermal treatment processes are compared. The ageing phenomena were most pronounced on catalysts treated in hydrogen at higher temperatures. The Pd−Pt/Al2O3 catalyst possessed lower cracking activity with a parallel increase of the selectivity for benzene and iso-hexanes.

Abstract

Сравниваются данные активности и селективности, полученные при исследовании реакции дигидроцклизации н-гексана на катализаторах Pt/Al2O3 и Pd−Pt/Al2O3, подвергнутых различной термической обработке. Явления старения наиболее явно проявлялись на катализаторах, обработанных водородом при высокой температуре. Катализатор Pd−Pt/Al2O3 обладает пониженной активностью крекинга с параллельным повьпцением селективности к бензолу и изогексанам.

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References

  1. J. Margitfalvi, M. Hegedűs, S. Szabó, F. Nagy: React. Kinet. Catal. Lett.,18, 89 (1981).

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Authors and Affiliations

  1. Central Research Institute for Chemistry of the Hungarian Academy of Sciences, Pusztaszeri út 59-67, H-1025, Budapest

    J. Margitfalvi, S. Gőbölös, E. Kwaysser, S. Szabó & F. Nagy

  2. Department of Applied Chemistry, Technical University, Egry József u. 20-22, 1111, Budapest, Hungary

    L. Koltai

Authors
  1. J. Margitfalvi
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  2. S. Gőbölös
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  3. E. Kwaysser
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  4. S. Szabó
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  5. F. Nagy
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  6. L. Koltai
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Margitfalvi, J., Gőbölös, S., Kwaysser, E. et al. Comparison of the catalytic properties of Pt/Al2O3 and bimetallic Pd−Pt/Al2O3 catalysts in n-hexane dehydrocyclization in a continuous-flow reactor. React Kinet Catal Lett 18, 133–137 (1982). https://doi.org/10.1007/BF02065151

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  • DOI: https://doi.org/10.1007/BF02065151

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