KAGAKU KOGAKU RONBUNSHU
Online ISSN : 1349-9203
Print ISSN : 0386-216X
ISSN-L : 0386-216X
Selective Oxidation of Dissolved Ammonia to Nitrogen by Co2O3 Catalysts
Hiroyuki TanakaHiroshi KomiyamaHakuai Inoue
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1982 Volume 8 Issue 6 Pages 699-703

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Abstract

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.

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© by THE SOCIETY OF CHEMICAL ENGINEERS, JAPAN
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