[1]钟秦.湿法烟气脱硫的理论和实验研究(IV)——高雷诺数时的传质经验方程[J].南京理工大学学报(自然科学版),1999,(03):69-72.
 ZhongQin.Theoretical and Experimental Investigations of Wet Flue Gas Desulfurization (Ⅳ) Empirical Correlations of Mass Transfer at High Reynolds Numbers[J].Journal of Nanjing University of Science and Technology,1999,(03):69-72.
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湿法烟气脱硫的理论和实验研究(IV)——高雷诺数时的传质经验方程()
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
1999年03期
页码:
69-72
栏目:
出版日期:
1999-06-30

文章信息/Info

Title:
Theoretical and Experimental Investigations of Wet Flue Gas Desulfurization (Ⅳ) Empirical Correlations of Mass Transfer at High Reynolds Numbers
作者:
钟秦
南京理工大学化工学院, 南京210094
Author(s):
ZhongQin
School of Chemical Engineering,NUST,Nanjing 210094
关键词:
质量传递 经验方程 雷诺数 烟气脱硫 湿壁塔式反应器
Keywords:
mass t ransfer empirical correlations Reynolds number flue gas desulfurizat ion w et ted-w all column reactor
分类号:
X511
摘要:
在中试湿壁塔中, 采用SO2/ NaOH 和空气/ H2O 系统, 实验研究了50 ℃和高雷诺数时的气液传质速率。实验结果表明, 气相雷诺数( ReG ) 和液相雷诺数 ( ReL ) 分别在7 600~ 13 500 和4 700~ 12 000 的范围内, 气相舍伍德数( ShG = ( kG acd i) / DG ) 分别与ReG 的1.04 次方和ReL 的0.207 次方成正比。ShL 分别与ReG 的0.64 次方和ReL 的0.438 次方成正比。高雷诺数时的液膜波动提高了相界面积和湍流程度, 从而导致气相和液相传质系数的提高。
Abstract:
In a pilotOscale wettedOw all column, the rate of gas and liquid phase mass t ransfer w as investigated by using SO2/ NaOH and Air/H2O react ion systems at 50 ℃ and high Reynolds numbers. The experimental results show that in g as phase Reynolds numbers ( ReG ) range f rom 7 600 to 13 500 and liquid phase Reynolds numbers ( ReL ) from 4 700 to 12 000, g as phase Sherw ood number ( Sh G ) depends on ReG and ReL raised to the pow er of 1. 04 and the pow er of 0. 207, respectively; liquid phase Sherwood number ( Sh L ) depends on ReG and ReL raised to the power of 0. 64 and the pow er of 0. 438, respect ively. The w aves on the liquid film at high Reynolds numbers increase interfacial area and turbulence, and lead to increasing mass t ransfer coeff icients of gas phase and liquid phase.

参考文献/References:

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备注/Memo

备注/Memo:
国家留学基金委资助项目,江苏省青年科技基金
钟 秦 男 35 岁 教授
更新日期/Last Update: 2013-03-29