Catalytic wet air oxidation of butyric acid and maleic acid solutions over noble metal catalysts prepared on TiO2

Dükkancı M. , Gündüz G.

CATALYSIS COMMUNICATIONS, vol.10, pp.913-919, 2009 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 10
  • Publication Date: 2009
  • Doi Number: 10.1016/j.catcom.2008.12.022
  • Page Numbers: pp.913-919


The catalytic wet air oxidation (CWAO) of butyric and maleic acids was carried out in a batch reactor operated at 333 K and at atmospheric pressure. Noble metals (platinum, palladium and ruthenium) supported on TiO2 were used as catalysts as well as commercial Pt/Al2O3, Maleic and butyric acids could be oxidized only into intermediates on the commercial Pt/Al2O3 catalysts with a conversion of 11% and 7.9%, respectively. Total oxidation to CO2 ranged from 0.0% to 0.35% for butyric acid (BA) and from 0.4% to 1.7% for maleic acid (MA). Intermediate products were oxalic and formic acids. In BA oxidation, acetic acid was also detected. (C) 2008 Elsevier B.V. All rights reserved.