采用“挤出-拉伸-烧结”法制备PTFE中空纤维膜,并用于浸没式脱除烟气中CO_2的研究。主要研究了气体流速、吸收剂浓度和搅拌器转速等操作条件对PTFE中空纤维膜浸没式脱除烟气中CO_2性能的影响。结果表明CO_2吸收率随着时间增加而减小,CO_2吸收量随时间增大而增大,CO_2吸收率随着气体流速增大而减小,CO_2吸收量随着气体流速的增大先增大后减小,CO_2吸收率、吸收量随着搅拌速度、吸收液浓度增大而增大。 PTFE hollow fiber membranes were prepared by extrusion-drawing-sintering method and used to immerse CO 2 in flue gas. The effects of operating conditions such as gas flow rate, absorbent concentration and stirrer speed on the CO 2 performance of PTFE hollow fiber membranes immersed in flue gas were studied. The results showed that the CO 2 absorption rate decreased with time, the amount of CO 2 absorption increased with time, the CO 2 absorption rate decreased with the increase of gas flow rate, and the CO 2 absorption increased with the increase of gas flow rate After the reduction, CO 2 absorption rate, absorption with the stirring speed, the absorption liquid concentration increases.