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Isomerization-disproportionation of m-xylene over dealuminated mordenites

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Abstract

The isomerization-disproportionation of m-xylene has been investigated over a series of dealuminated mordenites characterized by Si/Al ratios varying from 5 to 15. Catalytic activity increases with the Si/Al ratio and correspondingly also the products of disproportionation. This behavior is interpreted in terms of increasing acid strength leading to a higher activity and selectivity to disproportionation through a common mechanism which involves both a parallel and a consecutive route.

Abstract

Изомеризация-диспропорционирование м-ксилола было исс ледовано на серии деалюминированных морденитов, характеризуемых отноше нием Si/Al, изменяющимся от 5 до 15. Каталитическая активность увелич ивается с увеличением отношения Si/Al, а соответственно зтому и продукты диспропорционирования. Зто поведение обьясняется на основе увеличив ающейся кислотной силы, приводящей к высокой активности и селек тивности к диспропорционированию, через общий механизм, который включает в себя как параллельные, так и последовательные ступени.

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Authors and Affiliations

  1. Instituto di Chimica Industriale, Facolta di Scienze, Universita di Messina, 98100, Messina, Italy

    P. Vitarelli & S. Cavallaro

  2. Istituto CNR di Ricerche sui Metodi e Processi Chimici per la Trasformazione e l'Accumulo dell'Energia, Via Salita S. Lucia sopra Contesse 39, 98013, Pistunina, Messina, Italy

    R. Ottaná, L. M. Saija & N. Giordano

Authors
  1. P. Vitarelli
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  2. S. Cavallaro
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  3. R. Ottaná
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  4. L. M. Saija
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  5. N. Giordano
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Vitarelli, P., Cavallaro, S., Ottaná, R. et al. Isomerization-disproportionation of m-xylene over dealuminated mordenites. React Kinet Catal Lett 25, 79–82 (1984). https://doi.org/10.1007/BF02076544

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  • DOI: https://doi.org/10.1007/BF02076544

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