A three-bed ammonia reactor with the radial-axial flow and two heat exchangers in the rector's middle has been studied. According to the fluid regime type with two-dimensional axial-radial flow and intercooler, this reactor is different from the previous generation. Two-dimensional mathematical modelling is utilized to predict fluid flow, concentration, and temperature profiles along the reactor. The Navier-Stokes, mass, and heat partial differential equations are solved simultaneously via orthogonal collocation on the finite element. The results have been compared with industrial data, and good accordance has been observed. There are industrial data in the bed outlet, and results along the reactor cannot be validated. Therefore, CFD analysis of three beds is performed, and results are compared with results of two-dimensional mathematical modeling, and good agreement is observed.

研究了一个三轴氨反应器，该反应器在反应器的中间具有径向-轴向流和两个热交换器。根据具有二维轴向径向流和中间冷却器的流体状态类型，该反应堆与上一代不同。利用二维数学模型来预测沿着反应器的流体流量，浓度和温度分布。Navier-Stokes，质量和热量偏微分方程通过有限元上的正交配置同时求解。将结果与工业数据进行了比较，并观察到了很好的一致性。床出口处有工业数据，并且无法验证反应器的结果。因此，对三张床进行了CFD分析，