Cresol Izomerization in the Presence of Acid Catalysts
- Authors: Tarasov A.L.1, Dunaev S.F.2, Kustov L.M.1,2
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Affiliations:
- Zelinsky Institute of Organic Chemistry
- Department of Chemistry
- Issue: Vol 92, No 2 (2018)
- Pages: 262-264
- Section: Chemical Kinetics and Catalysis
- URL: https://journals.rcsi.science/0036-0244/article/view/169888
- DOI: https://doi.org/10.1134/S0036024418020231
- ID: 169888
Cite item
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.
Keywords
About the authors
A. L. Tarasov
Zelinsky Institute of Organic Chemistry
Email: lmk@ioc.ac.ru
Russian Federation, Moscow, 119991
S. F. Dunaev
Department of Chemistry
Email: lmk@ioc.ac.ru
Russian Federation, Moscow, 119991
L. M. Kustov
Zelinsky Institute of Organic Chemistry; Department of Chemistry
Author for correspondence.
Email: lmk@ioc.ac.ru
Russian Federation, Moscow, 119991; Moscow, 119991