Effect of vanadia on the performance of NiO in vapor-phase oxidative decarboxylation of benzoic acid to phenol

Seiichi Ohyama*, Kristoffer E. Popp, Mayfair C. Kung, Harold H. Kung

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

A series of vanadia-loaded NiO catalysts was tested for the vapor-phase oxidative decarboxylation of benzoic acid to phenol at 673 K. NiO catalyzed the selective formation of phenol at low conversions of benzoic acid. However, the phenol yield declined with time on stream. Introduction of vanadium oxide to the catalyst resulted in pronounced improvements in the phenol yield and its stability, whereas V 2O 5 alone predominantly catalyzed the combustion of benzoic acid to carbon oxides. Under identical testing conditions, the highest selectivity to phenol (46.9%) was obtained with a 0.49 wt% V 2O 5 sample, while the highest phenol yield of 7.6% was obtained on a 3.7 wt% V 2O 5 sample.

Original languageEnglish (US)
Pages (from-to)357-362
Number of pages6
JournalCatalysis Communications
Volume3
Issue number8
DOIs
StatePublished - Aug 2002

Funding

Support of this work by the Argonne National Laboratory, Department of Energy is gratefully acknowledged.

Keywords

  • Benzoic acid
  • Decarboxylation
  • Hydroxylation
  • NiO
  • Phenol
  • Vanadium additive

ASJC Scopus subject areas

  • Catalysis
  • General Chemistry
  • Process Chemistry and Technology

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