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Continuous catalytic wet air oxidation was investigated as a suitable
treatment of p-hydroxybenzoic acid chosen as a phenolic compound typically found
in olive mill wastewater. The reaction was conducted in a continuous reactor at 140
or 150 C and 50 bar of air using ruthenium catalysts supported by aerogel mixed
oxides (Ru/CeO2–Al2O3, Ru/CeO2–TiO2). The influence of the Ru precursor and
the nature of the support were studied. The results show that supported ruthenium
catalysts were active to oxidize p-hydroxybenzoic acid and that the catalytic activity
is very stable.
CitacióTriki, M. [et al.]. Stability of ruthenium catalysts supported by aerogel mixed oxides during the wet air oxidation of p-hydroxybenzoic acid in a continuous reactor. "Reaction Kinetics Mechanisms and Catalysis", Desembre 2012, vol. 107, núm. 2, p. 311-319.