Liquid–liquid two-phase flow in a wire-embedded concentric microchannel: Flow pattern and mass transfer performance

Ming Chen; Huiyan Jiao; Jun Li; Zhibin Wang; Feng He; Yang Jin

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Liquid–liquid two-phase flow in a wire-embedded concentric microchannel: Flow pattern and mass transfer performance

Full Length Article | Updated：2026-01-06

- Liquid–liquid two-phase flow in a wire-embedded concentric microchannel: Flow pattern and mass transfer performance
- Liquid–liquid two-phase flow in a wire-embedded concentric microchannel: Flow pattern and mass transfer performance
- 中国化学工程学报（英文版） 2023年56卷第4期页码：281-289
- Affiliations：
  
  1. Engineering Research Center of Comprehensive Utilization and Clean Processing of Phosphorus Resources, School of Chemical Engineering, Sichuan University,Chengdu,China,610065
  2. The Key Laboratory of Fine Chemical Application Technology of Luzhou, Sichuan Vocational College of Chemical Technology,Luzhou,China,646300
- Author bio：
- Funds：
- DOI：
  中图分类号：
- 纸质出版：2023
- Accepted：
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Ming Chen, Huiyan Jiao, Jun Li, 等. Liquid–liquid two-phase flow in a wire-embedded concentric microchannel: Flow pattern and mass transfer performance[J]. 中国化学工程学报（英文版）, 2023,56(4):281-289.

Ming Chen, Huiyan Jiao, Jun Li, Zhibin Wang, Feng He, Yang Jin. Liquid–liquid two-phase flow in a wire-embedded concentric microchannel: Flow pattern and mass transfer performance[J]. Chinese Journal of Chemical Engineering, 2023, 56(4): 281-289.
Ming Chen, Huiyan Jiao, Jun Li, 等. Liquid–liquid two-phase flow in a wire-embedded concentric microchannel: Flow pattern and mass transfer performance[J]. 中国化学工程学报（英文版）, 2023,56(4):281-289. DOI：

Ming Chen, Huiyan Jiao, Jun Li, Zhibin Wang, Feng He, Yang Jin. Liquid–liquid two-phase flow in a wire-embedded concentric microchannel: Flow pattern and mass transfer performance[J]. Chinese Journal of Chemical Engineering, 2023, 56(4): 281-289. DOI：

摘要

Abstract

In this work

flow pattern and mass transfer of liquid–liquid two-phase flow in a wire-embedded concentric microchannel are studied using toluene–water system. Droplet flow

slug flow

oval flow and annular flow are observed in the wire-embedded concentric microchannel. The effects of embedded wires and physical properties on flow patterns are investigated. The embedded wire insert is conducive to the formation of annular flow. The flow pattern distribution regions are distinguished by the

(capillary number)

–We

org

(Weber number) flow pattern map. When

org

0.001

slug flow is the main flow pattern

and when

org

0.1

annular flow is the main flow pattern. Oval flow and droplet flow are between

org

= 0.001–0.1

and oval flow is transformed into droplet flow with the increase of

. The effect of flow rate

phase ratio

initial acetic acid concentration

insert shape and flow patterns on mass transfers are studied. Mass transfer process is enhanced under annular flow conditions

the volumetric mass transfer coefficient is up to 0.36 s

-1

because of the high interfacial area and in

terface renewal rate of annular flow.

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