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Catalytic transformation of methyl benzenes over zeolite catalysts
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SYSNO ASEP 0358690 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Catalytic transformation of methyl benzenes over zeolite catalysts Author(s) Al-Khattaf, S. (SA)
Akhtar, M. N. (SA)
Odedairo, T. (SA)
Aitani, A. (SA)
Tukur, N. M. (SA)
Kubů, Martin (UFCH-W) RID
Musilová, Zuzana (UFCH-W)
Čejka, Jiří (UFCH-W) RID, ORCID, SAISource Title Applied Catalysis A - General. - : ELSEVIER SCIENCE BV - ISSN 0926-860X
Roč. 394, 1-2 (2011), s. 176-190Number of pages 15 s. Language eng - English Country NL - Netherlands Keywords ZSM-5 ; TNU-9 ; mordenite Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects GD203/08/H032 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000287996100023 DOI 10.1016/j.apcata.2010.12.031 Annotation Catalytic transformation of three methyl benzenes (toluene, m-xylene, and 1,2,4-trimethyl benzene) has been investigated over ZSM-5, TNU-9, mordenite and SSZ-33 catalysts in a novel riser simulator at different operating conditions. Catalytic experiments were carried out in the temperature range of 300-400 degrees C to understand the transformation of these alkyl benzenes over large pore (mordenite and SSZ-33) in contrast to medium-pore (ZSM-5 and TNU-9) zeolite-based catalysts. The effect of reaction conditions on the isomerization to disproportionation product ratio, distribution of trimethylbenzene (TMB) isomers, and p-xylene/o-xylene ratios are reported. The sequence of reactivity of the three alkyl benzenes depends upon the pore structure of zeolites. The zeolite structure controls primarily the diffusion of reactants and products while the acidity of these zeolites is of a secondary importance. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2012
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