Temperature profiles and effluent concentrations were measured during combustion of aqueous urea and ammonium nitrate at pressures of 1–15 MPa. Pollutant levels decreased, while the combustion temperature showed a non-monotonic change with increasing pressure. Experimental temperature profiles were applied in kinetic gas-phase simulations, and resulting species concentrations were in good agreement with experimental values. Sensitivity analyses indicated the kinetic parameters of isocyanic acid hydrolysis are the main source of uncertainty, possibly leading to the lower agreement observed for experimental and simulation carbon species. Rate of production analyses indicated that isocyanic acid is mainly consumed by hydrolysis to carbon dioxide, while nitric acid reacts with nitrous acid to produce water. Ammonia exhibited two channels of decomposition, reacting with either hydroxyl or nitrogen dioxide to form amidogen and either water or nitrous acid, respectively. Nitrogen was mainly formed by the three-body reaction of diazenyl. As pressure increased, the aforementioned pathways became increasingly dominant.

在尿素和硝酸铵水溶液在1-15 MPa的压力下燃烧过程中，测量了温度曲线和废水浓度。污染物水平降低，而燃烧温度随压力升高呈现非单调变化。将实验温度曲线应用于动力学气相模拟中，得到的物质浓度与实验值高度吻合。敏感性分析表明，异氰酸水解的动力学参数是不确定性的主要来源，可能导致对实验和模拟碳物种观察到的一致性较低。生产率分析表明，异氰酸主要通过水解为二氧化碳而消耗，而硝酸与亚硝酸反应生成水。氨具有两个分解通道，分别与羟基或二氧化氮反应形成酰胺基和水或亚硝酸。氮主要由二氮烯的三体反应形成。随着压力的增加，上述途径变得越来越占主导地位。