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题名: Mass transfer process of CO2 absorption through non-porous hollow fibre contactor
作者: Sun, CG;  Cao, YM;  Zuo, L;  Lin, B;  Jie, XM;  Yuan, Q
关键词: membrane-based absorption ;  carbon dioxide ;  mechamism of mass transfer
刊名: CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
发表日期: 2005-11-10
卷: 26, 期:11, 页:2097-2102
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: A non-porous hollow fiber contactor containing silicone rubber-polysulphone hollow fiber composite membranes is used for the absorption of CO2. The effects of various absorbents, liquid volumetric velocity, liquid pressure, concentration of NaOH solution and gas pressure on the efficiency of CO2 absorption are investigated. The experiment results indicate that the chemical absorption has a higher absorption efficiency than the physical absorption does and the membrane resistance controls the mass transfer accompanied by chemical absorption. Furthermore, when 2 x 10(3) mol/m(3) NaOH solution is employed as the absorbent, the overall mass transfer coefficient(5.21 X 10(-6) Mol (.) m(-2) (.) s(-1) (.) kPa(-1)) almost reaches the value of permeation without absorption(5.85 X 10(-6) Mol (.) m(-2 .) s(-1) (.) kPa(-1)) and non-porous hollow fiber contactor has a higher selectivity for the existence of liquid film. Finally, the smooth mass transfer process shows that non-porous hollow fiber composite membrane eliminates bubbling and weeping in the liquid phase, which are frequently encountered in microporous hollow fiber contactor. Therefore, non-porous hollow fiber contactor used in this experiment has a potential for using as a gas-liquid contactor.
关键词[WOS]: MEMBRANE MODULES ;  GAS-ABSORPTION ;  CARBON-DIOXIDE ;  LIQUID ;  PERMEATION ;  REDUCTION
语种: 英语
WOS记录号: WOS:000233392400029
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139791
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Engn Design & Res Inst Second Artillery, Beijing 100011, Peoples R China

Recommended Citation:
Sun, CG,Cao, YM,Zuo, L,et al. Mass transfer process of CO2 absorption through non-porous hollow fibre contactor[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2005,26(11):2097-2102.
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