Numerical investigation of turbulent mass transfer processes in turbulent fluidized bed by computational mass transfer

Hailun Ren; Liang Zeng; Wenbin Li; Shuyong Chen; Zhongli Tang; Donghui Zhang

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Numerical investigation of turbulent mass transfer processes in turbulent fluidized bed by computational mass transfer

Updated：2026-01-06

- Numerical investigation of turbulent mass transfer processes in turbulent fluidized bed by computational mass transfer
- Numerical investigation of turbulent mass transfer processes in turbulent fluidized bed by computational mass transfer
- 中国化学工程学报（英文版） 2024年76卷第12期页码：64-74
- Affiliations：
  
  1. Department of Chemical Engineering, Tianjin Renai College,Tianjin,China,301636
  2. School of Chemical Engineering and Technology, Tianjin University,Tianjin,China,300072
  3. Innovation Center for Advanced Glass Materials (Anhui) Co., Ltd,Bengbu,China,233000
  4. The Research Center of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University,Tianjin,China,300072
- Author bio：
- Funds：
- DOI：
  中图分类号：
- 纸质出版：2024
- Accepted：
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Hailun Ren, Liang Zeng, Wenbin Li, 等. Numerical investigation of turbulent mass transfer processes in turbulent fluidized bed by computational mass transfer[J]. 中国化学工程学报（英文版）, 2024,76(12):64-74.

Hailun Ren, Liang Zeng, Wenbin Li, Shuyong Chen, Zhongli Tang, Donghui Zhang. Numerical investigation of turbulent mass transfer processes in turbulent fluidized bed by computational mass transfer[J]. Chinese Journal of Chemical Engineering, 2024, 76(12): 64-74.
Hailun Ren, Liang Zeng, Wenbin Li, 等. Numerical investigation of turbulent mass transfer processes in turbulent fluidized bed by computational mass transfer[J]. 中国化学工程学报（英文版）, 2024,76(12):64-74. DOI：

Hailun Ren, Liang Zeng, Wenbin Li, Shuyong Chen, Zhongli Tang, Donghui Zhang. Numerical investigation of turbulent mass transfer processes in turbulent fluidized bed by computational mass transfer[J]. Chinese Journal of Chemical Engineering, 2024, 76(12): 64-74. DOI：

摘要

Abstract

Turbulent fluidized bed possesses a distinct advantage over bubbling fluidized bed in high solids contact efficiency and thus exerts great potential in applications to many industrial processes. Simulation for fluidization of fluid catalytic cracking (FCC) particles and the catalytic reaction of ozone decomposition in turbulent fluidized bed is conducted using the Eulerian-Eulerian approach

where the recently developed two-equation turbulent (TET) model is introduced to describe the turbulent mass diffusion. The energy minimization multi-scale (EMMS) drag model and the kinetic theory of granular flow (KTGF) are adopted to describe gas-particles interaction and particle-particle interaction respectively. The TET model features the rigorous closure for the turbulent mass transfer equations and thus enables more reliable simulation. With this model

distributions of ozone concentration and gas-particles two-phase velocity as well as volume fraction are obtained and compared against experimental data. The average absolute relative deviation for the simulated ozone concentration is 9.67% which confirms the validity of the proposed model. Moreover

it is found that the transition velocity from bubbling fluidization to turbulent fluidization for FCC particles is about 0.5 m·s

-1

which is consistent with experimental observation.

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