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Studies on the Migration of Sulphur and Chlorine in the Pyrolysis Products of Floor and Furniture Joinery

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  • Małgorzata Kajda-Szcześniak

    (Department of Technologies and Installations for Waste Management, Faculty of Energy and Environmental Engineering, The Silesian University of Technology, Konarskiego 18, 44-100 Gliwice, Poland)

  • Waldemar Ścierski

    (Department of Technologies and Installations for Waste Management, Faculty of Energy and Environmental Engineering, The Silesian University of Technology, Konarskiego 18, 44-100 Gliwice, Poland)

Abstract

This article discusses research on the low-temperature pyrolysis of waste floor and furniture joinery as an example of chemical recycling. Pyrolysis was carried out at 425 °C to obtain solid, liquid, and gaseous products. In line with the circular economy concept, the waste was transformed into economical and environmentally friendly raw materials suitable for application. Research results related to the chemical composition and properties of pyrolysis products are shown, with particular emphasis on the migration process of acidic impurities, i.e., sulphur and chlorine. In some processes, the presence of such substances can be a problem. Research has shown the high potential for sulphur and chlorine migration in pyrolysis products. It was shown that for woodwork, the most sulphur was discharged with the pyrolysis gas and the least was immobilised in the oil fraction. For vinyl panels, more than 50% of the sulphur was immobilised in the char. Chlorine was immobilised mainly in the char and pyrolysis gas. A high chlorine content of 12.55% was found in the vinyl panel. At the same time, a high chlorine content was also found in the pyrolysis products of these panels. This value is several times higher than in wood-based waste.

Suggested Citation

  • Małgorzata Kajda-Szcześniak & Waldemar Ścierski, 2023. "Studies on the Migration of Sulphur and Chlorine in the Pyrolysis Products of Floor and Furniture Joinery," Energies, MDPI, vol. 16(21), pages 1-16, November.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:21:p:7446-:d:1274147
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    References listed on IDEAS

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    1. Kirchherr, Julian & Reike, Denise & Hekkert, Marko, 2017. "Conceptualizing the circular economy: An analysis of 114 definitions," Resources, Conservation & Recycling, Elsevier, vol. 127(C), pages 221-232.
    2. Dhyani, Vaibhav & Bhaskar, Thallada, 2018. "A comprehensive review on the pyrolysis of lignocellulosic biomass," Renewable Energy, Elsevier, vol. 129(PB), pages 695-716.
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