牛胜利
教授
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Stepwise dechlorination and co-pyrolysis of poplar wood with dechlorinated polyvinyl chloride: Synergistic effect and products distribution
  • 发表刊物:
    Journal of the Energy Institute
  • 关键字:
    Co-pyrolysis; Waste biomass; Dechlorinated polyvinyl chloride; Synergistic effec
  • 摘要:
    With the combination of stepwise dechlorination and co-pyrolysis techniques, this study conducted polyvi-nyl chloride (PVC) dechlorination experiments and co-pyrolysis experiments of poplar wood (PW) with dechlorinated polyvinyl chloride (DPVC) by thermogravimetric analysis and a fixed bed reactor. Stepwise pyrolysis effectively removed Cl from PVC with a dechlorination efficiency of 99.84% at 360 °C for 30 minutes. Thermogravimetric tests and thermokinetic variables were employed to describe the co-pyrolysis process's thermodynamic behavior, where co-pyrolysis significantly diminished the activation energy of the initial pyrolysis stage (9.65-21.62 kJ/mol) and increased the reaction rate (0.02-0.09 %/°C). The synergistic effect of co-pyrolysis enhanced the yield and quality of liquid oil and reduced the solid residue rate, with the maximum change in solid residue rate (-2.36%) occurring at PW:DPVC=3:7. The optimal conditions for the synergistic effect are a raw material ratio of 3:7 at 500 °C. Co-pyrolysis efficiently reduced the content of oxygen-containing compounds of phenols, ketones, and acids in oil, and elevated the selectivity of aromat-ics. The research methods avoid the drawbacks of bio-oil and plastic oil and improve the quality of pyrolysis oil in a concise and efficient manner, which provides some new ideas for the resource and clean utilization of municipal waste.
  • 全部作者:
    Jie Zhu,Jie Geng,Jisen Liu,Kuihua Han,Yongzheng Wang,Sunwen Xia
  • 第一作者:
    Zihao Yang
  • 论文类型:
    期刊论文
  • 通讯作者:
    Shengli Niu* (* the corresponding author)
  • 学科门类:
    工学
  • 一级学科:
    动力工程及工程热物理
  • 文献类型:
    J
  • 卷号:
    117
  • 页面范围:
    101819
  • 是否译文:
  • 发表时间:
    2024-09-01
  • 收录刊物:
    SCI
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