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Investigation of n-hexane dehydrocyclization over supported Pt catalyst modified by adsorbed Pd

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Abstract

A γ-Al2O3 supported Pd−Pt bimetallic catalyst prepared by electrochemical metal adsorption has been tested in n-hexane dehydrocyclization. The Pd−Pt/Al2O3 catalyst, after calcination in oxygen followed by hydrogen treatment, showed higher activities and better selectivities for benzene and iso-hexane formation. The Pd−Pt/Al2O3 catalyst appeared to be less sensitive to the changes in the temperature of hydrogen treatment than the base Pt/Al2O3 catalyst.

Abstract

Биметаллический катализатор Re−Pt, нанесенный на γ-Al2O3, был приготовлен электрохнмической адсорбцией. С помощью импульного метода было нсследовано его поведение в реакции дегидроциклизации н-гексана. Активность катализатора, Re−Pt/Al2O3, обработанного только в водороде, была низкой, но значитедьно повышается, применяя ступень обжига перед обработкой водородом. Модифицированный катализаиор обладает более высокой активностью и повышенной селективностью к бензолу и изогексанам, чем основной катализатор Pt/Al2O3.

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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, M. Hegedűs, S. Szabó & F. Nagy

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  1. J. Margitfalvi
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  2. M. Hegedűs
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  3. S. Szabó
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  4. F. Nagy
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Margitfalvi, J., Hegedűs, M., Szabó, S. et al. Investigation of n-hexane dehydrocyclization over supported Pt catalyst modified by adsorbed Pd. React Kinet Catal Lett 18, 89–93 (1982). https://doi.org/10.1007/BF02065143

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  • DOI: https://doi.org/10.1007/BF02065143

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