| Taylor流下微细颗粒增强CO2:吸收研究（英文） |
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| 引用本文： | 蔡旺锋,张娇,张旭斌,王燕,齐向娟. Taylor流下微细颗粒增强CO2:吸收研究（英文）[J]. 中国化学工程学报, 2013, 21(2): 135-143. DOI: 10.1016/S1004-9541(13)60451-6 |
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| 作者姓名： | 蔡旺锋 张娇 张旭斌 王燕 齐向娟 |
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| 作者单位： | School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China |
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| 基金项目： | Supported by the National Natural Science Foundation of China(20706041,20876109);the Natural Science Foundation of Tianjin,China(09JCYBJC06500) |
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| 摘 要： | The physical absorption of CO2 in water containing different types of particles was studied in a microchannel operated under Taylor flow.The maximum enhancement factors of 1.43 2.15 were measured for activated carbon (AcC) particles.The analysis shows that the enhancement effect can be attributed to the shuttle mechanism.Considering the separate contributions of mass transfer from bubble cap and liquid film,a heterogeneous enhancement model is developed.According to this model,the enhancement factors E Cap,E Film and E Ov are mainly determined by mass transfer coefficient KL (KL,Cap and KL,Film),adsorptive capacity of particles m,and coverage fraction of particles at gas-liquid interface ζ.With both effects of particle-to-interface adhesion and apparent viscosity included,the model predicts the enhancement effect of AcC particles reasonably well.
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| 关 键 词： | enhancement factor gas-liquid mass transfer adsorptive particle Taylor flow microchannel |
| 收稿时间： | 2011-11-10 |
Enhancement of CO2 Absorption under Taylor Flow in the Presence of Fine Particles |
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| CAI Wangfeng , ZHANG Jiao , ZHANG Xubin , WANG Yan , QI Xiangjuan. Enhancement of CO2 Absorption under Taylor Flow in the Presence of Fine Particles[J]. Chinese Journal of Chemical Engineering, 2013, 21(2): 135-143. DOI: 10.1016/S1004-9541(13)60451-6 |
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| Authors: | CAI Wangfeng ZHANG Jiao ZHANG Xubin WANG Yan QI Xiangjuan |
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| Affiliation: | School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China |
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| Abstract: | The physical absorption of CO2 in water containing different types of particles was studied in a microchannel operated under Taylor flow. The maximum enhancement factors of 1.43-2.15 were measured for activated carbon (AcC) particles. The analysis shows that the enhancement effect can be attributed to the shuttle mechanism. Considering the separate contributions of mass transfer from bubble cap and liquid film, a heterogeneous enhancement model is developed. According to this model, the enhancement factors ECap, EFilm and EOv are mainly determined by mass transfer coefficient KL (KL,Cap and KL,Film), adsorptive capacity of particles m, and coverage fraction of particles at gas-liquid interface ζ. With both effects of particle-to-interface adhesion and apparent viscosity included, the model predicts the enhancement effect of AcC particles reasonably well. |
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| Keywords: | enhancement factor gas-liquid mass transfer adsorptive particle Taylor flow microchannel |
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