FLOW CHARACTERISTICS OF COUNTERCURRENT BUBBLE COLUMN WITH PERFORATED DRAFT TUBE

被引：19
|
作者：
BANDO, Y [1 ]
NISHIMURA, M [1 ]
SOTA, H [1 ]
SUZUKI, S [1 ]
KAWASE, N [1 ]
机构：
[1] NIPPON SHARYO SEIZO LTD,ATSUTA KU,NAGOYA 45651,JAPAN
来源：
CHEMICAL ENGINEERING SCIENCE | 1992年 / 47卷 / 13-14期
关键词：
BUBBLE COLUMN; COUNTERCURRENT; DRAFT TUBE; FLOW PATTERN; GAS HOLDUP; VOLUMETRIC COEFFICIENT;
D O I：
10.1016/0009-2509(92)85047-F
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
In order to improve the performance of the bubble column, the countercurrent bubble column with perforated draft tube was considered, and the flow characteristics were experimentally examined. A part of gas and liquid radially flowed through the holes of the draft tube and large bubbles were subdivided into small ones. The gas holdup and volumetric coefficient showed a maximum with respect to the draft tube diameter, and increased with increasing draft tube length. The ratios of the gas holdup and volumetric coefficient of the column with perforated draft tube to those of the column without draft tube increased with increasing liquid downflow velocity and decreasing gas velocity. The countercurrent bubble column with perforated draft tube was found to be effective in increasing the gas holdup and volumetric coefficient for the viscous liquid.
引用
收藏
页码：3371 / 3378
页数：8
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