Use of a rotating disc reactor to investigate the heterogeneously catalysed oxidation of cinnamyl alcohol in toluene and ionic liquids

Christopher Hardacre, E.A. Mullan, David Rooney, Jillian Thompson

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)

Abstract

To evaluate the effect of mass transfer limitations in the three-phase oxidation of cinnamyl alcohol carried out in toluene and an ionic liquid (1-butyl-3-methyl-imidazolium bis(trifluoromethylsulphonyl)imide), studies have been performed in a rotating disc reactor and compared with those carried out in a stirred tank reactor where mass transfer effects are considered negligible. High catalyst efficiencies are found in the stirred tank reactor with the use of both ionic liquid and toluene, although there is a decrease in rate for the ionic liquid reactions. In contrast, internal pore diffusion limits the reaction in both solvents in the rotating disc reactor. This mass transfer resistance reduces the problem of overoxidation of the metal surface when the reaction is carried out in toluene, leading to significantly higher rates of reaction than expected, although at the cost of decreased selectivity.
Original languageEnglish
Pages (from-to)355-365
Number of pages11
JournalJournal of Catalysis
Volume232(2)
Issue number2
DOIs
Publication statusPublished - 10 Jun 2005

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology

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