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Shape-Selective Alkyoation of Isopropylnaphthalene on MCM-22 Zeolite

Myung-Wan Kim Jong-Ho Kim Yoshihiro Sugi¹ Gon Seo^†

Department of Chemical Technology & The Research Institute for Catalysis, Chonnam National University, Kwangju 500-757, Korea ¹Department of Chemistry, Faculty of Engineering, Gifu University, Gifu 501-1193, Japan

gseo@chonnam.chonnam.ac.kr

Korean Journal of Chemical Engineering, July 2000, 17(4), 480-483(4), 10.1007/BF02706865

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Abstract

An MCM-22 zeolite with an Si/Al ratio 13 was found to exhibit higher selectivity to β,β-diisopropylnaphthalene in the alkylation of isopropylnaphthalene with isopropylalcohol, as compared with other zeolites such as mordenite, Y and beta having similar Si/Al ratios. This high selectivity is ascribed to the specific pore shape of MCM-22 zeolite. The gradual increase in the selectivity with reaction time is due to its pore modification by coke deposit.

Keywords

MCM-22 Zeolite Shape-Selective Alkylation Isopropylnaphthalene β β-Diisopropylnaphthalene Specific Pore Shape

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