SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2018, Vol. 26 ›› Issue (10): 2176-2184.DOI: 10.1016/j.cjche.2018.07.005

• Energy, Resources and Environmental Technology • 上一篇    下一篇

Co-pyrolysis characteristics of typical components of waste plastics in a falling film pyrolysis reactor

Zechen Jin1,2, Lijie Yin1, Dezhen Chen1, Yuanjie Jia1, Jun Yuan1, Yuyan Hu1   

  1. 1 Thermal and Environmental Engineering Institute, Tongji University, Shanghai 200092, China;
    2 Shanghai Municipal Engineering Design Institute(Group) Co., Ltd., Shanghai 200092, China
  • 收稿日期:2018-03-13 修回日期:2018-06-19 出版日期:2018-10-28 发布日期:2018-11-14
  • 通讯作者: Lijie Yin,E-mail address:y_lijie@tongji.edu.cn
  • 基金资助:

    Supported by the National Natural Science Foundation of China (51503154, 51776141), Major Projects of China Water Pollution Control and Treatment Science and Technology (2017ZX07202005).

Co-pyrolysis characteristics of typical components of waste plastics in a falling film pyrolysis reactor

Zechen Jin1,2, Lijie Yin1, Dezhen Chen1, Yuanjie Jia1, Jun Yuan1, Yuyan Hu1   

  1. 1 Thermal and Environmental Engineering Institute, Tongji University, Shanghai 200092, China;
    2 Shanghai Municipal Engineering Design Institute(Group) Co., Ltd., Shanghai 200092, China
  • Received:2018-03-13 Revised:2018-06-19 Online:2018-10-28 Published:2018-11-14
  • Contact: Lijie Yin,E-mail address:y_lijie@tongji.edu.cn
  • Supported by:

    Supported by the National Natural Science Foundation of China (51503154, 51776141), Major Projects of China Water Pollution Control and Treatment Science and Technology (2017ZX07202005).

摘要: Waste plastics mainly come from MSW and usually exist in the form of mixed plastics. During the co-pyrolysis process of mixed plastics, various plastic components have different physicochemical properties and reaction mechanisms. Considering the high viscosity and low thermal conductivity of molten plastics, a falling film pyrolysis reactor was selected to explore the rapid co-pyrolysis process of typical plastic components (PP, PE and PS). The oil and gas yields and the compositions of pyrolysis products of the three components under different ratios at pyrolysis temperatures were analyzed to explore the co-pyrolysis characteristics of PP, PE, and PS. The study is of great significance to the recycling of waste plastics.

关键词: Co-pyrolysis, Falling film reactor, Waste plastics

Abstract: Waste plastics mainly come from MSW and usually exist in the form of mixed plastics. During the co-pyrolysis process of mixed plastics, various plastic components have different physicochemical properties and reaction mechanisms. Considering the high viscosity and low thermal conductivity of molten plastics, a falling film pyrolysis reactor was selected to explore the rapid co-pyrolysis process of typical plastic components (PP, PE and PS). The oil and gas yields and the compositions of pyrolysis products of the three components under different ratios at pyrolysis temperatures were analyzed to explore the co-pyrolysis characteristics of PP, PE, and PS. The study is of great significance to the recycling of waste plastics.

Key words: Co-pyrolysis, Falling film reactor, Waste plastics