1982 Volume 8 Issue 6 Pages 699-703
The catalytic oxidation reaction of dissolved ammonia with Co2O3 was studied at 463 to 523K and 3 to 6 MPa. The reaction proceeds according to the stoichiometric relation 4NH3+3O2→2N2+6H2O. Kinetic studies showed that the reaction follows the first-order law with respect to both oxygen and ammonia and exhibits an activation energy of 61 kJ · mol-1. This catalytic reaction might be effectively incorporated as a denitrogenation step in the waste-water treatment process with wet air oxidation.