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Efficient Synthesis of Dimethyl Ether over HZSM-5 Supported on Medium-Surface-Area β-SiC Foam

Authors

  • Svetlana Ivanova Dr.,

    1. Laboratoire des Matériaux Surfaces et Procédés pour la Catalyse, UMR 7515 du CNRS, Université Louis Pasteur, European Laboratory of Catalysis and Surface Sciences (ELCASS), 25 rue Becquerel, 67087 Strasbourg (France), Fax: (+33) 390-242-674
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  • Estelle Vanhaecke Dr.,

    1. Laboratoire des Matériaux Surfaces et Procédés pour la Catalyse, UMR 7515 du CNRS, Université Louis Pasteur, European Laboratory of Catalysis and Surface Sciences (ELCASS), 25 rue Becquerel, 67087 Strasbourg (France), Fax: (+33) 390-242-674
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  • Benoit Louis Dr.,

    1. Laboratoire des Matériaux Surfaces et Procédés pour la Catalyse, UMR 7515 du CNRS, Université Louis Pasteur, European Laboratory of Catalysis and Surface Sciences (ELCASS), 25 rue Becquerel, 67087 Strasbourg (France), Fax: (+33) 390-242-674
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  • Suzanne Libs,

    1. Laboratoire des Matériaux Surfaces et Procédés pour la Catalyse, UMR 7515 du CNRS, Université Louis Pasteur, European Laboratory of Catalysis and Surface Sciences (ELCASS), 25 rue Becquerel, 67087 Strasbourg (France), Fax: (+33) 390-242-674
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  • Marc-Jacques Ledoux Dr.,

    1. Laboratoire des Matériaux Surfaces et Procédés pour la Catalyse, UMR 7515 du CNRS, Université Louis Pasteur, European Laboratory of Catalysis and Surface Sciences (ELCASS), 25 rue Becquerel, 67087 Strasbourg (France), Fax: (+33) 390-242-674
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  • Sévérine Rigolet Dr.,

    1. Laboratoire de Matériaux à Porosité Contrôlée, UMR CNRS 7016 Ecole Nationale Supérieure de Chimie de Mulhouse, 3 rue Alfred Werner, 68093 Mulhouse (France)
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  • Claire Marichal Prof.,

    1. Laboratoire de Matériaux à Porosité Contrôlée, UMR CNRS 7016 Ecole Nationale Supérieure de Chimie de Mulhouse, 3 rue Alfred Werner, 68093 Mulhouse (France)
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  • Charlotte Pham Dr.,

    1. SiCat Technical Center, 1 rue du Brotsch, 67700 Otterswiller (France)
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  • Francis Luck Dr.,

    1. Direction Scientifique Total S.A. 2 place de la Coupole, La defence-6 92068 Paris (France)
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  • Cuong Pham-Huu Dr.

    1. Laboratoire des Matériaux Surfaces et Procédés pour la Catalyse, UMR 7515 du CNRS, Université Louis Pasteur, European Laboratory of Catalysis and Surface Sciences (ELCASS), 25 rue Becquerel, 67087 Strasbourg (France), Fax: (+33) 390-242-674
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Abstract

In this study, we aimed to produce a highly selective and stable catalyst for the production of dimethyl ether by methanol dehydration. The activities were compared of different active phases of the employed system, zeolite HZSM-5 or γ-alumina, supported on silicon carbide as foam, and it was found that the supported zeolite catalysts are more active than and as selective as the alumina-based catalysts. The as-prepared zeolite/SiC composites reveal good stability in long-term tests in the presence or absence of steam. The high stability is attributed to the presence of highly dispersed micrometer-sized zeolite particles, which make the active sites more accessible to the reactants and promote the quick transfer of the desired product, dimethyl ether, out of the catalyst bed, minimizing deactivation of the catalyst.

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