SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2024, Vol. 67 ›› Issue (3): 195-205.DOI: 10.1016/j.cjche.2023.11.011

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Mass transfer enhancement and hydrodynamic performance with wire mesh coupling solid particles in bubble column reactor

Chuanjun Di1, Jipeng Dong1, Fei Gao1, Guanghui Chen1, Pan Zhang2, Jianlong Li1   

  1. 1 Key Laboratory of Multiphase Flow Reaction and Separation Engineering of Shandong Province, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China;
    2 College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266043, China
  • 收稿日期:2023-08-12 修回日期:2023-11-24 出版日期:2024-03-28 发布日期:2024-06-01
  • 通讯作者: Guanghui Chen,E-mail address:guanghui@qust.edu.cn;Pan Zhang,E-mail address:pan_zh@qust.edu.cn.
  • 基金资助:
    This work was supported by the Key Research and Development Plan of Shandong Province (the Major Scientific and Technological Innovation Projects, 2021ZDSYS13), the Natural Science Foundation of Shandong Province (ZR2021MB135), and Natural Science Foundation of Shandong Province (ZR2021ME224).

Mass transfer enhancement and hydrodynamic performance with wire mesh coupling solid particles in bubble column reactor

Chuanjun Di1, Jipeng Dong1, Fei Gao1, Guanghui Chen1, Pan Zhang2, Jianlong Li1   

  1. 1 Key Laboratory of Multiphase Flow Reaction and Separation Engineering of Shandong Province, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China;
    2 College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266043, China
  • Received:2023-08-12 Revised:2023-11-24 Online:2024-03-28 Published:2024-06-01
  • Contact: Guanghui Chen,E-mail address:guanghui@qust.edu.cn;Pan Zhang,E-mail address:pan_zh@qust.edu.cn.
  • Supported by:
    This work was supported by the Key Research and Development Plan of Shandong Province (the Major Scientific and Technological Innovation Projects, 2021ZDSYS13), the Natural Science Foundation of Shandong Province (ZR2021MB135), and Natural Science Foundation of Shandong Province (ZR2021ME224).

摘要: It is of vital significance to investigate mass transfer enhancements for chemical engineering processes. This work focuses on investigating the coupling influence of embedding wire mesh and adding solid particles on bubble motion and gas-liquid mass transfer process in a bubble column. Particle image velocimetry (PIV) technology was employed to analyze the flow field and bubble motion behavior, and dynamic oxygen absorption technology was used to measure the gas-liquid volumetric mass transfer coefficient (kLa). The effect of embedding wire mesh, adding solid particles, and wire mesh coupling solid particles on the flow characteristic and kLa were analyzed and compared. The results show that the gas eliquid interface area increases by 33%-72% when using the wire mesh coupling solid particles strategy compared to the gas-liquid two-phase flow, which is superior to the other two strengthening methods. Compared with the system without reinforcement, kLa in the bubble column increased by≥0.5-1.8 times with wire mesh coupling solid particles method, which is higher than the sum of kLa increases with inserting wire mesh and adding particles, and the coupling reinforcement mechanism for affecting gas eliquid mass transfer process was discussed to provide a new idea for enhancing gas-liquid mass transfer.

关键词: Fluid mechanics, Bubble, Mass transfer, Wire mesh coupling solid particles, Particle image velocimetry, Hydrodynamics

Abstract: It is of vital significance to investigate mass transfer enhancements for chemical engineering processes. This work focuses on investigating the coupling influence of embedding wire mesh and adding solid particles on bubble motion and gas-liquid mass transfer process in a bubble column. Particle image velocimetry (PIV) technology was employed to analyze the flow field and bubble motion behavior, and dynamic oxygen absorption technology was used to measure the gas-liquid volumetric mass transfer coefficient (kLa). The effect of embedding wire mesh, adding solid particles, and wire mesh coupling solid particles on the flow characteristic and kLa were analyzed and compared. The results show that the gas eliquid interface area increases by 33%-72% when using the wire mesh coupling solid particles strategy compared to the gas-liquid two-phase flow, which is superior to the other two strengthening methods. Compared with the system without reinforcement, kLa in the bubble column increased by≥0.5-1.8 times with wire mesh coupling solid particles method, which is higher than the sum of kLa increases with inserting wire mesh and adding particles, and the coupling reinforcement mechanism for affecting gas eliquid mass transfer process was discussed to provide a new idea for enhancing gas-liquid mass transfer.

Key words: Fluid mechanics, Bubble, Mass transfer, Wire mesh coupling solid particles, Particle image velocimetry, Hydrodynamics