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Pyrolysis of waste printed circuit board fragments: Response surface methodology optimization and effect of temperature on product characteristics

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  • Boro, Bibari
  • Tiwari, Pankaj

Abstract

The direct pyrolysis of waste printed circuit board (WPCB) produces metal-enriched char, while its polymer fraction converts to valuable gas and liquid fractions. However, the low amount of organic fraction produces less liquid yield. Thus, the current study is focused on optimizing the pyrolysis parameters (temperature, heating rate, and hold time) towards maximum liquid and minimum solid (char) yields using response surface methodology (RSM). The purpose of the objective functions is to completely remove the organic material and convert most of it to liquid fraction while producing metal-enriched char. The RSM study was employed using a face-centered central composite design (CCD). The responses were analyzed using the analysis of variance (ANOVA), and the quadratic model was found to be the best-fit model. The ‘temperature’ was found to be the most significant parameter. Hence, further experiments were conducted by varying the temperature, keeping the heating rate and hold time constant, and the obtained products were subjected to detailed characterization. The obtained liquid samples were rich in aromatics with high calorific value (∼35 MJ/kg) and produced gases like H2 and CH4. This study provides a comprehensive approach, integrating both qualitative and quantitative analyses, to optimize WPCB pyrolysis for enhanced resource recovery.

Suggested Citation

  • Boro, Bibari & Tiwari, Pankaj, 2025. "Pyrolysis of waste printed circuit board fragments: Response surface methodology optimization and effect of temperature on product characteristics," Energy, Elsevier, vol. 319(C).
  • Handle: RePEc:eee:energy:v:319:y:2025:i:c:s0360544225005341
    DOI: 10.1016/j.energy.2025.134892
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    References listed on IDEAS

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    1. Das, Sutapa & Goud, Vaibhav V., 2021. "RSM-optimised slow pyrolysis of rice husk for bio-oil production and its upgradation," Energy, Elsevier, vol. 225(C).
    2. Evangelopoulos, Panagiotis & Kantarelis, Efthymios & Yang, Weihong, 2017. "Experimental investigation of the influence of reaction atmosphere on the pyrolysis of printed circuit boards," Applied Energy, Elsevier, vol. 204(C), pages 1065-1073.
    3. Crama, Yves & Flippo, Olaf E. & van de Klundert, Joris & Spieksma, Frits C. R., 1997. "The assembly of printed circuit boards: A case with multiple machines and multiple board types," European Journal of Operational Research, Elsevier, vol. 98(3), pages 457-472, May.
    4. Gupta, Goutam Kishore & Mondal, Monoj Kumar, 2019. "Bio-energy generation from sagwan sawdust via pyrolysis: Product distributions, characterizations and optimization using response surface methodology," Energy, Elsevier, vol. 170(C), pages 423-437.
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