Abstract：The desulfurization processes of coal-fired flue gas were compared, and the traditional ammonia desulfurization process was selected for improvement. In the improved process, the out-of-tower oxidation was adopted and the by-product ammonium sulfate was obtained by more effective evaporation crystallization. The structure of core equipment in ammonia desulphurization process was optimized. The double main pipe type spray and the swirl distributor were used in the desulfurization tower to promote the gas-liquid contact and increate the desulfurization efficiency. A computational fluid dynamics (CFD) model was used to investigate the influence of flue gas inlet angle on the desulfurization efficiency, the optimal value was 30 ?. The simulation results showed that the improved measures could reduce energy consumption and improved desulfurization efficiency, which is of great reference significance for the practical design and industrial application of desulfurization tower.
Chen Muhua,Yu Min,Liang Qiuyue et al. Simulation and Optimization of Deep Desulfurization Tower for Coal-Fired Tail Gas[J]. 化学反应工程与工艺, 2018, 34(6): 548-553.
