化学工程Issue(1)：43-48,6.DOI:10.3969/j.issn.1005-9954.2016.01.010
鼓泡塔反应器的两级气泡模型参数研究
Two-bubble class model parameters in a bubble column
摘要
Abstract
To study the applicability of two-bubble class model in a bubble column at high viscosity,the technique of dynamic gas disengagement was used to assess the gas holdup in a plexiglass column with the inner diameter of 286 mm and the height of 7 200 mm.The effects of various superficial gas velocity and liquid viscosity (1 .2 × 1 0 -3-21 0.4 ×1 0 -3 Pa·s)on the total gas holdup,bubble holdup and rise velocities of large and small bubbles were considered.Experimental results showed that the total gas holdup increased with an increase of the superficial gas velocity.While the large bubble holdup was little affected by viscosity but dramatically influenced by superficial gas velocity.The small bubble holdup significantly decreased with the increasing of viscosity,but little affected by viscosity at high superficial gas velocities.The rising velocities of large and small bubbles decreased with an increase of viscosity.With the increasing of superficial gas velocity,the rising velocity of large bubbles significantly increased,however those of small bubbles slightly decreased.It was found that the large bubble diameters slightly increased with an increase of viscosity,but those for small bubbles dramatically decreased.关键词
鼓泡塔/气含率/两级气泡模型/气泡上升速度Key words
bubble column/gas holdup/two-bubble class model/bubble rising velocity分类
化学化工引用本文复制引用
石岩,黄子宾,程振民,杨涛,刘建坤,葛海龙,孟兆会,蒋立敬,方向晨..鼓泡塔反应器的两级气泡模型参数研究[J].化学工程,2016,(1):43-48,6.基金项目
国家自然科学基金资助项目（21076072，21306045）；华东理工大学交叉学科与重大项目培育基金（WA1113008）；中央高校基本科研业务费专项基金（222201314014）；科技部专项基金 （）
