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Catalysts 2015, 5(4), 2122-2133; doi:10.3390/catal5042122

Selective Production of Aromatics from 2-Octanol on Zinc Ion-Exchanged MFI Zeolite Catalysts

1
Research and Development Initiative, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
2
Technology Development Division, Toray Fine Chemicals Co., Ltd., 2-3 Chigusakaigan, Ichihara, Chiba 299-0196, Japan
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editor: Rafael Luque
Received: 13 November 2015 / Revised: 30 November 2015 / Accepted: 30 November 2015 / Published: 10 December 2015
(This article belongs to the Special Issue Catalytic Conversion of Biomass)
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Abstract

The aromatization of 2-octanol derived from castor oil as a byproduct in the formation of sebacic acid was investigated on various zeolite catalysts. Zn ion-exchanged MFI (ZSM-5) zeolites with small silica/alumina ratios and zinc contents of 0.5 to 2.0 wt. % were determined to exhibit good and stable activity for the reaction at 623 to 823 K. The yield of aromatics was 62% at 773 K and the space velocity 350 to 1400 h−1. The temperature and contact time dependences of the product distributions indicated the reaction pathways of 2-octanol→dehydration to 2-octene→decomposition to C5 and C3 compounds→further decomposition to small alkanes and alkenes→aromatization with dehydrogenation. Alcohols with carbon numbers of 5 to 8 exhibited similar distributions of products compared to 2-octanol, while corresponding carbonyl compounds demonstrated different reactivity. View Full-Text
Keywords: 2-octanol; aromatization; MFI zeolites; zinc ion; biomass 2-octanol; aromatization; MFI zeolites; zinc ion; biomass
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Iwamoto, M.; Takezawa, R.; Morimoto, M. Selective Production of Aromatics from 2-Octanol on Zinc Ion-Exchanged MFI Zeolite Catalysts. Catalysts 2015, 5, 2122-2133.

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