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Structure sensitivity and coke formation on Pt/Al2O3 catalysts

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Abstract

The initial rate of carbon formation during cyclopentane reaction has been studied on different Pt/Al2O3 catalysts of varying metal dispersity. It has been shown that coke deposition on the metal is a structure sensitive reaction which is preferably produced on large metallic particles. On the other hand, coke deposition on the whole catalyst is relevant to cyclopentadiene formation and is a structure insensitive reaction since the initial rate of coke deposition on the whole catalyst is proportional to the metallic surface area.

Abstract

Исследована начальная скорость образования угля в ходе реакции циклопентана на катализаторах Pt/Al2O3 с различной дисперсией металла. Показано, что высаждение кокса на металле является реакцией, чувствительной к структуре и протекающей предпочтительно на больших металлических частицах. С другой стороны, отложение углерода на всем катализаторе влияет на образование циклопентадиена и тем самым является реакцией, нечувствительной к структуре, т.к. начальная скорость отложения нагара на всем катализаторе прорциональна поверхности металла.

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Authors and Affiliations

  1. Laboratoire Associé au CNRS 350, Faculté des Sciences, 40, Avenue du Recteur Pineau, 86022, Poitiers, France

    J. Barbier, G. Corro, P. Marecot & J. P. Bournonville

  2. Institut Francais du Pétrole, 1-4 Avenue Bois Préau, 92506, Rueil Malmaison, France

    J. P. Franck

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  1. J. Barbier
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  2. G. Corro
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  3. P. Marecot
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  4. J. P. Bournonville
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  5. J. P. Franck
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Barbier, J., Corro, G., Marecot, P. et al. Structure sensitivity and coke formation on Pt/Al2O3 catalysts. React Kinet Catal Lett 28, 245–250 (1985). https://doi.org/10.1007/BF02062948

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  • DOI: https://doi.org/10.1007/BF02062948

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