Catalysed oxidation of quinoline in model fuel and the selective extraction of quinoline-N-oxide with imidazoline-based ionic liquids

Adeniyi S. Ogunlaja*, Olalekan S. Alade

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

Synthesised vanadium-coordinated N,N-bis(o-hydroxybenzaldehyde)phenylene diamine catalyst, [VO(sal-HBPD)] and supported catalyst, p[VO(sal-HBPD)] were employed for the oxidation of quinoline. The use of [VO(sal-HBPD)] and p[VO(sal-HBPD)] for the oxidation of quinoline, (Quinoline-to-H2O2 ratio 1:7) showed oxidation selectivity as quinoline-N-oxide (100%) was recorded as the oxidation product. Quinoline-N-oxide was confirmed as the oxidation product through GC–MS. Density functional theory (DFT) revealed hydroxylperoxido-species [VOO(sal-HBPD)] (II) as the reactive oxidized oxidovanadium specie responsible for the oxidation. Ionic liquids, 1-butyl-3-methylimidazolium chloride and 1-butyl-3-methylimidazolium nitrate extracted 96% and 87% quinoline-N-oxide respectively.

Original languageEnglish
Pages (from-to)159-168
Number of pages10
JournalEgyptian Journal of Petroleum
Volume27
Issue number2
DOIs
StatePublished - Jun 2018
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2017 Egyptian Petroleum Research Institute

Keywords

  • Hydrogen peroxide (HO)
  • Ionic liquids
  • Oxidation
  • Quinoline
  • Vanadium(IV) catalyst

ASJC Scopus subject areas

  • Catalysis
  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Geochemistry and Petrology
  • Process Chemistry and Technology
  • Organic Chemistry

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