Coke deposits on Pt/Al2O3 catalysts of varying dispersities |
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| Authors: | P. Marecot E. Churin J. Barbier |
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| Affiliation: | (1) Laboratoire de Catalyse en Chimie Organique, UA CNRS 350, 40, Avenue du Recteur Pineau, 86022 Poitiers Cedex;(2) Instituto de Investigaciones en Catalisis y Petroquimica, INCAPE, Santiago del Estero 2654, 3000 Santa Fe, Argentina |
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| Abstract: | Coke deposition during cyclopentane reaction was investigated on Pt/Al2O3 catalysts of varying dispersity. For all working pressures the higher the metallic accessibility, the higher the amount of coke deposited on the catalyst. Nevertheless, coke deposited on the less dispersed catalysts is more toxic for the metallic function. An increasing metal accessibility improves the graphitization of coke on the support and so, prevent the deactivation of the metal of a bifunctional catalyst.
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