Effect of the Oxygen Concentration and Temperature on Thermal Decomposition of N(2)O in an Inert Gas

[Image: see text] Nitrous oxide (N(2)O) is one of the greenhouse gases that contribute to global warming. But, there are few methods for controlling N(2)O directly. It is essential to reduce N(2)O to solve environmental problems. In this study, we investigate the O(2) concentration dependence of N(2)O decomposition under an argon-based gas mixture in a high-temperature thermal reactor. The gas concentrations are calculated using CHEMKIN. The results confirm that more N(2)O is converted to N(2) or NO at lower O(2) concentrations. Therefore, the conversion process is hindered by increasing the O(2) concentration. We propose a modified parameter of N(2)O decomposition, and it is employed in the CHEMKIN calculations. With the modified parameter, the experimental results are in a similar tendency to the calculated results.