The Openning Fraction of Gas Distributor and Back-Mixing of Liquid in Gas Bubble Column

莫之光; 梁应昌; 李遴榷; 范琼嘉; 陈德峻; 傅万飞

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The Openning Fraction of Gas Distributor and Back-Mixing of Liquid in Gas Bubble Column

更新时间：2025-12-16

- The Openning Fraction of Gas Distributor and Back-Mixing of Liquid in Gas Bubble Column
- CIESC Journal Issue 2, (1979)
- 作者机构：
  
  华南工学院化学工程硏究室,华南工学院化学工程硏究室,华南工学院化学工程硏究室,华南工学院化学工程硏究室,华南工学院化学工程硏究室,华南工学院化学工程硏究室
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 December 1979，
  
  Published：25 December 1979
- 稿件说明：
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莫之光, 梁应昌, 李遴榷, et al. The Openning Fraction of Gas Distributor and Back-Mixing of Liquid in Gas Bubble Column[J]. CIESC Journal, 1979, (2).
DOI：

莫之光, 梁应昌, 李遴榷, et al. The Openning Fraction of Gas Distributor and Back-Mixing of Liquid in Gas Bubble Column[J]. CIESC Journal, 1979, (2). DOI：

摘要

考察鼓泡塔内鼓泡现象

发现气流经过小孔的速度（称为小孔气速）需大于某一临界值。计算并比较了气流通过多孔板的干板压力降和表面能损耗

提出计算此临界气速的公式和确定最大开孔率的方法。用脉冲注入法测定鼓泡塔液体停留时间分布

提出非整数串连混合器模型

推导出其停留时间分布曲线方程式

计算结果与实验数据相符。并验证了Towell的轴向分散系数的计算方法。

Abstract

Performance of gas bubble column has been investigated.It is found that the velocity of the flow of gas through the orifice

must be greater than a critical value

uoc. Pressure drop accross the orifice-plate and surface energy required for bubble formation are estimated. The equations for calculation of critical velocity

uoc and the maximum openning fraction of gas distributor are proposed. Pulse-tracer technique has been used for determination of residence time distribution (RTD) of liquid in bubble column. A non-integer number of tank-in-series model is suggested

and RTD function has been derived. It is shown that RTD function derived fit well the experimental data. Towells equation is recommended to predict the axial dispersion coefficeint of liquid in gas bubble column.

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