化工学报2012，Vol.63Issue(2)：500-507,8.DOI:10.3969/j.issn.0438-1157.2012.02.023
PVDF中空纤维膜吸收器捕获烟气CO2的工艺技术
Factors influencing CO2 capture by PVDF membrane contactor
摘要
Abstract
Polyvinylidine fluoride (PVDF) hollow fiber membrane contactors were applied to the separation of carbon dioxide (CO2) from flue gas using water (H2O), three aqueous solutions of sodium hydroxide ( NaOH ) , potassium glycine ( GLY ) , and potassium glycine-piperazine ( GLY-PZ ) as absorption solvents. Effects of flow mode, flow rates of feed gas and absorbent, concentration and temperature of absorbent, concentration of feed gas, and packing density on the removal rate and total mass transfer coefficient were investigated. Results show that the lumen side process with two phases flowing countercurrently has the highest separation efficiency. The absorption performance of four absorbents is in the sequence of NaOH > GLY-PZ > GLY > H2O. The effect of temperature on various absorbents is different. The separation efficiency of CO2 can be enhanced by increasing the packing density, concentration and flow rate of absorbent, while decreased with the increase of concentration and flow rate of flue gas.关键词
二氧化碳/膜吸收/中空纤维膜接触器/烟气Key words
carbon dioxide/ membrane absorption/ hollow fiber membrane contactor/ flue gas分类
化学化工引用本文复制引用
赖春芳,杨波,张国亮,温彩哨,曹荣,吴蓉蓉..PVDF中空纤维膜吸收器捕获烟气CO2的工艺技术[J].化工学报,2012,63(2):500-507,8.基金项目
国家自然科学基金项目(20776133,20976163) （20776133,20976163）
浙江省重大科技计划项目(2008C13014-2). （2008C13014-2）
