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Composite Pyrolysis of Biomass and Plastic for High-quality Fuel Oil over HZSM-5

Received: 15 April 2021    Accepted:     Published: 24 May 2021
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Abstract

Catalytic co-pyrolysis of biomass and plastic is a promising technology to their resource recovery and energy conversion. For the traditional technologies, the two feedstocks are mechanically mixed (MM) to the co-conversion reaction. However, there are disadvantages in the MM mode process, such as mixing nonuniformity and inconvenient transportation of feedstocks, poor heat and mass transfer during pyrolysis and low yield of effective products. To solve the above issues, a composite pyrolysis of biomass and plastic for high-quality fuel oil was innovatively studied in this paper at a lab-scale fixed bed reactor using HZSM-5 as a catalyst. Through procedures including mechanical mixing, hot pressing and crushing granulation, a composite molding (CM) sample was prepared. Then the optimal conditions for fuel oil production of the CM sample were explored, and under which conditions products distribution were compared with pyrolysis from the common MM sample. And possible mechanism for high-quality fuel oil generation of the composite pyrolysis was put forward through characterization of sample properties. Results show that, under the optimal reaction conditions of the composite pyrolysis, the yield of fuel oil was increased by 34.8% and the yield of aromatics was increased by 50.7% compared with the conventional pyrolysis from MM sample. Advantages of the composite pyrolysis could be explained by the enhanced contact between biomass and plastic particles, which promoted a stronger synergy between the two derived intermediates and effectively improved mass and heat transfer during pyrolysis process.

Published in American Journal of Chemical Engineering (Volume 9, Issue 2)
DOI 10.11648/j.ajche.20210902.12
Page(s) 39-46
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Biomass, Plastic, Co-pyrolysis, Composite Pyrolysis, Fuel Oil, Aromatics

References
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Cite This Article
  • APA Style

    Dongxue Yu. (2021). Composite Pyrolysis of Biomass and Plastic for High-quality Fuel Oil over HZSM-5. American Journal of Chemical Engineering, 9(2), 39-46. https://doi.org/10.11648/j.ajche.20210902.12

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    ACS Style

    Dongxue Yu. Composite Pyrolysis of Biomass and Plastic for High-quality Fuel Oil over HZSM-5. Am. J. Chem. Eng. 2021, 9(2), 39-46. doi: 10.11648/j.ajche.20210902.12

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    AMA Style

    Dongxue Yu. Composite Pyrolysis of Biomass and Plastic for High-quality Fuel Oil over HZSM-5. Am J Chem Eng. 2021;9(2):39-46. doi: 10.11648/j.ajche.20210902.12

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  • @article{10.11648/j.ajche.20210902.12,
      author = {Dongxue Yu},
      title = {Composite Pyrolysis of Biomass and Plastic for High-quality Fuel Oil over HZSM-5},
      journal = {American Journal of Chemical Engineering},
      volume = {9},
      number = {2},
      pages = {39-46},
      doi = {10.11648/j.ajche.20210902.12},
      url = {https://doi.org/10.11648/j.ajche.20210902.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajche.20210902.12},
      abstract = {Catalytic co-pyrolysis of biomass and plastic is a promising technology to their resource recovery and energy conversion. For the traditional technologies, the two feedstocks are mechanically mixed (MM) to the co-conversion reaction. However, there are disadvantages in the MM mode process, such as mixing nonuniformity and inconvenient transportation of feedstocks, poor heat and mass transfer during pyrolysis and low yield of effective products. To solve the above issues, a composite pyrolysis of biomass and plastic for high-quality fuel oil was innovatively studied in this paper at a lab-scale fixed bed reactor using HZSM-5 as a catalyst. Through procedures including mechanical mixing, hot pressing and crushing granulation, a composite molding (CM) sample was prepared. Then the optimal conditions for fuel oil production of the CM sample were explored, and under which conditions products distribution were compared with pyrolysis from the common MM sample. And possible mechanism for high-quality fuel oil generation of the composite pyrolysis was put forward through characterization of sample properties. Results show that, under the optimal reaction conditions of the composite pyrolysis, the yield of fuel oil was increased by 34.8% and the yield of aromatics was increased by 50.7% compared with the conventional pyrolysis from MM sample. Advantages of the composite pyrolysis could be explained by the enhanced contact between biomass and plastic particles, which promoted a stronger synergy between the two derived intermediates and effectively improved mass and heat transfer during pyrolysis process.},
     year = {2021}
    }
    

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  • TY  - JOUR
    T1  - Composite Pyrolysis of Biomass and Plastic for High-quality Fuel Oil over HZSM-5
    AU  - Dongxue Yu
    Y1  - 2021/05/24
    PY  - 2021
    N1  - https://doi.org/10.11648/j.ajche.20210902.12
    DO  - 10.11648/j.ajche.20210902.12
    T2  - American Journal of Chemical Engineering
    JF  - American Journal of Chemical Engineering
    JO  - American Journal of Chemical Engineering
    SP  - 39
    EP  - 46
    PB  - Science Publishing Group
    SN  - 2330-8613
    UR  - https://doi.org/10.11648/j.ajche.20210902.12
    AB  - Catalytic co-pyrolysis of biomass and plastic is a promising technology to their resource recovery and energy conversion. For the traditional technologies, the two feedstocks are mechanically mixed (MM) to the co-conversion reaction. However, there are disadvantages in the MM mode process, such as mixing nonuniformity and inconvenient transportation of feedstocks, poor heat and mass transfer during pyrolysis and low yield of effective products. To solve the above issues, a composite pyrolysis of biomass and plastic for high-quality fuel oil was innovatively studied in this paper at a lab-scale fixed bed reactor using HZSM-5 as a catalyst. Through procedures including mechanical mixing, hot pressing and crushing granulation, a composite molding (CM) sample was prepared. Then the optimal conditions for fuel oil production of the CM sample were explored, and under which conditions products distribution were compared with pyrolysis from the common MM sample. And possible mechanism for high-quality fuel oil generation of the composite pyrolysis was put forward through characterization of sample properties. Results show that, under the optimal reaction conditions of the composite pyrolysis, the yield of fuel oil was increased by 34.8% and the yield of aromatics was increased by 50.7% compared with the conventional pyrolysis from MM sample. Advantages of the composite pyrolysis could be explained by the enhanced contact between biomass and plastic particles, which promoted a stronger synergy between the two derived intermediates and effectively improved mass and heat transfer during pyrolysis process.
    VL  - 9
    IS  - 2
    ER  - 

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Author Information
  • Sichuan Institute of Building Research, Chengdu, China

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