Spray scattering tower with ammonia desulfurization has been drew a widespread attention for its low energy consumption and high desulfurization efficiency. In this work, we presented the results of numerical simulations on ammonia desulfurization characteristics in the spray scattering tower. Firstly, according to the structure and the flow characteristic of spray scattering tower, the flow, heat transfer and mass transfer model was established for the spray and bubble zone, respectively. Compared with the traditional model, the model is consider the flow characterize of bubbles and liquid, including bubbles size distribution, the dynamic change of bubble size, and turbulent kinetic exchange between bubbles and liquid due to flow characterize significantly affect the SO₂ absorption in bubble zone. Secondly, the operation parameters, such as liquid gas ratio, inlet SO₂ concentration, immersion depth of scattering tube and amount of flue gas, were investigated to show the influence on the overall desulfurization efficiency. At last, a new spray scattering tower equipped with the double inlets was proposed to increase the desulfurization efficiency than that with the single inlet under the same condition.

氨法脱硫的喷雾散射塔以其低能耗，高脱硫效率而受到广泛关注。在这项工作中，我们介绍了喷雾散射塔中氨脱硫特性的数值模拟结果。首先根据喷雾塔的结构和流动特性，分别建立了喷雾区和气泡区的流动，传热和传质模型。与传统模型相比，该模型考虑了气泡和液体的流动特性，包括气泡大小分布，气泡大小的动态变化以及由于流动而引起的气泡和液体之间的湍流动力学交换，这对SO ₂产生了显着影响。在气泡区吸收。其次，研究了液气比，入口SO ₂浓度，散射管的浸入深度和烟气量等运行参数，以显示对总脱硫效率的影响。最后，提出了在相同条件下，采用双进水口的新型喷雾散射塔，以提高脱硫效率。