Past, Present, and Future in the Development of Medium and High-Temperature Catalytic Processes for N2O Decomposition

Trace N2O emissionsNO emission in ammonia burnerAmmonia burner during the nitric acid productionNitric acid production process have received special attention as N2O is recognized as a potent greenhouse gasGreenhouse gas that actively participates in global warmingGlobal warming. The abatement of N2O complies to international commitments aiming to reduce the greenhouse gas emissionsGreenhouse gas emissions through the installation of appropriate technologies. Different strategies have been categorized, the most efficient one involving the implementation of heterogeneous catalytic reactorHeterogeneous catalytic reactor in various positions of nitric acid plantNitric acid plant. The catalystCatalyst compositionComposition strongly depends on the running temperatureTemperature privileging mixed-metal oxidesMixed metal oxide for N2O decompositionNO decomposition at medium and high-temperatureTemperature whereas PlatinumPlatinum GroupGroup Metal-supported catalystsCatalyst can be preferred for end-of-pipeEnd-of-pipe technologies running at low temperatureTemperature with the help of reducing agentReducing agent. This present chapter focusses on medium and high-temperatureTemperature (350–900 °C) applicationApplication. Different theoretical and experimental approaches will be discussed in order to get more insights into the design of active sitesActive site, especially under more realistic running conditions to improve the understanding of kineticsKinetic and get more relevant reactionReaction mechanisms that could further provide guidelines for the preparation of more stable and selective catalystsCatalyst.