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Analysis of products from the pyrolysis and liquefaction of single plastics and waste plastic mixtures

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  • Williams, Paul T.
  • Slaney, Edward

Abstract

Waste plastics in the form of two examples of real world municipal solid waste plastics and a simulated mixture of municipal waste plastics were pyrolysed and liquefied under moderate temperature and pressure in a batch autoclave reactor. In addition, the five main polymers which constitute the majority of plastics occurring in European municipal solid waste comprising, polyethylene, polypropylene, polystyrene, polyethylene terephthalate and polyvinyl chloride were also reacted. The plastics were reacted under both a nitrogen (pyrolysis) and hydrogen pressure (liquefaction) and the yield and composition of products are reported. The hydrocarbon gases produced were mainly methane, ethane, propane and lower concentrations of alkene gases. A mainly oil product was produced with the mixed plastic waste with significant concentrations of aromatic compounds, including single ring aromatic compounds. The composition of the oils and gases suggested that there was significant interaction of the plastics when they were pyrolysed and liquefied as a mixture compared to the results expected from reactions of the single plastics.

Suggested Citation

  • Williams, Paul T. & Slaney, Edward, 2007. "Analysis of products from the pyrolysis and liquefaction of single plastics and waste plastic mixtures," Resources, Conservation & Recycling, Elsevier, vol. 51(4), pages 754-769.
    • Handle: RePEc:eee:recore:v:51:y:2007:i:4:p:754-769
    DOI: 10.1016/j.resconrec.2006.12.002
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    Cited by:

    1. Ana B. Cuevas & David E. Leiva-Candia & M. P. Dorado, 2024. "An Overview of Pyrolysis as Waste Treatment to Produce Eco-Energy," Energies, MDPI, vol. 17(12), pages 1-32, June.
    2. Augusto Fernando de Freitas Costa & Caio Campos Ferreira & Simone Patrícia Aranha da Paz & Marcelo Costa Santos & Luiz Gabriel Santos Moreira & Neyson Martins Mendonça & Fernanda Paula da Costa Assunç, 2023. "Catalytic Upgrading of Plastic Waste of Electric and Electronic Equipment (WEEE) Pyrolysis Vapors over Si–Al Ash Pellets in a Two-Stage Reactor," Energies, MDPI, vol. 16(1), pages 1-32, January.
    3. Bassey, Uduak & Sarquah, Khadija & Hartmann, Michael & Tom, Abasi-ofon & Beck, Gesa & Antwi, Edward & Narra, Satyanarayana & Nelles, Michael, 2023. "Thermal treatment options for single-use, multilayered and composite waste plastics in Africa," Energy, Elsevier, vol. 270(C).
    4. Zhang, Shiyu & Bie, Xuan & Qian, Zheng & Wu, Mengna & Li, Kaile & Li, Qinghai & Zhang, Yanguo & Zhou, Hui, 2024. "Synergistic interactions between cellulose and plastics (PET, HDPE, and PS) during CO2 gasification-catalytic reforming on Ni/CeO2 nanorod catalyst," Applied Energy, Elsevier, vol. 361(C).
    5. Farihahusnah Hussin & Mohamed Kheireddine Aroua & Mohd Azlan Kassim & Umi Fazara Md. Ali, 2021. "Transforming Plastic Waste into Porous Carbon for Capturing Carbon Dioxide: A Review," Energies, MDPI, vol. 14(24), pages 1-22, December.
    6. Mirkarimi, S.M.R. & Bensaid, S. & Chiaramonti, D., 2022. "Conversion of mixed waste plastic into fuel for diesel engines through pyrolysis process: A review," Applied Energy, Elsevier, vol. 327(C).
    7. Faisal Abnisa, 2023. "Enhanced Liquid Fuel Production from Pyrolysis of Plastic Waste Mixtures Using a Natural Mineral Catalyst," Energies, MDPI, vol. 16(3), pages 1-16, January.
    8. Rahman, Md Hafizur & Bhoi, Prakashbhai R. & Menezes, Pradeep L., 2023. "Pyrolysis of waste plastics into fuels and chemicals: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 188(C).
    9. Sogand Musivand & Maria Paola Bracciale & Martina Damizia & Paolo De Filippis & Benedetta de Caprariis, 2023. "Viable Recycling of Polystyrene via Hydrothermal Liquefaction and Pyrolysis," Energies, MDPI, vol. 16(13), pages 1-13, June.
    10. Roksana Muzyka & Grzegorz Gałko & Miloud Ouadi & Marcin Sajdak, 2023. "Impact of Plastic Blends on the Gaseous Product Composition from the Co-Pyrolysis Process," Energies, MDPI, vol. 16(2), pages 1-16, January.

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