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Issue 6, 1997
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Kinetic studies of the dehydration of methanol over aluminosilicate and gallosilicate offretites

Abstract

The kinetics of the dehydration of CH 3 OH by the hydrogen forms of three offretites with different contents of framework Al and Ga have been monitored by 13 C magic-angle-spinning (MAS) NMR spectroscopy. No reaction takes place at room temperature. At 150 °C methanol is dehydrated to dimethyl ether. As expected, the catalytic activity of offretite for this reaction is lower than that of zeolite ZSM-5, and it decreases with increasing framework gallium content. The rates of the dehydration reaction are 0.045, 0.863 and 1.136 a.u. −1 s −1 for Ga-, Al,Ga- and Al-offretites, respectively.

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Article type: Paper
DOI: 10.1039/A607290I
J. Chem. Soc., Faraday Trans., 1997,93, 1221-1224

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    Kinetic studies of the dehydration of methanol over aluminosilicate and gallosilicate offretites

    M. D. Alba, A. A. Romero, M. L. Occelli and J. Klinowski, J. Chem. Soc., Faraday Trans., 1997, 93, 1221
    DOI: 10.1039/A607290I

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