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Issue 17, 2013
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Al-modified mesoporous silica for efficient conversion of methanol to dimethyl ether

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Abstract

The aim of this work was to design efficient mesoporous heterogeneous catalysts for the reaction of conversion of methanol to dimethyl ether (DME). Mesostructured silica and aluminosilicate solids were synthesized using an original synthesis procedure enabling the elaboration of structurally homogeneous solids at atmospheric pressure and using a food grade templating agent. The prepared solids consisted of mesoporous silica and aluminosilicates with aluminium contents of 0.76, 1.11 and 1.60 wt%. These solids were characterized by XRD, N2-physisorption and TEM. Their efficiency in the catalytic reaction of conversion of methanol to DME was subsequently correlated with their structural and acidic properties. The sample exhibiting a pore diameter of 2.2 nm for a Si/Al ratio of 27 showed remarkable performances with a methanol conversion as high as 80% at 598 K (7.5 vol% MeOH; 50 mg of catalyst; GHSV = 26,000 cm3 h−1 g−1) and a total selectivity to DME.

Graphical abstract: Al-modified mesoporous silica for efficient conversion of methanol to dimethyl ether

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Publication details

The article was received on 01 Nov 2012, accepted on 07 Feb 2013 and first published on 05 Mar 2013


Article type: Paper
DOI: 10.1039/C3RA22734K
Citation: RSC Adv., 2013,3, 5895-5902
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    Al-modified mesoporous silica for efficient conversion of methanol to dimethyl ether

    J. Faye, A. Takahashi, M. Capron, P. Fongarland, F. Dumeignil and T. Fujitani, RSC Adv., 2013, 3, 5895
    DOI: 10.1039/C3RA22734K

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