In situ FTIR study of n-butane selective oxidation to maleic anhydride on V-P-O catalysts

Robert W. Wenig, G. L. Schrader

Research output: Contribution to journalArticle

25 Scopus citations

Abstract

The selective oxidation of n-butane to maleic anhydride on vanadium-phosphorus-oxygen (V-P-O) catalysts having P to V ratios of 0.9, 1.0, and 1.1 was studied by transmission infrared spectroscopy. Catalysts were exposed to mixtures of 1.5% n-butane in air at temperatures from 100 to 500°C. Adsorbed n-butane, maleic anhydride, and carbon oxide species were observed on the catalyst surfaces. In addition, adsorbed maleic acid and highly reactive olefinic species could be detected. The nature of the adsorbed species present on the catalyst surface was dependent on the catalyst phosphorus loading, the reaction temperature, and the time of exposure under reaction conditions.

Original languageEnglish (US)
Pages (from-to)6480-6488
Number of pages9
JournalJournal of physical chemistry
Volume90
Issue number24
DOIs
StatePublished - 1986

ASJC Scopus subject areas

  • Engineering(all)
  • Physical and Theoretical Chemistry

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