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Impact of Plastic Blends on the Gaseous Product Composition from the Co-Pyrolysis Process

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  • Roksana Muzyka

    (Department of Air Protection, Faculty of Energy and Environmental Engineering, Silesian University of Technology in Gliwice, 44-100 Gliwice, Poland)

  • Grzegorz Gałko

    (Institute of Energy and Fuel Processing Technology, 1 Zamkowa, 41-803 Zabrze, Poland)

  • Miloud Ouadi

    (School of Chemical Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK)

  • Marcin Sajdak

    (Department of Air Protection, Faculty of Energy and Environmental Engineering, Silesian University of Technology in Gliwice, 44-100 Gliwice, Poland)

Abstract

The co-pyrolysis of various biomasses mixed with two types of plastic waste was investigated in this study. Mixture M1 consisted of 30% m/m styrene–butadiene rubber (SBR), 40% m/m polyethylene terephthalate (PET), and 30% m/m polypropylene (PP). M2 consisted of 40% m/m PET, 30% m/m PP, and 30% m/m acrylonitrile–butadiene–styrene copolymer (ABS). The SBR, ABS, and PP used in this study were from the automotive industry, while the PET originated from scrap bottles. Co-pyrolysis was performed using wood biomass, agricultural biomass, and furniture trash. Thermal treatment was performed on samples from room temperature to 400 or 600 °C at a heating rate of 10 °C/min under N 2 at a flow rate of 3 dm 3 /min. Based on the findings of the experiments, an acceptable temperature was found for the fixed-bed pyrolysis of biomass–plastic mixtures with varying ratios, and the raw materials were pyrolyzed under the same conditions. The composition of the derived gaseous fraction was investigated. The co-pyrolysis studies and variance analysis revealed that combining biomass with plastic materials had a good influence on the gaseous fraction, particularly in the presence of 6.6–7.5% v / v hydrogen and a lower heating value of 15.11 MJ/m 3 . This type of gaseous product has great potential for use as a replacement for coke oven gas in metallurgy and other applications.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:2:p:947-:d:1035772
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    References listed on IDEAS

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    1. 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.
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