Numerical simulation of two-phase flow and droplet breakage of glycerin-water mixture and kerosene in the cyclone reactor

Yanni Chi; Rui Zhang; Xianghai Meng; Jian Xu; Wei Du; Haiyan Liu; Zhichang Liu

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Numerical simulation of two-phase flow and droplet breakage of glycerin-water mixture and kerosene in the cyclone reactor

Chemical Engineering Thermodynamics | Updated：2026-01-06

- Numerical simulation of two-phase flow and droplet breakage of glycerin-water mixture and kerosene in the cyclone reactor
- Chinese Journal of Chemical Engineering Vol. 34, Issue 6, Pages: 150-159(2021)
- Affiliations：
  
  State Key Laboratory of Heavy Oil Processing, China University of Petroleum-, Beijing,Beijing,China,102249
- Author bio：
- Funds：
- DOI：
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- Published：2021
- Accepted：
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Yanni Chi, Rui Zhang, Xianghai Meng, Jian Xu, Wei Du, Haiyan Liu, Zhichang Liu. Numerical simulation of two-phase flow and droplet breakage of glycerin-water mixture and kerosene in the cyclone reactor[J]. Chinese Journal of Chemical Engineering, 2021, 34(6): 150-159.
DOI：

Yanni Chi, Rui Zhang, Xianghai Meng, Jian Xu, Wei Du, Haiyan Liu, Zhichang Liu. Numerical simulation of two-phase flow and droplet breakage of glycerin-water mixture and kerosene in the cyclone reactor[J]. Chinese Journal of Chemical Engineering, 2021, 34(6): 150-159. DOI：

摘要

Abstract

A liquid-liquid cyclone reactor (LLCR) was designed to achieve mixing-reaction-separation integration during isobutane alkylation catalyzed by ionic liquids. However

studies of the droplets deformation and breakage in the kind of reactors are lacking. In this work

the research studied the velocity distribution

pressure field

and turbulent field to investigate the flow pattern and the main energy loss location in the LLCR through the computational fluid dynamics (CFD) method. The simulation results were verified by experiemnts to prove the correctness of the model. Then the deformation and breakage process of droplets

and the influencing factors of droplets breakage were studied by remodeling which was based on the tangential velocity distribution result of the three dimensional model. The three dimensional simulation results clearly showed that the pressure of the LLCR was mainly concentrated in the cone section and fluid turbulent motion was the most intense near the lateral wall. The reconstruct the results of the two dimensional model clearly showed that the deformation and breakage location of droplets were mainly occurred in the velocity boundary layer

while it was difficult to break in the mainstream region. In addition

low surface tension and high Weber number had a positive effect on droplet breakage.

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