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Enhancement of the shape-selectivity in alkylation of methylnaphthalene over the ZSM-5 modified by chemical vapor deposition of SI(OCH3)4

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Abstract

Shape-selectivity of alkylation of 2-methylnaphthalene over the ZSM-5 zeolite has been improved by a method of chemical vapor deposition of silicon methoxide. The deposition of silica on ZSM-5 increased the β-selectivity, which was defined as the sum of distributions of 2,3-, 2,6-, and 2,7-dimethylnaphthalenes; however, it did not increase selectively the product distribution of 2,6-dimethylnaphthalene. From the characterization of two kinds of the silica-deposited ZSM-5, it was found that the β-selectivity was enhanced by the inactivation of the external surface as well as by the control of pore-opening size.

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Authors and Affiliations

  1. Department of Materials Science, Faculty of Engineering, Tottori University, Tottori 680, Koyama-cho, Japan

    Miki Niwa

  2. Department of Applied Chemistry, School of Engineering, Nagoya University, Nagoya 464-01, Furo-cho, Chikusa-ku, Japan

    Masato Endo & Yuichi Murakami

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  1. Miki Niwa
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  2. Masato Endo
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  3. Yuichi Murakami
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Niwa, M., Endo, M. & Murakami, Y. Enhancement of the shape-selectivity in alkylation of methylnaphthalene over the ZSM-5 modified by chemical vapor deposition of SI(OCH3)4 . Res. Chem. Intermed. 21, 127–135 (1995). https://doi.org/10.1163/156856795X00125

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  • DOI: https://doi.org/10.1163/156856795X00125

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