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Physical and Energy Properties of Fuel Pellets Produced from Sawdust with Potato Pulp Addition

Author

Listed:
  • Sławomir Obidziński

    (Department of Agri-Food Engineering and Environmental Management, Bialystok University of Technology, Wiejska 45E, 15-351 Białystok, Poland)

  • Paweł Cwalina

    (Department of Agri-Food Engineering and Environmental Management, Bialystok University of Technology, Wiejska 45E, 15-351 Białystok, Poland)

  • Małgorzata Kowczyk-Sadowy

    (Department of Agri-Food Engineering and Environmental Management, Bialystok University of Technology, Wiejska 45E, 15-351 Białystok, Poland)

  • Aneta Sienkiewicz

    (Department of Agri-Food Engineering and Environmental Management, Bialystok University of Technology, Wiejska 45E, 15-351 Białystok, Poland)

  • Małgorzata Krasowska

    (Department of Agri-Food Engineering and Environmental Management, Bialystok University of Technology, Wiejska 45E, 15-351 Białystok, Poland)

  • Joanna Szyszlak-Bargłowicz

    (Department of Power Engineering and Transportation, Faculty of Production Engineering, University of Life Sciences in Lublin, Głęboka 28, 20-612 Lublin, Poland)

  • Grzegorz Zając

    (Department of Power Engineering and Transportation, Faculty of Production Engineering, University of Life Sciences in Lublin, Głęboka 28, 20-612 Lublin, Poland)

  • Tomasz Słowik

    (Department of Power Engineering and Transportation, Faculty of Production Engineering, University of Life Sciences in Lublin, Głęboka 28, 20-612 Lublin, Poland)

  • Jacek Mazur

    (Department of Food Engineering and Machines, Faculty of Production Engineering, University of Life Sciences in Lublin, Głęboka 28, 20-612 Lublin, Poland)

  • Marek Jankowski

    (Wood Production Plant PANBAH Marek Jankowski, 12-203 Trzonki, Poland)

Abstract

This paper presents the findings of a study of the pelleting process of pine sawdust with the addition of waste in the form of potato pulp (as a natural binder), in the context of producing fuel pellets. The process of pelleting was carried out for sawdust and for a mixture of sawdust and potato pulp (10, 15, 20, and 25%). The highest moisture content was obtained in the case of pellets produced from a mixture of straw with a 25% potato pulp content, i.e., 26.54% (with a potato pulp moisture content of 85.08%). Increasing the potato pulp content in a mixture with sawdust from 10 to 25% reduced the power demand of the pelletizer by approx. 20% (from 7.35 to 5.92 kW). The obtained density values for pellets made from a mixture of sawdust and potato pulp (over 1000 kg∙m −3 ) with a potato pulp content of 10% make it possible to conclude that the obtained pellets meet the requirements of the ISO 17225-2:2021-11 standard. Increasing the potato pulp content from 0 to 25% caused a slight decrease in the heat of combustion, i.e., from 20.45 to 20.32 MJ∙kg −1 , as well as in the calorific value, from 19.02 to 18.83 MJ∙kg −1 (both for dry sawdust matter and the mixture). The results of the laboratory tests were used to verify the densification process of mixtures of sawdust and potato pulp under industrial conditions at the PANBAH plant, using pelleting mixtures with a 5%, 10%, and 25% content of potato pulp. Industrial research also confirmed that the use of the addition of potato pulp in a mixture with sawdust significantly reduces the power demand of the pelletizer, and it also increases the kinetic strength of the obtained pellets.

Suggested Citation

  • Sławomir Obidziński & Paweł Cwalina & Małgorzata Kowczyk-Sadowy & Aneta Sienkiewicz & Małgorzata Krasowska & Joanna Szyszlak-Bargłowicz & Grzegorz Zając & Tomasz Słowik & Jacek Mazur & Marek Jankowski, 2024. "Physical and Energy Properties of Fuel Pellets Produced from Sawdust with Potato Pulp Addition," Energies, MDPI, vol. 17(16), pages 1-31, August.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:16:p:3960-:d:1453532
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    References listed on IDEAS

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    1. Urte Stulpinaite & Vita Tilvikiene & Egidijus Zvicevicius, 2023. "Co-pelletization of Hemp Residues and Agricultural Biomass: Effect on Pellet Quality and Stability," Energies, MDPI, vol. 16(16), pages 1-12, August.
    2. Peng, Jianghong & Bi, Xiaotao T. & Lim, C. Jim & Peng, Hanchao & Kim, Chang Soo & Jia, Dening & Zuo, Haibin, 2015. "Sawdust as an effective binder for making torrefied pellets," Applied Energy, Elsevier, vol. 157(C), pages 491-498.
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