3-2-4 珪藻の水熱液化後固体残渣の酸化雰囲気下における反応性の解明

DOI

書誌事項

タイトル別名
  • 3-2-4 Reactivity of solid residue from hydrothermal liquefaction of diatom in oxidizing atmosphere

抄録

<p>The reactivity of solid residue derived from diatom (Fistulifera sp.) after hydrothermal liquefaction (HTL) reaction was investigated during oxidation in air at 553–1073 K. The activation energies of the HTL char derived from diatom combustion up to 1073 K with FWO and KAS methods was 120.0 kJ/mol and 115.3 kJ/mol, respectively, when the char conversion is 0.2–0.5 (i.e. pyrolysis). At higher char conversion (α ≥ 0.5), the activation energy monotonically increased as combustion reaction proceeds. The total amount of oxygen functional groups (OFG) substantially increased by oxidation at 553 and 573 K. By holding the reaction temperature at 553 K up to 60 min, the total OFG monotonically increased to 1.04 mmol/g. At 573 K, the amount of total OFG peaked 1.08 mmol/g at 30 min and decreased. The decomposition of carboxyl groups is dominant reaction for reduction in total OFG after 30 min at 573 K during oxidation (combustion).</p>

収録刊行物

詳細情報 詳細情報について

  • CRID
    1390001288046717824
  • NII論文ID
    130007428214
  • DOI
    10.20550/jietaikaiyoushi.27.0_86
  • 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

問題の指摘

ページトップへ