SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2019, Vol. 27 ›› Issue (5): 1015-1020.DOI: 10.1016/j.cjche.2018.11.015

• Fluid Dynamics and Transport Phenomena • Previous Articles     Next Articles

Heat transfer characteristics of molten plastics in a vertical falling film reactor

Zechen Jin1,2, Lijie Yin1, Dezhen Chen1, Yuanjie Jia1, Jun Yuan1, Boyang Yu1   

  1. 1 Thermal and Environmental Engineering Institute, Tongji University, Shanghai 200093, China;
    2 Shanghai Municipal Engineering Design Institute(Group) Co., Ltd, Shanghai 200092, China
  • Received:2018-05-07 Revised:2018-10-13 Online:2019-06-27 Published:2019-05-28
  • Contact: Lijie Yin
  • Supported by:
    Supported by the National Natural Science Foundation of China (51,503,154, 51,776,141) and the Major Projects of China Water Pollution Control and Treatment Science and Technology (2017ZX07202005).

Heat transfer characteristics of molten plastics in a vertical falling film reactor

Zechen Jin1,2, Lijie Yin1, Dezhen Chen1, Yuanjie Jia1, Jun Yuan1, Boyang Yu1   

  1. 1 Thermal and Environmental Engineering Institute, Tongji University, Shanghai 200093, China;
    2 Shanghai Municipal Engineering Design Institute(Group) Co., Ltd, Shanghai 200092, China
  • 通讯作者: Lijie Yin
  • 基金资助:
    Supported by the National Natural Science Foundation of China (51,503,154, 51,776,141) and the Major Projects of China Water Pollution Control and Treatment Science and Technology (2017ZX07202005).

Abstract: The heat transfer efficiency during the pyrolysis process is a key factor to be considered in the design of pyrolysis reactors. In this study, the average apparent heat transfer characteristics of molten plastic pyrolysis in a vertical falling film reactor were explored by experiments and numerical simulation and the apparent heat transfer coefficients were determined. In addition, the temperature distribution and the thickness of the liquid film in the reactor were predicted and the influences of pyrolysis temperatures on the average apparent heat transfer coefficients were discussed.

Key words: Molten plastic, Heat transfer, Pyrolysis, Vertical falling film reactor

摘要: The heat transfer efficiency during the pyrolysis process is a key factor to be considered in the design of pyrolysis reactors. In this study, the average apparent heat transfer characteristics of molten plastic pyrolysis in a vertical falling film reactor were explored by experiments and numerical simulation and the apparent heat transfer coefficients were determined. In addition, the temperature distribution and the thickness of the liquid film in the reactor were predicted and the influences of pyrolysis temperatures on the average apparent heat transfer coefficients were discussed.

关键词: Molten plastic, Heat transfer, Pyrolysis, Vertical falling film reactor