Počet záznamů: 1
The Effect of Zeolite Structure on the Activity and Selectivity in p-Xylene Alkylation with Isopropyl Alcohol
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SYSNO ASEP 0330279 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název The Effect of Zeolite Structure on the Activity and Selectivity in p-Xylene Alkylation with Isopropyl Alcohol Tvůrce(i) Musilová, Zuzana (UFCH-W)
Kubů, Martin (UFCH-W) RID
Burton, A. W. (US)
Zones, S. I. (US)
Voláková, Martina (UFCH-W)
Čejka, Jiří (UFCH-W) RID, ORCID, SAIZdroj.dok. Catalysis Letters - ISSN 1011-372X
Roč. 131, 3-4 (2009), s. 393-400Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova SSZ-35 ; SSZ-33 ; p-xylene ; alkylation Vědní obor RIV CF - Fyzikální chemie a teoretická chemie CEP 1QS400400560 GA AV ČR - Akademie věd GD203/08/H032 GA ČR - Grantová agentura ČR CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000269883300009 DOI 10.1007/s10562-009-0039-3 Anotace The effect of zeolite architecture and channel dimensionality on p-xylene conversion and selectivity to 1-isopropyl-2,5-dimethyl-benzene was investigated in p-xylene alkylation with isopropyl alcohol over novel zeolites SSZ-33 and SSZ-35. Catalytic behavior of these zeolites was compared with those of zeolites Beta, mordenite, ZSM-11 and ZSM-5. It was found that p-xylene conversion increases with increasing pore size and connectivity of the channel system of individual zeolites with the exception of SSZ-35, which possesses a system of one-dimensional 10-ring channels that periodically open into wide, shallow cavities circumscribed by 18-rings. SSZ-35 exhibited the highest conversion among all zeolites at the reaction temperature of 150 degrees C and also the highest selectivity to 1-isopropyl-2,5-dimethyl-benzene. Molecular modeling confirmed the dimensions of the 18-ring cages are optimal for the formation of this alkylation product. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2010
Počet záznamů: 1