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Issue 8, 2016
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Mesoporous EU-1 zeolite as a highly active catalyst for ethylbenzene hydroisomerization

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Abstract

The hydroisomerization of ethylbenzene is an important industrial reaction to maximize the production of xylenes, and in particular, para-xylene. Zeolite EU-1 (with EUO topology) is commercially utilized in a physical mixture with a metallic phase (Pt/Al2O3). Herein, we have developed a micro-mesoporous EUO zeolite with a significant volume of intercrystalline mesoporosity to improve its catalytic performance in the industrial hydroisomerization of ethylbenzene. The use of a multivalent cationic surfactant as a capping agent was ideal to prevent uniform crystal growth and their aggregation, and to ensure the potential industrial applicability of the strategy. The corresponding mesoporosity and textural properties of nanosponge-like EUO were tuned according to the amount of the capping agent. The catalytic performance reflected the remarkable impact of a large exposed surface area (up to 55%) and a high amount of easily accessible Brønsted acid sites (up to 29%) in the EU-1 nanosponge on the catalytic yield. Our best catalyst revealed a three-fold increase in the conversion of ethylbenzene with no detrimental effects on the attained hydroisomerization yield. This approach presents a potential industrial capability in a wide range of catalytic applications as evidenced here in the hydroisomerization of ethylbenzene.

Graphical abstract: Mesoporous EU-1 zeolite as a highly active catalyst for ethylbenzene hydroisomerization

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Article information


Submitted
25 Nov 2015
Accepted
10 Feb 2016
First published
10 Feb 2016

Catal. Sci. Technol., 2016,6, 2735-2741
Article type
Paper

Mesoporous EU-1 zeolite as a highly active catalyst for ethylbenzene hydroisomerization

F. M. Mota, P. Eliášová, J. Jung and R. Ryoo, Catal. Sci. Technol., 2016, 6, 2735
DOI: 10.1039/C5CY02027A

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