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

Jérémy Faye, Atsushi Takahashi, Mickaël Capron, Pascal Fongarland, Franck Dumeignil, Tadahiro Fujitani

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)5895-5902
Number of pages8
JournalRSC Advances
Volume3
Issue number17
DOIs
Publication statusPublished - 2013 May 7
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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