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Topics in Catalysis

, Volume 33, Issue 1–4, pp 77–86 | Cite as

Role of ceria-supported noble metal catalysts (Ru, Pd, Pt) in wet air oxidation of nitrogen and oxygen containing compounds

  • J. BarbierJr
  • L. Oliviero
  • B. Renard
  • D. Duprez
Article

Abstract

Catalytic wet air oxidation (CWAO) of aniline, phenol, carboxylic acids and ammonia was carried out in a batch reactor over noble metals (Ru, Pd, Pt) supported on ceria. Ruthenium is very active for the conversion of a wide range of organic compounds and selective into carbon dioxide. The ability of ceria to transfer oxygen is essential for good performances in CWAO. However, Ru/CeO2 is not selective for ammonia oxidation into N2. Addition of small amount of Pd enhances both activity and selectivity of Ru in this reaction. Finally, oxidation of nitrogenous organic compounds requires moderate temperature and oxygen pressure and needs to adjust the oxidizing capacity of the catalyst.

Keywords

catalytic wet air oxidation aniline phenol carboxylic acids acetic acid ammonia ruthenium platinum palladium cerium oxide 

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Copyright information

© Springer Science+Business Media, Inc. 2005

Authors and Affiliations

  • J. BarbierJr
    • 1
  • L. Oliviero
    • 1
  • B. Renard
    • 1
  • D. Duprez
    • 1
  1. 1.Laboratoire de Catalyse en Chimie Organique, LACCO UMR 6503CNRS & Université de Poitiers 40CedexFrance

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