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Cresol Izomerization in the Presence of Acid Catalysts

  • Chemical Kinetics and Catalysis
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Abstract

It is shown for toluene oxidation with nitrous oxide that modifying HZSM-5 zeolite with zinc oxide nanoparticles considerably improves the selectivity and yield of cresols. It is found that a 2% ZnO/HZSM-5 composite catalyst also exhibits enhanced and stable activity at high temperatures. For the o-cresol isomerization reaction, this modification of HZSM-5 zeolite greatly reduces the contribution from disproportionation and cracking reactions proceeding with formation of phenol, C6–C9 aromatic hydrocarbons, and xylenols. The regularities of their formation in the presence of the studied catalysts are determined using the results from thermodynamic calculations for the equilibrium concentrations of cresol isomers.

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Authors and Affiliations

  1. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, 119991, Russia

    A. L. Tarasov & L. M. Kustov

  2. Department of Chemistry, Moscow State University, Moscow, 119991, Russia

    S. F. Dunaev & L. M. Kustov

Authors
  1. A. L. Tarasov
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  2. S. F. Dunaev
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  3. L. M. Kustov
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Correspondence to L. M. Kustov.

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Tarasov, A.L., Dunaev, S.F. & Kustov, L.M. Cresol Izomerization in the Presence of Acid Catalysts. Russ. J. Phys. Chem. 92, 262–264 (2018). https://doi.org/10.1134/S0036024418020231

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  • DOI: https://doi.org/10.1134/S0036024418020231

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