Research Initiation: A Fundamental Study of SO2 Adsorption Across Charged Droplet Interfaces of Several FGD Reagents

正在研究气体吸收试剂，如NaOH、Ca(OH)2、Na2SO3溶液和CaCO3浆液在带电液滴界面上吸收SO2的情况。在第一阶段，在外加电场和不加外加电场的情况下，确定了界面正负电子或离子电荷对SO2、SO2在氮气中、SO2在氮气和氧气中的平衡溶解度的影响。在第二阶段中，在液滴柱中测定了不同表面电荷密度、气相中不同的SO2浓度和液体中的离子浓度下的气体吸收速率。本研究将为实际评价液滴荷电对烟气脱硫吸收过程的影响提供理论依据。

The absorption of SO2 across charged droplet interfaces by gas absorption reagents such as NaOH, Ca(OH)2, and Na2SO3 solutions and CaCO3 slurries are being studied. During phase I, the influence of positive or negative interfacial electronic or ionic charge on the equilibrium solubilities of SO2, SO2 in N2, and SO2 in N2 and O2 are determined in the above adsorbents with and without the presence of an imposed electric field. In phase II, gas absorption rates are determined in a droplet column for various surface charge densities at various SO2 concentrations in the gas phase and ionic concentrations in the liquid phase. This research will contribute knowledge which can be used to realistically evaluate the effect of droplet charging on the SO2 absorption processes for flue gas desulfurization.