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题名: Liquid-liquid two-phase flow and mass transfer characteristics in packed microchannels
作者: Su, Yuanhai1, 2;  Zhao, Yuchao1;  Chen, Guangwen1;  Yuan, Quan1
通讯作者: 陈光文
关键词: Microchannel ;  Extraction ;  Mixing ;  Immiscible fluids ;  Mass transfer ;  Multiphase flow
刊名: CHEMICAL ENGINEERING SCIENCE
发表日期: 2010-07-01
DOI: 10.1016/j.ces.2010.03.034
卷: 65, 期:13, 页:3947-3956
收录类别: SCI
文章类型: Article
部门归属: 9
项目归属: 903
产权排名: 1;1
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Engineering, Chemical
研究领域[WOS]: Engineering
英文摘要: In this work, the flow hydrodynamic characteristics and the mass transfer performance of immiscible fluids in the packed microchannels are investigated experimentally. Water-kerosene system is used for visually identifying the flow hydrodynamic characteristics in PMMA microchannels, and water-succinic acid-n-butanol is chosen for investigating mass transfer performance in stainless steel microchannels. Quartz sand micro-particles are used as packing particles. In packed microchannels, high liquid-liquid dispersions can be obtained, and the diameter of droplets produced in the packed microchannel can be even less than 10 mu m. It ensures better mixing performance and larger effective interfacial area of two immiscible fluids, and improves the mass transfer performance obviously. Compared to the extraction efficiency (46-61%) in the non-packed microchannel, it can reach 81-96% in the packed microchannel. The effects of packing length, micro-particle size on liquid-liquid dispersions and extraction efficiency are investigated. The pressure drop and the specific energy dissipation in the packed microchannels are also discussed. (C) 2010 Elsevier Ltd. All rights reserved.
关键词[WOS]: MICROFLUIDIC DEVICE ;  RECTANGULAR MICROCHANNEL ;  PROCESS INTENSIFICATION ;  SOLVENT-EXTRACTION ;  METAL-IONS ;  REACTORS ;  MICROMIXERS ;  DESIGN ;  SYSTEM ;  MIXER
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000278603400005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/103099
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 Natl Lab Clean Energy, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Su, Yuanhai,Zhao, Yuchao,Chen, Guangwen,et al. Liquid-liquid two-phase flow and mass transfer characteristics in packed microchannels[J]. CHEMICAL ENGINEERING SCIENCE,2010,65(13):3947-3956.
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