Hold-Up of Fine Particles in a Powder-Particle Spouted Bed

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Hold-up of cohesive fine particles in a powder-particle spouted bed under continuous fines feeding was investigated. Nine powders, aluminium hydroxide and aluminium oxide materials, ranging in particle size from 0.51 <I>μ</I>m to 3.5 <I>μ</I>m (Group C powders in Geldart's classification) were used. Silica sand particles of 920 <I>μ</I>m in average diameter (Group D powders in Geldart's classification) were used as coarse particles. Cohesive force of the fines was determined by the tensile strength method. The effects of superficial gas velocity, the feed rate of fines, the size of fines and cohesive force among fines on the hold-up of fines in the bed at a steady state were examined experimentally. It is found that fines hold-up is dominated by cohesive force and the effect of operating conditions upon the fines hold-up could be explained from the view point of the cohesive force.

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  • Journal of chemical engineering of Japan  

    Journal of chemical engineering of Japan 31(1), 61-66, 1998-02 

    The Society of Chemical Engineers, Japan

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各種コード

  • NII論文ID(NAID)
    10002064863
  • NII書誌ID(NCID)
    AA00709658
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00219592
  • NDL 記事登録ID
    4427703
  • NDL 雑誌分類
    ZP1(科学技術--化学・化学工業)
  • NDL 請求記号
    Z53-R395
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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