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Design and Operation of a Modern Polish Plant for Plastic Waste Recycling through the Degradative Depolymerization Process. A Case Study

Author

Listed:
  • Andrzej Duda

    (Faculty of Mechanical Engineering, Cracow University of Technology, al. Jana Pawła II 37, 31-864 Kraków, Poland)

  • Arkadiusz Fenicki

    (GreenTech Polska S.A., 01-242 Warsaw, Poland)

  • Patryk Molski

    (GreenTech Polska S.A., 01-242 Warsaw, Poland)

  • Elżbieta Szostak

    (Faculty of Chemistry, Jagiellonian University, ul. Gronostajowa 2, 30-387 Kraków, Poland)

  • Piotr Duda

    (Faculty of Mechanical Engineering, Cracow University of Technology, al. Jana Pawła II 37, 31-864 Kraków, Poland)

Abstract

The paper describes an installation for the degradative depolymerization of polyolefin materials obtained from wastes, hereinafter also referred to as depolymerization for simplicity. The plant, on an industrial scale, is one of the few operating in Poland. However, it is one of the most modern plants in this industry. Design solutions, construction of particular technological lines, compliance with national and EU regulations and the high level of process safety were described in this paper as well as compared to other plants of this type in Poland. Different solutions were presented in drawings and photos of the plant and in fragmentary technological diagrams. The types of waste and the methods of their processing by the plant were also characterized in accordance with the applicable regulations. The waste throughput is from 2000 to 4000 kg/h, while the efficiency of the depolymerization installation itself is 1500 kg/h. The industrial-scale depolymerization process is carried out in one or two stages: by homogenization (extraction) at a temperature up to 200 °C and depolymerization at temperatures up to 400 °C. The obtained products (energy goods) are sold for further processing. The processes, devices and methods are characterized by novel, innovative solutions, covered by a number of patents, which are also described below. The advantage of the presented technology is the substantial simplification of the process and thereby a considerable reduction in investment costs. Among others, the processes of distillation and rectification (low- and negative-pressure) were abandoned.

Suggested Citation

  • Andrzej Duda & Arkadiusz Fenicki & Patryk Molski & Elżbieta Szostak & Piotr Duda, 2020. "Design and Operation of a Modern Polish Plant for Plastic Waste Recycling through the Degradative Depolymerization Process. A Case Study," Energies, MDPI, vol. 13(24), pages 1-18, December.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:24:p:6620-:d:462537
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    References listed on IDEAS

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    1. Munir, Dureem & Irfan, Muhammad F. & Usman, Muhammad R., 2018. "Hydrocracking of virgin and waste plastics: A detailed review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 90(C), pages 490-515.
    2. Hassan, H. & Hameed, B.H. & Lim, J.K., 2020. "Co-pyrolysis of sugarcane bagasse and waste high-density polyethylene: Synergistic effect and product distributions," Energy, Elsevier, vol. 191(C).
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    Cited by:

    1. Elżbieta Szostak & Piotr Duda & Andrzej Duda & Natalia Górska & Arkadiusz Fenicki & Patryk Molski, 2020. "Characteristics of Plastic Waste Processing in the Modern Recycling Plant Operating in Poland," Energies, MDPI, vol. 14(1), pages 1-17, December.
    2. Wieslaw Lyskawinski & Mariusz Baranski & Cezary Jedryczka & Jacek Mikolajewicz & Roman Regulski & Dariusz Sedziak & Krzysztof Netter & Dominik Rybarczyk & Dorota Czarnecka-Komorowska & Mateusz Barczew, 2021. "Tribo-Electrostatic Separation Analysis of a Beneficial Solution in the Recycling of Mixed Poly(Ethylene Terephthalate) and High-Density Polyethylene," Energies, MDPI, vol. 14(6), pages 1-13, March.

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