The Characteristics of Direct Hydroxylation of Benzene to Phenol with Molecular Oxygen Enhanced by Pulse DC Corona at Atmospheric Pressure

Dae Won Lee, Jung Hyun Lee, Bae Hyeock Chun, Kwan Young Lee

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The direct hydroxylation of benzene using molecular oxygen by atmospheric pulse DC corona discharge was investigated. The conversion of benzene increased with the increase of oxygen content and input voltage but the selectivity of phenol decreased due to the formation of polymerized products. The reactivity was also influenced by the kind and content of background inert gas. By using argon as background gas, we could get 2.2% of phenol yield at 60°C and 1 atm with energy consumption of 50 W. The strategy of reductive oxidation, which added hydrogen to the reactant, was not favorable to the phenol formation in this reaction system. The polymerized product showed the oligomeric character and the analysis of its chemical structure with FT-IR was presented.

Original languageEnglish
Pages (from-to)519-539
Number of pages21
JournalPlasma Chemistry and Plasma Processing
Volume23
Issue number3
DOIs
Publication statusPublished - 2003 Sep

Keywords

  • Atmospheric discharge
  • Direct phenol synthesis
  • Hydroxylation of benzene
  • Metastable atom
  • Non-thermal plasma
  • Penning activation
  • Pulse DC corona
  • Reductive oxidation

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Condensed Matter Physics
  • Surfaces, Coatings and Films

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