The role of carbon-nitrogen interactions in the lowtemperature oxidation of NH3/CH3OH fuel blends

Ammonia/methanol (CH3OH) blends are gaining increasing attention due to methanol's capability to offset the most important chemical limitation of ammonia, such as its high autoignition temperature and low flame speed. This study aims to understand the binary interactions between ammonia and CH3OH at low temperatures. The related reactions were added to a detailed kinetic mechanism for description of the pyrolysis and oxidation behavior of such fuel mixtures. It was found that the interactions impact the simulations of experimental conditions decreasing the ignition delay time. Sensitivity analysis was utilized to understand the most important reactions in the system.