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Post-Synthesis Modification of SSZ-35 Zeolite to Enhance the Selectivity in p-Xylene Alkylation with Isopropyl Alcohol
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SYSNO ASEP 0341713 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Post-Synthesis Modification of SSZ-35 Zeolite to Enhance the Selectivity in p-Xylene Alkylation with Isopropyl Alcohol Author(s) Musilová, Zuzana (UFCH-W)
Zones, S. I. (US)
Čejka, Jiří (UFCH-W) RID, ORCID, SAISource Title Topics in Catalysis. - : Springer - ISSN 1022-5528
Roč. 53, 3-4 (2010), s. 273-282Number of pages 10 s. Language eng - English Country NL - Netherlands Keywords SSZ-35 ; surface modification ; p-xylene ; 2,5-dimethylcumene Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects 1QS400400560 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) GD203/08/H032 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000275558000018 DOI 10.1007/s11244-009-9410-2 Annotation Modification of textural and chemical properties of SSZ-35 was investigated in respect to the catalytic behavior of this zeolite in p-xylene alkylation with isopropyl alcohol. Acidic treatment of the external surface of SSZ-35 crystals resulted in a decrease in the void volume of the zeolite and in the concentration of acid sites mainly located on the external surface. This was evidenced from the FTIR spectra of adsorbed pyridine and 2,6-di-tert-butylpyridine. The modification caused a significant increase in the selectivity to 2,5-dimethylcumene while the p-xylene conversion decreased only very slightly. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2011
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