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研究了气体膜分离与溶剂吸收相结合的分离技术．以NaOH水溶液为吸收剂，在中空纤维膜组件中实现二氧化硫气体的选择性吸收．研究了在三种不同结构的疏水性聚丙烯中空纤维膜组件中，吸收剂浓度、液速、气速、气液两相在膜组件内的流程、膜结构等对分离过程的影响；根据膜结构的实际参数确定了多孔膜的曲率因子，总传质系数的计算值与实验值相符．
The separation technique of gas membrane separation and solvent absorption was studied. With NaOH aqueous solution as absorbent, the selective absorption of sulfur dioxide gas is realized in the hollow fiber membrane module. The effects of the concentration of absorbent, the liquid velocity, the gas velocity, the flow of gas-liquid two phase in the membrane module, the membrane structure and so on on the separation process were investigated in three different types of hydrophobic polypropylene hollow fiber membrane modules. The actual parameters of the structure determine the curvature factor of the porous membrane. The calculated values of the total mass transfer coefficient are consistent with the experimental values.