成形圧力の異なるバイオコークスの物理的・化学的変化に関する研究

DOI Web Site Web Site 参考文献10件
  • 木村 敬
    国立大学法人 岩手大学大学院連合農学研究科 日本砿研株式会社
  • 廣瀬 孝
    地方独立行政法人 青森県産業技術センター 工業総合研究所
  • 叶 旭君
    国立大学法人 弘前大学農学生命科学部
  • 園木 知典
    国立大学法人 弘前大学農学生命科学部
  • 小田 昭浩
    日本砿研株式会社
  • 張 樹槐
    国立大学法人 弘前大学農学生命科学部

書誌事項

タイトル別名
  • <b>Effects of molding pressures on physical and chemical changes in </b><b>Bio-coke produced from wood biomass </b>
  • セイケイ アツリョク ノ コトナル バイオコークス ノ ブツリテキ ・ カガクテキ ヘンカ ニ カンスル ケンキュウ

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<p>This study investigated the eff ects of molding pressures on the physical and chemical changes in the solid fuel ‘Bio-coke’. The Bio-coke samples used in the experiment were produced from two different types of wood biomass, i.e. cedar（Cryptomeria japonica）and beech（Fagus crenata Blume）, under different hot press molding conditions. The physical properties including the apparent density and compressive strength for each sample were measured, and the chemical composition was analyzed. The results indicated that as the molding pressure increased, the apparent density increased and gradually approached the real density, and it finally reached the maximum level at the molding pressure of 30 MPa. The compressive strength also increased with the molding pressure, and the increase became more dramatic after the molding pressure exceeded 20 MPa. On the other hand, the matrix polysaccharide and Klason lignin initially decreased as the molding pressure increased. Meanwhile, the organic compounds in hot-water and organic solvent extracts increased. However, when the molding pressure approached or exceeded 20 MPa, the matrix polysaccharide started to increase due to the degradation of crystalline cellulose. The difference in the physical properties between cedar and beech might have originated from the difference in the content of matrix polysaccharide, which plays an important role in binding crystalline cellulose and Klason lignin.</p>

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