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Gas Hold-Up and Volumetric Liquid-Phase Mass Transfer Coefficient In Solid-Suspended Bubble Columns With Draught Tube | ||
| Engineering and Technology Journal | ||
| Article 1, Volume 28, Issue 7, 2010, Pages 1464-1483 PDF (402.11 K) | ||
| DOI: 10.30684/etj.28.7.16 | ||
| Author | ||
| Ali Abdul-Rahman N. Jasim Alazzi | ||
| Abstract | ||
| The solid suspended-bubble columns with draught tube are widely used as a threephase slurry reactor in industrial chemical process such as absorption, biochemical reactions, coal liquefaction. etc. To design such a column the average gas holdup ( g e ) and the volumetric liquid-phase mass transfer coefficient (KLa) should be known. This study includes the effect of gas velocity, liquid-phase properties, solid-particles concentration and the static liquid height on both ( g e ) and (KLa). It was found that both ( g e ) and (KLa) increase with increasing gas velocity and decrease with increasing solid particles concentration, static liquid height, viscosity and surface tension of liquid-phase. | ||
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