An energy minimum multiscale model was adjusted to simulate the mesoscale structure of the flue gas desulfurization process in a powder-particle spouted bed and verified experimentally. The obtained results revealed that the spout morphology simulated by the adjusted mesoscale drag model was unstable and discontinuous bubbling spout unlike the stable continuous spout obtained using the Gidaspow model. In addition, more thorough gas radial mixing was achieved using the adjusted mesoscale drag model. The mass fraction of water in the gas mixture at the outlet determined by the heterogeneous drag model was 1.5 times higher than that obtained by the homogeneous drag model during the simulation of water vaporization. For the desulfurization reaction, the experimental desulfurization efficiency was 75.03%, while the desulfurization efficiencies obtained by the Gidaspow and adjusted mesoscale drag models were 47.63% and 75.08%, respectively, indicating much higher accuracy of the latter technique.

调整能量最小多尺度模型模拟粉粒喷射床烟气脱硫过程的中尺度结构并进行实验验证。获得的结果表明，与使用 Gidaspow 模型获得的稳定连续喷口不同，调整后的中尺度阻力模型模拟的喷口形态是不稳定和不连续的冒泡喷口。此外，使用调整后的中尺度阻力模型实现了更彻底的气体径向混合。在模拟水汽化过程中，非均相阻力模型确定的出口气体混合物中水的质量分数是均相阻力模型的1.5倍。对于脱硫反应，实验脱硫效率为75.03%，