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Synergistic Effects in Co-Gasification of Willow and Cedar Blended Char in CO 2 Media

Author

Listed:
  • Kenji Koido

    (Department of Wood Properties and Processing, Forestry and Forest Products Research Institute, 1 Matsunosato, Tsukuba 305-8687, Japan
    Faculty of Symbiotic Systems Science, Fukushima University, 1 Kanayagawa, Fukushima 960-1296, Japan
    Hydrogen Energy Research Institute, Faculty of Symbiotic Systems Science, Fukushima University, 1 Kanayagawa, Fukushima 960-1296, Japan)

  • Kenji Endo

    (Graduate School of Symbiotic Systems Science and Technology, Fukushima University, 1 Kanayagawa, Fukushima 960-1296, Japan)

  • Hidetsugu Morimoto

    (Graduate School of Bioresources, Mie University, 1577 Kurimamachiya-cho, Tsu 514-8507, Japan)

  • Hironori Ohashi

    (Faculty of Symbiotic Systems Science, Fukushima University, 1 Kanayagawa, Fukushima 960-1296, Japan
    Hydrogen Energy Research Institute, Faculty of Symbiotic Systems Science, Fukushima University, 1 Kanayagawa, Fukushima 960-1296, Japan)

  • Michio Sato

    (Faculty of Symbiotic Systems Science, Fukushima University, 1 Kanayagawa, Fukushima 960-1296, Japan)

Abstract

Willow is a promising biomass resource for addressing the challenges of securing stable domestic biomass fuels in Japan and utilising abandoned agricultural land. Among the willow species, Salix pet-susu Kimura KKD (known as ezonokinu willow, EW) stands out for its growth, high production, storage stability, production stability, and business stability. Previous studies have investigated fuel characterisation through gasification (co-gasification) of various biomass mixtures to enhance feedstock flexibility for gasifier commercialisation. However, the synergistic effects of co-gasification using fuels containing EW blended with Japanese cedar, a commonly planted forest species in Japan, remain unexplored. Therefore, this study explored CO 2 co-gasification with different blend ratios of EW/cedar blended char and evaluated the fuel characteristics for each blend ratio to elucidate the synergistic effects. The prepared char samples were utilised in the CO 2 gasification test with TG-DTA as the analyser. The results suggest that in the initial stages of the willow/cedar blended char co-gasification reaction, pore size and specific surface area significantly influence the reaction rate. Subsequent stages of the reaction are influenced by the promoting and inhibiting effects of inorganic components, which impact co-gasification. The synergy factor results for the willow/cedar blended char co-gasification suggest a reaction pathway.

Suggested Citation

  • Kenji Koido & Kenji Endo & Hidetsugu Morimoto & Hironori Ohashi & Michio Sato, 2024. "Synergistic Effects in Co-Gasification of Willow and Cedar Blended Char in CO 2 Media," Energies, MDPI, vol. 17(16), pages 1-16, August.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:16:p:4122-:d:1459155
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    References listed on IDEAS

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    1. Wei, Juntao & Gong, Yan & Guo, Qinghua & Chen, Xueli & Ding, Lu & Yu, Guangsuo, 2019. "A mechanism investigation of synergy behaviour variations during blended char co-gasification of biomass and different rank coals," Renewable Energy, Elsevier, vol. 131(C), pages 597-605.
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