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Comparison of catalytic performance of synthesized EU-1 zeolite with dealuminated EU-1 zeolite for m-xylene isomerization reaction

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Abstract

EU-1 zeolite was synthesized with high purity by a hydrothermal method and under optimum conditions: synthesis time 72 h, temperature 200°C, and aging time 12 h. Then, the synthesized EU-1 zeolite was modified by dealumination with nitric acid and the changes of the properties such as surface area, pore volume, and Si/Al ratio were investigated. The catalytic performance of these two catalysts was studied and compared with a commercial mordenite catalyst for meta-xylene isomerization reaction in a fixed bed reactor. The results showed that the modification of catalyst with acid increases Si/Al ratio from 25 to 50 due to the removal of a number of aluminium atoms from the framework of zeolite. Also the catalyst surface area increased from 300.237 m2 g‒1 for EU-1 to 333.639 m2 g‒1 for modified EU-1. According to results, the modified Eu-1 had higher para/ortho ratio, meta-xylene conversion, and para-xylene yield than EU-1 and commercial mordenite in the meta-xylene isomerization reaction.

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Authors and Affiliations

  1. Department of Chemistry, Faculty of Science, Shahid Bahonar University of Kerman, Kerman, Iran

    Zahra Vosoughi Rahbari & Mehrji Khosravan

  2. Department of Chemistry, Faculty of Science, University of Tehran, Tehran, Iran

    Ali Nemati Kharat

Authors
  1. Zahra Vosoughi Rahbari
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  2. Mehrji Khosravan
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  3. Ali Nemati Kharat
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Correspondence to Zahra Vosoughi Rahbari.

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The text was submitted by the authors in English.

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Rahbari, Z.V., Khosravan, M. & Kharat, A.N. Comparison of catalytic performance of synthesized EU-1 zeolite with dealuminated EU-1 zeolite for m-xylene isomerization reaction. Russ J Appl Chem 90, 1315–1319 (2017). https://doi.org/10.1134/S1070427217080201

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  • DOI: https://doi.org/10.1134/S1070427217080201

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