Cresol Izomerization in the Presence of Acid Catalysts


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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.

作者简介

A. Tarasov

Zelinsky Institute of Organic Chemistry

Email: lmk@ioc.ac.ru
俄罗斯联邦, Moscow, 119991

S. Dunaev

Department of Chemistry

Email: lmk@ioc.ac.ru
俄罗斯联邦, Moscow, 119991

L. Kustov

Zelinsky Institute of Organic Chemistry; Department of Chemistry

编辑信件的主要联系方式.
Email: lmk@ioc.ac.ru
俄罗斯联邦, Moscow, 119991; Moscow, 119991

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