Accurate prediction of SO₂ absorption efficiency under different physical and chemical parameters is of significant importance for desulfurization of the flue gas. In order to understand the mechanism of SO₂ absorption inside a bubble-dispersion tower, a three-dimensional twin Eulerian model together with two-film theory was applied to simulate the flue gas desulfurization processes in a bubble-dispersion tower. After comparing the predicted desulfurization efficiencies by using calculated gas holdup with the experimental parameters, the deviation of simulated model with the measured ones was small. Moreover, it was observed that the larger the fractional hole area, the better desulfurization performance. The bubble tower showed fine adaptability when the superficial gas velocity varies from 0.3 to 0.7 m/s. Also, there was a positive correlation between the SO₂ removal ability and the hydrogen ion concentration. Considering the crystallization of calcium sulfite, the PH of slurry tank inside bubble tower is recommended to be set between 5.5 and 6, and the initial CaCO₃ mass fraction is suggested to be set around 10–15% under prediction conditions. Moreover, the SO₂ absorption capability could be increased by lifting the initial liquid height, while the SO₂ removal efficiency would level off when tube insertion depth/column diameter H/D was over 0.128, so the H/D is suggested to be set from 0.08 to 0.128 to achieve high SO₂ absorption and avoid soil erosion. It was observed that the smaller the size of bubbles generated in the slurry, the higher SO₂ absorption efficiency could be.

在不同的物理和化学参数下，准确预测SO _2的吸收效率对烟气脱硫具有重要意义。为了了解SO ₂的机理在气泡分散塔内吸收烟气的过程中，采用三维双欧拉模型和两层膜理论模拟了气泡分散塔内烟气脱硫过程。通过将计算出的气体滞留率与实验参数进行比较，可以预测脱硫效率，模拟模型与实测模型的偏差较小。此外，观察到分数孔面积越大，脱硫性能越好。当表观气体速度从0.3到0.7 m / s变化时，气泡塔显示出良好的适应性。而且，SO ₂之间存在正相关去除能力和氢离子浓度。考虑到亚硫酸钙的结晶，建议将气泡塔内浆料罐的PH设置在5.5至6之间，并在预测条件下建议将初始CaCO ₃质量分数设置在10％至15％之间。此外，通过提高初始液体高度可以提高SO _2的吸收能力，而当管插入深度/柱直径H / D超过0.128时，SO ₂去除效率将趋于稳定，因此建议设置H / D从0.08到0.128，以实现高SO ₂吸收并避免水土流失。观察到在浆料中产生的气泡越小，SO ₂越高。 吸收效率可以。