Transformations of ethyl- or vinyloxirane over mesoporous aluminosilicates - A comparative study

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Abstract

The transformations of ethyl- or vinyloxirane were studied on AlMCM-41 and AlMCM-48 at 393 K in a pulse reactor. For ethyloxirane the main reaction over the fresh catalysts was the loss of oxygen resulting in the formation of 1-butene. This transformation route was predominant over AlMCM-41 accompanied by some isomerisation leading to butyraldehyde. Over AlMCM-48, however, this product became significant. On overloading the catalysts with the reactant cyclic dimerisation occurred and this reaction was found to be predominant. The reaction pattern of vinyloxirane differed considerably from that of the saturated analog. Deoxygenation was negligible and isomerisation turned to be the main transformation pathway initially. A new and important reaction, ring enlargement appeared as well. On subsequent pulses its proportion superseeded that of isomerisation.

Original languageEnglish
Pages (from-to)1303-1310
Number of pages8
JournalStudies in Surface Science and Catalysis
Volume158 B
Publication statusPublished - Jan 1 2005

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ASJC Scopus subject areas

  • Catalysis
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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