Wetting phenomenon in membrane contactors - Causes and prevention

被引:228
作者
Mosadegh-Sedghi, Sanaz [1 ]
Rodrigue, Denis [1 ]
Brisson, Josee [2 ]
Iliuta, Maria C. [1 ]
机构
[1] Univ Laval, Dept Chem Engn, Quebec City, PQ G1V 0A6, Canada
[2] Univ Laval, Dept Chem, Quebec City, PQ G1V 0A6, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
CO2; separation; Membrane contactors; Membrane wetting; Wetting prevention; HOLLOW-FIBER MEMBRANE; SUPER-HYDROPHOBIC SURFACES; FLUORINE PLASMA TREATMENTS; GAS-LIQUID CONTACTOR; CARBON-DIOXIDE; CO2; ABSORPTION; MASS-TRANSFER; AQUEOUS-SOLUTIONS; SUPERHYDROPHOBIC SURFACE; ASYMMETRIC POLYIMIDE;
D O I
10.1016/j.memsci.2013.09.055
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Gas-liquid membrane contactors are promising alternatives to conventional absorption technologies. However, in spite of their important advantages, such systems suffer from gradual wetting of porous membranes with liquid absorbents. This review focuses on the wetting phenomenon, which is the main concern for long-term operation of CO2 absorption in membrane contactors and has therefore an important impact On industrial applications. The impact of membrane wetting on mass transfer resistance and absorption efficiency, the effect of influencing parameters including absorbent (operational conditions, type and concentration) and membrane (hydrophobicity, pore size and porosity) properties on wetting phenomenon, as well as different methods to prevent membrane wetting, along with their advantages and drawbacks are discussed in detail. (C) 2013 Elsevier B.V. All rights reserved.
引用
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页码:332 / 353
页数:22
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