| 伴随传质的液液体系微分散流型图的实验研究(英文) |
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| 引用本文： | 邵华伟,吕阳成,王凯,骆广生.伴随传质的液液体系微分散流型图的实验研究(英文)[J].中国化学工程学报,2012,20(1):18-26. |
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| 作者姓名： | 邵华伟 吕阳成 王凯 骆广生 |
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| 作者单位： | State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China |
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| 基金项目： | Supported by the National Natural Science Foundation of China (20525622,20876084);the National Basic Research Program of China (2007CB714302) |
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| 摘 要： | This paper presents the experimental results of liquid-liquid microflows in a coaxial microfluidic device with mass transfer.Three working systems were n-butanol + phosphoric acid(PA) + water,methyl isobutyl ketone(MIBK) + PA + water,30% kerosene in tri-n-butylphosphate(TBP) + PA + water.The direction and intensity of mass transfer were adjusted by adding PA in one of two phases mutual saturated in advance.When PA transferred from the organic phase to the aqueous phase,tiny aqueous droplets may generate inside the organic phase by mass transfer inducement to form a new W/O/W flow pattern directly on some special cases.Once the PA concentration was very high,violent Marangoni effect could be observed to throw part of organic phase out of droplets as tail.The interphase transfer of PA could expand the jetting flow region,in particular for systems with low or medium inter-facial tension and when the mass transfer direction was from the aqueous phase to the organic phase.
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| 关 键 词： | mass transfer flow pattern liquid-liquid system microflows |
| 收稿时间： | 2011-05-31 |
An Experimental Study of Liquid-Liquid Microflow Pattern Maps Accompanied with Mass Transfer |
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| SHAO Huawei,Lü Yangcheng,WANG Kai and LUO Guangsheng.An Experimental Study of Liquid-Liquid Microflow Pattern Maps Accompanied with Mass Transfer[J].Chinese Journal of Chemical Engineering,2012,20(1):18-26. |
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| Authors: | SHAO Huawei Lü Yangcheng WANG Kai and LUO Guangsheng |
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| Affiliation: | State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | This paper presents the experimental results of liquid-liquid microflows in a coaxial microfluidic device with mass transfer.Three working systems were n-butanol + phosphoric acid(PA) + water,methyl isobutyl ketone(MIBK) + PA + water,30% kerosene in tri-n-butylphosphate(TBP) + PA + water.The direction and intensity of mass transfer were adjusted by adding PA in one of two phases mutual saturated in advance.When PA transferred from the organic phase to the aqueous phase,tiny aqueous droplets may generate inside the organic phase by mass transfer inducement to form a new W/O/W flow pattern directly on some special cases.Once the PA concentration was very high,violent Marangoni effect could be observed to throw part of organic phase out of droplets as tail.The interphase transfer of PA could expand the jetting flow region,in particular for systems with low or medium inter-facial tension and when the mass transfer direction was from the aqueous phase to the organic phase. |
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| Keywords: | mass transfer flow pattern liquid-liquid system microflows |
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