中文摘要：

采用纯CO2-去离子水和0．1mol·L^-1 NaOH溶液为实验体系，选用8种具有不同微观结构的板式膜，研究了膜厚度、孔隙率，微孔形态等对膜吸收过程中传质性能的影响。结果表明，不同的微孔形态（拉伸孔、柱状孔）以及所用膜的厚度对膜吸收过程传质性能的影响较小，在吸收速率较快时孔隙率会影响膜吸收过程的传质性能。同时，还对溶质在液相侧表面的传质行为进行了探讨，结果表明膜孔隙率对膜吸收过程的传质性能的影响与流动状态、反应体系、微孔间距等多因素有关。

英文摘要：

Eight kinds of flat membranes with different micro-structures were chosen to carry out the membrane absorption experiments with CO2 and dcionizcd water or 0.1 mol·L^-1 NaOH solution as experimental system The experimental results show that the membrane pores shape （stretched pore and cylinder pore） and the membrane thickness do not affect the membrane absorption process, and the membrane porosity has only little influence on the membrane absorption process for slow mass transfer system. However, the influence of porosity on the membrane absorption process will increase when the absorption rate of the absorption system is higher. Moreover, the mass transfer behavior of absorbate near the membrane surface of liquid side was studied. The results show that the influence of membrane porosity on the mass transfer performance of the membrane relates to several factors, such as the flow condition, the absorption system, the distance between the micro-pores, etc..