EFFECT OF PACKED BED ON MASS TRANSFER IN EXTERNAL-LOOP AIRLIFT BUBBLE COLUMN

この論文にアクセスする

この論文をさがす

著者

    • OKADA Kenji
    • Department of Chemical Technology, Kurashiki University of Science and the Arts

抄録

The influence of packed bed set in the riser section on the liquid-side volumetric mass transfer coefficient (<I>K</I><SUB>L</SUB><I>a</I><SUB>R</SUB>) in an external-loop airlift bubble column was examined with water, 20 wt% glycerol, 10 wt% ethanol and 0.3 wt% CMC aqueous solutions. The <I>K</I><SUB>L</SUB><I>a</I><SUB>R</SUB> was determined by the measurement of time-dependent oxygen concentration dissolved in the liquids. Bubble size, bubble rise velocity and gas holdup in the riser were measured to examine the effect of the packed bed using an optical fiber two-phase flow system. The presence of the packed bed in the riser increased the <I>K</I><SUB>L</SUB><I>a</I><SUB>R</SUB> values for the liquids used. This was associated with the increase in the specific gas-liquid interfacial area due to bubble breakage by the packed bed. In addition, a correlation equation for <I>K</I><SUB>L</SUB><I>a</I><SUB>R</SUB> was proposed for both types of airlift bubble columns with and without the packed bed.

収録刊行物

  • Journal of chemical engineering of Japan

    Journal of chemical engineering of Japan 29(4), 582-587, 1996-08-30

    The Society of Chemical Engineers, Japan

参考文献:  13件中 1-13件 を表示

各種コード

  • NII論文ID(NAID)
    10003814807
  • NII書誌ID(NCID)
    AA00709658
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00219592
  • データ提供元
    CJP書誌  J-STAGE 
ページトップへ