SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2021, Vol. 39 ›› Issue (11): 59-67.DOI: 10.1016/j.cjche.2020.10.046

• Fluid Dynamics and Transport Phenomena • Previous Articles     Next Articles

Hydrodynamics and mass transfer performance analysis of flow-guided trapezoid spray packing tray

Shuo Yang1,2, Jilong Zhang3, Jiaxing Xue1, Qingpeng Wu1, Qunsheng Li1, Hongkang Zhao1, Liqun Zhang4   

  1. 1 State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China;
    2 China Nuclear Power Engineering Co., Ltd, Beijing 100840, China;
    3 College of Mining Engineering, Taiyuan University of Technology, Taiyuan 030024, China;
    4 Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
  • Received:2020-07-15 Revised:2020-09-20 Online:2021-12-27 Published:2021-11-28
  • Contact: Hongkang Zhao
  • Supported by:
    This work was supported by National Natural Science Foundation of China (22008004) and Fundamental Research Funds for the Central Universities (ZY2017).

Hydrodynamics and mass transfer performance analysis of flow-guided trapezoid spray packing tray

Shuo Yang1,2, Jilong Zhang3, Jiaxing Xue1, Qingpeng Wu1, Qunsheng Li1, Hongkang Zhao1, Liqun Zhang4   

  1. 1 State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China;
    2 China Nuclear Power Engineering Co., Ltd, Beijing 100840, China;
    3 College of Mining Engineering, Taiyuan University of Technology, Taiyuan 030024, China;
    4 Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
  • 通讯作者: Hongkang Zhao
  • 基金资助:
    This work was supported by National Natural Science Foundation of China (22008004) and Fundamental Research Funds for the Central Universities (ZY2017).

Abstract: Distillation is the most common separation technology utilized in the petroleum and chemistry industries. Due to the wide usage of the distillation column, even a small improvement in performance may result in significant energy cost savings. Aiming to improve the hydrodynamics and mass transfer performance, the flow-guided trapezoid spray-packing tray (FTS-PT) was designed by combining flow-guided holes and trapezoidal caps with structured packing. And the experimental measurements of the FTS-PT, including pressure drop, clear liquid height, weeping, entrainment, and tray efficiency, were conducted in a 500 mm diameter plexiglass column with the air-water-oxygen system. Moreover, the performance of the FTS-PT was compared with that of new vertical sieve tray (New VST) and F1 valve tray. The results show that FTS-PT has a significant advantage in pressure drop, entrainment, and capacity. Furthermore, the calculation model of the pressure drop was derived and used for the FTS-PT with a relative deviation of less than 5%.

Key words: Flow-guided hole, Spray mode, Hydrodynamics, Mass transfer, Calculation model

摘要: Distillation is the most common separation technology utilized in the petroleum and chemistry industries. Due to the wide usage of the distillation column, even a small improvement in performance may result in significant energy cost savings. Aiming to improve the hydrodynamics and mass transfer performance, the flow-guided trapezoid spray-packing tray (FTS-PT) was designed by combining flow-guided holes and trapezoidal caps with structured packing. And the experimental measurements of the FTS-PT, including pressure drop, clear liquid height, weeping, entrainment, and tray efficiency, were conducted in a 500 mm diameter plexiglass column with the air-water-oxygen system. Moreover, the performance of the FTS-PT was compared with that of new vertical sieve tray (New VST) and F1 valve tray. The results show that FTS-PT has a significant advantage in pressure drop, entrainment, and capacity. Furthermore, the calculation model of the pressure drop was derived and used for the FTS-PT with a relative deviation of less than 5%.

关键词: Flow-guided hole, Spray mode, Hydrodynamics, Mass transfer, Calculation model