Treatment of aniline by catalytic wet air oxidation: Comparative study over CuO/CeO2 and NiO/Al2O3

The treatment of aniline by catalytic wet air oxidation (CWAO) was studied in a bubble reactor. The experiments were performed to investigate the effects of catalyst loading, temperature, reaction time, air flow rate, and pressure on aniline removal. The catalytic effects of the prepared nanostructured catalysts, CuO/CeO2 (10% wt) and NiO/Al2O3 (10% wt), on the CWAO treatment efficiency were also examined and compared. The prepared catalysts seem to be active having an aniline removal of 45.7% with CuO/CeO2 and 41.9% with NiO/Al2O3. The amount of N2 formed was approximately the same for both of the catalysts.

► Treatment of aniline by catalytic wet air oxidation. ► Comparison of performances of nanostructured catalysts. ► Prepared catalysts seemed to be active having aniline removals around 45%. ► The amount of N2 formed was approximately the same for both catalysts.