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Influence of Activated Carbon Granulometry on H 2 Purification in Glycerol Reforming Syngas: Adsorption and Kinetic Analysis

Author

Listed:
  • Rocio Maceiras

    (Defense University Center at Spanish Naval Academy, University of Vigo, Plaza de España 2, 36920 Marín, Spain)

  • Jorge Feijoo

    (Defense University Center at Spanish Naval Academy, University of Vigo, Plaza de España 2, 36920 Marín, Spain)

  • Leticia Perez-Rial

    (Defense University Center at Spanish Naval Academy, University of Vigo, Plaza de España 2, 36920 Marín, Spain)

  • Miguel A. Alvarez-Feijoo

    (Defense University Center at Spanish Naval Academy, University of Vigo, Plaza de España 2, 36920 Marín, Spain)

  • Naser Eslami

    (DTU Sustain Department, Technical University of Denmark, 2800 Kongens Lyngby, Denmark)

Abstract

This study investigates the adsorption performance of granular activated carbon (GAC) and pelletized activated carbon (PAC) for the purification of syngas produced from glycerol reforming, focusing on the removal of CO 2 , CO, and CH 4 . The adsorption process was studied at two different flow rates (0.5 L/min and 1 L/min) to assess the impact of particle size and gas flow rate on adsorption capacity. The results indicate that GAC exhibits superior multi-gas adsorption, particularly at lower flow rates, effectively capturing CO 2 , CO, and CH 4 , while PAC exhibits lower adsorption performance. Kinetic analysis revealed that the pseudo-second-order and Avrami models fit well with both adsorbents, though GAC aligns more closely with the Avrami model, reflecting its multi-step adsorption mechanism and greater pore diffusion efficiency. These findings highlight the importance of adsorbent size and flow rate in optimizing hydrogen purification processes, with GAC emerging as a highly efficient adsorbent for industrial-scale syngas treatment.

Suggested Citation

  • Rocio Maceiras & Jorge Feijoo & Leticia Perez-Rial & Miguel A. Alvarez-Feijoo & Naser Eslami, 2024. "Influence of Activated Carbon Granulometry on H 2 Purification in Glycerol Reforming Syngas: Adsorption and Kinetic Analysis," Energies, MDPI, vol. 17(23), pages 1-22, November.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:23:p:6011-:d:1532802
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    References listed on IDEAS

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    1. Guo, Baihe & Zhang, Jingchao & Wang, Yanlin & Qiao, Xiaolei & Xiang, Jun & Jin, Yan, 2023. "Study on CO2 adsorption capacity and kinetic mechanism of CO2 adsorbent prepared from fly ash," Energy, Elsevier, vol. 263(PB).
    2. Anna Król & Monika Gajec & Jadwiga Holewa-Rataj & Ewa Kukulska-Zając & Mateusz Rataj, 2024. "Hydrogen Purification Technologies in the Context of Its Utilization," Energies, MDPI, vol. 17(15), pages 1-38, August.
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