Dispersion behavior of liquid-liquid and gas-liquid two-phase flow in micro-packed beds

被引：6
作者：
Zhang, Jingwei [1 ]
Xu, Jianhong [1 ]
Chen, Zhuo [1 ,2 ]
机构：
[1] Tsinghua Univ, Dept Chem Engn, State Key Lab Chem Engn, Beijing, Peoples R China
[2] Tsinghua Univ, Dept Chem Engn, State Key Lab Chem Engn, Beijing 100084, Peoples R China
来源：
AICHE JOURNAL | 2024年 / 70卷 / 02期
基金：
中国国家自然科学基金;
关键词：
gas-liquid; liquid-liquid; micro-packed bed; multiphase dispersion; multiphase flow; MASS-TRANSFER; T-JUNCTION; DROPLET FORMATION; GENERATION; BUBBLES; DEVICE;
D O I：
10.1002/aic.18257
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Micro-packed beds have the advantages of excellent heat and mass transfer efficiency and high safety, which have been successfully applied to hydrogenation and oxidation reactions. The dispersion behavior of multiphase flow is closely related to mass transfer and reaction performance. However, the study of dispersion law in micro-packed beds is not sufficient. This work investigated the dispersion behavior of gas-liquid/liquid-liquid two-phase flow in micro-packed beds. The average size and distribution of droplets/bubbles were measured in different systems. Key parameters that affect the dispersion characteristics of the two phases were observed experimentally, including gas/liquid phase flow rate, size of the packing, and physical parameters of the systems. The experimental results showed that gas-liquid and liquid-liquid dispersion processes exhibited different characteristics due to the different physical parameters of liquid and gas as the dispersed phase. The fracture driving force of the gas-liquid process was mainly from the continuous liquid phase, while the fracture driving force of the liquid-liquid process came from both the dispersed phase and the continuous phase.
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页数：14
相关论文
共 36 条
[1]   On the breakup of fluid particles in turbulent flows [J].
Andersson, R ;
Andersson, B .
AICHE JOURNAL, 2006, 52 (06) :2020-2030
[2]   Modeling the breakup of fluid particles in turbulent flows [J].
Andersson, Ronnie ;
Andersson, Bengt .
AICHE JOURNAL, 2006, 52 (06) :2031-2038
[3]   Rapid degradation of refractory organic pollutants by continuous ozonation in a micro-packed bed reactor [J].
Cao, Qiang ;
Sang, Le ;
Tu, Jiacheng ;
Xiao, Yushi ;
Liu, Na ;
Wu, Lidong ;
Zhang, Jisong .
CHEMOSPHERE, 2021, 270 (270)
[4]   Efficient extraction and stripping of Nd(III), Eu(III) and Er(III) by membrane dispersion micro-extractors [J].
Chen, Zhuo ;
Xu, Jianhong ;
Sang, Funing ;
Wang, Yundong .
JOURNAL OF RARE EARTHS, 2018, 36 (08) :851-856
[5]   Determination of Dynamic Interfacial Tension during the Generation of Tiny Droplets in the Liquid-Liquid Jetting Flow Regime [J].
Cui, Yongjin ;
Li, Yankai ;
Wang, Kai ;
Deng, Jian ;
Luo, Guangsheng .
LANGMUIR, 2020, 36 (45) :13633-13641
[6]   Hydrogenation kinetics of m-dinitrobenzene in a continuous micro-packed bed reactor [J].
Duan, Xiaonan ;
Yin, Jiabin ;
Huang, Mengmeng ;
Feng, Aoxing ;
Fu, Weisong ;
Chen, Huaxiang ;
Huang, Zhenfu ;
Ding, Yagang ;
Zhang, Jisong .
CHEMICAL ENGINEERING SCIENCE, 2022, 248
[7]   Continuous hydrogenation of halogenated nitroaromatic compounds in a micropacked bed reactor [J].
Duan, Xiaonan ;
Yin, Jiabin ;
Feng, Aoxing ;
Huang, Mengmeng ;
Fu, Weisong ;
Xu, Wanfu ;
Huang, Zhenfu ;
Zhang, Jisong .
JOURNAL OF FLOW CHEMISTRY, 2022, 12 (01) :121-129
[8]   Hydrodynamics of Gas-Liquid Cocurrent Flows in Micropacked Beds-Wall Visualization Study [J].
Faridkhou, Ali ;
Larachi, Faical .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2012, 51 (50) :16495-16504
[9]  
Garstecki P, 2006, LAB CHIP, V6, P693
[10]   Aerodynamic effects in the break-up of liquid jets:: on the first wind-induced break-up regime [J].
Gordillo, JM ;
Pérez-Saborid, M .
JOURNAL OF FLUID MECHANICS, 2005, 541 :1-20
1234