Formation of Volatile NO and N2 through NH3 in a Low-Oxygen Atmosphere
1986 Volume 12 Issue 4 Pages 393-400
Details
1986 Volume 12 Issue 4 Pages 393-400
The gas-phase formation of Volatile NO and N2 through NH3 in a mixture of NH3, H2, O2 and Ar (balance gas) was investigated both experimentally and theoretically in a tubular-flow reactor. The experiments were conducted in the temperature range of 970 to 1400 K and in an oxygen concentration lower than 2000 ppm. The experimental results obtained were compared with numerically calculated results of the reaction model based on elementary reaction kinetics, taking the heating process of the reactant gas into consideration.
It was revealed within the range of the present experimental conditions that 1) the main product of the decay of NH3 is N2, while NO formation is relatively scant, and 2) the formation rate of N2 from NH3 is enhanced by the coexistence of H2 and O2.
These experimental trends were confirmed to be in close agreement with the calculated results of the proposed reaction model.
Finally, a main reaction route for the formation of NO and N2 was simplified.
