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Experimental study on seawater absorption CO2 using hollow fiber membrane

Authors： LI Xiaoming，GUO Chungang，LIU Guochang，ZHANG Zhaocai，GUAN Yipeng，Chen Ying

Units： Institute of Seawater Desalination and Multipurpose Utilization，State Oceanic Administration， Tianjin 300192，China

KeyWords： Polypropylene hollow fiber membrane contactor；CO2 removal efficiency；seawater absorbent；mass transfer rate

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2012,32(1):93-97

Abstract：

Polypropylene hollow fiber membrane contactors were used for CO2 removal from simulated flue gas with seawater as absorbent. The effects of gas flowrate, CO2 concentration, seawater flowrate, seawater pH and membrane contactor packing fraction on CO2 removal efficiency were investigated. The results showed that increasing flue gas flowrate and CO2 concentration improved CO2 handling capacity for membrane contactor and reduced the CO2 removal efficiency. Increasing seawater flowrate or seawater pH could evidently improve CO2 removal and mass transfer rate, so that directly determined the mechanism for seawater absorbing CO2. Simply increasing packing fraction of membrane contactor could not improve CO2 removal efficiently. Making gas-liquid contact area effective and stable in the membrane contactor was important for promoting membrane gas absorption process.

Funds：

中央级公益性科研院所基本科研业务费专项资金项目

AuthorIntro：

李晓明(1980- ),女,辽宁朝阳人,硕士研究生,工程师,从事膜材料制备及应用研究.〈lixiaoming0618@yahoo.com.cn〉

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