SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2022, Vol. 49 ›› Issue (9): 178-186.DOI: 10.1016/j.cjche.2021.12.023

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Research and development of advanced structured packing in a rotating packed bed

Zhi-Guo Yuan, Yu-Xia Wang, You-Zhi Liu, Dan Wang, Wei-Zhou Jiao, Peng-Fei Liang   

  1. Shanxi Province Key Laboratory of Higee-Oriented Chemical Engineering, North University of China, Taiyuan 030051, China
  • 收稿日期:2021-09-28 修回日期:2021-12-20 发布日期:2022-10-19
  • 通讯作者: Zhi-Guo Yuan,E-mail:ncityzg@163.com
  • 基金资助:
    Research Project Supported by Shanxi Scholarship Council of China (2021-120), and the National Natural Science Foundation of China International (Regional) Cooperation and Exchange Project (21961160740).

Research and development of advanced structured packing in a rotating packed bed

Zhi-Guo Yuan, Yu-Xia Wang, You-Zhi Liu, Dan Wang, Wei-Zhou Jiao, Peng-Fei Liang   

  1. Shanxi Province Key Laboratory of Higee-Oriented Chemical Engineering, North University of China, Taiyuan 030051, China
  • Received:2021-09-28 Revised:2021-12-20 Published:2022-10-19
  • Contact: Zhi-Guo Yuan,E-mail:ncityzg@163.com
  • Supported by:
    Research Project Supported by Shanxi Scholarship Council of China (2021-120), and the National Natural Science Foundation of China International (Regional) Cooperation and Exchange Project (21961160740).

摘要: As the core component of the rotating packing bed, packing is a place for efficient gas–liquid mixing and mass transfer. In this paper, a 3D structured packing composed of a mesh structure and a support structure was designed. The mesh structure is a ring-shaped mesh surrounded by triangular meshes, which is stable in structure and can achieve a high degree of dispersion and aggregation of the liquid phase. The support structure is composed of ring-shaped structural units arranged at a certain angle along the axial direction, which can enhance the turbulence of the airflow while constructing regular gas-phase channels. Circumferential steel meshes of different diameters and supporting structures are alternately combined to form 3D packing, which is loaded in a layered cross-flow rotating packing bed. The results show that under the same operating conditions, the mass transfer performance of 3D packing and wire mesh packing are equivalent, and both are better than pall ring packing. Moreover, the pressure drop of 3D packing is significantly lower than that of pall ring packing and wire mesh packing. The design and implementation of packing the development presented in this paper can be used to develop special structured packing for rotating bed, which can further improve the performance of rotating packed bed (RPB).

关键词: Rotating packed bed, 3D printed packing, 3D modeling, Mass transfer, Pressure drop, Gas–liquid channel

Abstract: As the core component of the rotating packing bed, packing is a place for efficient gas–liquid mixing and mass transfer. In this paper, a 3D structured packing composed of a mesh structure and a support structure was designed. The mesh structure is a ring-shaped mesh surrounded by triangular meshes, which is stable in structure and can achieve a high degree of dispersion and aggregation of the liquid phase. The support structure is composed of ring-shaped structural units arranged at a certain angle along the axial direction, which can enhance the turbulence of the airflow while constructing regular gas-phase channels. Circumferential steel meshes of different diameters and supporting structures are alternately combined to form 3D packing, which is loaded in a layered cross-flow rotating packing bed. The results show that under the same operating conditions, the mass transfer performance of 3D packing and wire mesh packing are equivalent, and both are better than pall ring packing. Moreover, the pressure drop of 3D packing is significantly lower than that of pall ring packing and wire mesh packing. The design and implementation of packing the development presented in this paper can be used to develop special structured packing for rotating bed, which can further improve the performance of rotating packed bed (RPB).

Key words: Rotating packed bed, 3D printed packing, 3D modeling, Mass transfer, Pressure drop, Gas–liquid channel