A comparison of catalyst deactivation of vanadia catalysts used for alkane dehydrogenation

S. David Jackson, Sreekala Rugmini, Peter C. Stair, Zili Wu

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

A series of vanadia/θ-alumina catalysts have been prepared, characterised and tested for n-butane dehydrogenation. We examined two catalysts having vanadium loadings of 1 and 3.5% V in more detail. The extent of carbon laydown is extremely sensitive to the nature of vanadia surface species. Studies show that the isolated VOx species are much more effective at catalysing carbon deposition during dehydrogenation than the polyvanadate species. It is also clear that polyvanadate species are more effective at dehydrogenation compared to the isolated vanadia species.

Original languageEnglish
Pages (from-to)127-132
Number of pages6
JournalChemical Engineering Journal
Volume120
Issue number1-2
DOIs
Publication statusPublished - Jul 1 2006

Keywords

  • Deactivation
  • Nature of carbon species
  • UV-vis. Raman spectra
  • Vanadia catalysts
  • n-Butane dehydrogenation

ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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