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Article: Mass transfer mechanism of CO2 absorption through a non-porous hollow fiber contactor

TitleMass transfer mechanism of CO2 absorption through a non-porous hollow fiber contactor
Authors
KeywordsCarbon Dioxide
Dense Membrane
Mass Transfer Mechanism
Non-Porous Hollow Fiber Contactor
Issue Date2007
Citation
Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities, 2007, v. 21 n. 4, p. 556-562 How to Cite?
AbstractThe mass transfer mechanism of CO2 absorption through a non-porous hollow fiber contactor was studied. In the hollow fiber contactor, silicone rubber-polysulphone hollow fiber composite membranes were used. The effects of various absorbents, liquid volumetric velocity, liquid pressure, concentration of NaOH solution used and gas pressure on the efficiency of CO2 absorption were investigated. A mathematical model of KG was set up, and the results obtained from the model are in good agreement with the experimental results. Both the experimental and calculated data indicate that the chemical absorption has higher absorption efficiency than the physical absorption does, and the mass transfer of the chemical absorption is controlled by the membrane resistance. When NaOH solution with concentration of 2 × 103 mol · m-3 was employed as absorbent, the overall mass transfer coefficient almost reaches the value of individual mass transfer coefficient of the membrane. Finally, the smooth absorption process shows that the bubbling and weeping problems, those are frequently encountered in microporous hollow fiber contactor, can be eliminated by using non-porous hollow fiber contactor. Therefore, the non-porous hollow fiber composite membrane used in our study has application potential of using it as a gas-liquid contactor.
Persistent Identifierhttp://hdl.handle.net/10722/90868
ISSN
2015 SCImago Journal Rankings: 0.172
References

 

DC FieldValueLanguage
dc.contributor.authorSun, C-Gen_HK
dc.contributor.authorCao, Y-Men_HK
dc.contributor.authorJie, X-Men_HK
dc.contributor.authorWang, T-Hen_HK
dc.contributor.authorLin, Ben_HK
dc.contributor.authorYuan, Qen_HK
dc.date.accessioned2010-09-17T10:09:35Z-
dc.date.available2010-09-17T10:09:35Z-
dc.date.issued2007en_HK
dc.identifier.citationGao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities, 2007, v. 21 n. 4, p. 556-562en_HK
dc.identifier.issn1003-9015en_HK
dc.identifier.urihttp://hdl.handle.net/10722/90868-
dc.description.abstractThe mass transfer mechanism of CO2 absorption through a non-porous hollow fiber contactor was studied. In the hollow fiber contactor, silicone rubber-polysulphone hollow fiber composite membranes were used. The effects of various absorbents, liquid volumetric velocity, liquid pressure, concentration of NaOH solution used and gas pressure on the efficiency of CO2 absorption were investigated. A mathematical model of KG was set up, and the results obtained from the model are in good agreement with the experimental results. Both the experimental and calculated data indicate that the chemical absorption has higher absorption efficiency than the physical absorption does, and the mass transfer of the chemical absorption is controlled by the membrane resistance. When NaOH solution with concentration of 2 × 103 mol · m-3 was employed as absorbent, the overall mass transfer coefficient almost reaches the value of individual mass transfer coefficient of the membrane. Finally, the smooth absorption process shows that the bubbling and weeping problems, those are frequently encountered in microporous hollow fiber contactor, can be eliminated by using non-porous hollow fiber contactor. Therefore, the non-porous hollow fiber composite membrane used in our study has application potential of using it as a gas-liquid contactor.en_HK
dc.languageengen_HK
dc.relation.ispartofGao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universitiesen_HK
dc.subjectCarbon Dioxideen_HK
dc.subjectDense Membraneen_HK
dc.subjectMass Transfer Mechanismen_HK
dc.subjectNon-Porous Hollow Fiber Contactoren_HK
dc.titleMass transfer mechanism of CO2 absorption through a non-porous hollow fiber contactoren_HK
dc.typeArticleen_HK
dc.identifier.emailLin, B:blin@hku.hken_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-34548499899en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34548499899&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume21en_HK
dc.identifier.issue4en_HK
dc.identifier.spage556en_HK
dc.identifier.epage562en_HK

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