Dispersed‐Phase Holdup and Characteristic Velocity in an Agitated‐Pulsed Solvent Extraction Column,Chemical Engineering & Technology

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Dispersed‐Phase Holdup and Characteristic Velocity in an Agitated‐Pulsed Solvent Extraction Column
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2021-01-20 , DOI: 10.1002/ceat.202000534
Boren Tan _{1,

2} , Longxiang Li _{2,

3} , Minle Lan _{1,

2} , Yong Wang ₁ , Tao Qi ₁

Affiliation

The agitated‐pulsed column (APC) is expected to exhibit good transfer. The dispersed‐phase holdup and characteristic velocity were measured using a 25‐mm diameter APC. The holdup declined at first and then escalated with the increase of pulsation intensity which was in contrary to the trend of the characteristic velocity change. The pulsation intensity corresponding to minimum holdup was found, and it increased with higher agitation speed. The interfacial area was also calculated. Correlations were developed for the holdup and characteristic velocity prediction within 5.34 % and 9.54 % deviation, respectively. Flooding lines were calculated by the characteristic velocity method and operating regimes were determined by the experimental results.

中文翻译：

搅拌脉冲溶剂萃取塔中的分散相滞留量和特征速度

搅拌脉冲色谱柱（APC）有望表现出良好的传递性。使用直径为25 mm的APC测量分散相的保持率和特征速度。滞留率首先下降，然后随着脉动强度的增加而增加，这与特征速度变化的趋势相反。发现了与最小滞留量相对应的脉动强度，并且其随着较高的搅拌速度而增加。还计算了界面面积。滞留率和特征速度预测的相关性分别在5.34％和9.54％的偏差范围内。通过特征速度法计算出洪水线，并通过实验结果确定了运行方式。

更新日期：2021-03-19

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