3-7-2 ガス化の進行に伴うバイオマスチャー細孔の発達機構

DOI

書誌事項

タイトル別名
  • 3-7-2 Development of micro- and mesopores in biomass-derived char along with carbon conversion

抄録

<p>Many studies have been performed on the gasification rate of char for biomass-derived char. However, the gasification rate varies greatly with the experimental device and the type of biomass, even if the same gasification temperature is adopted. Further, the mechanism of pore development on the biochar surface has been barely studied. The present study investigated in detail the gasification rate of biochar (Douglas fir char) in the presence of water vapor (H2O) or CO2 using the same experimental device. The results showed that (1) the gasification rate of the biochar was approximately 10 times higher under the H2O atmosphere than under CO2, (2) the specific surface area of the microand mesopores on the biochar surface increased as the gasification proceeded, and the increase in the specific surface area during H2O gasification was similar to that during CO2 gasification, for the carbon conversion rates of 0.2 - 0.5, and (3) the active site between the gasifying agent and the carbon on the char surface resulted in a higher reactivity during H2O gasification than during CO2 gasification..</p>

収録刊行物

詳細情報 詳細情報について

  • CRID
    1390001205814445184
  • NII論文ID
    130005863621
  • DOI
    10.20550/jietaikaiyoushi.26.0_110
  • ISSN
    24238325
    24238317
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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