Mathematical modeling for height of absorption region in spray tower for limestone-gypsum wet flue gas desulfurization

被引：0
|
作者：
机构：
[1] Zhu, Jie
[2] Ye, Shichao
[3] Wu, Zhenyuan
[4] Bai, Jie
[5] Zheng, Yijun
来源：
Ye, Shichao | 1600年 / Materials China卷 / 65期
关键词：
Calculation models - Desulfurization efficiency - Height - Mass transfer rate - Operating parameters - Spray tower - Superficial gas velocities - Wet flue gas desulfurization;
D O I：
10.3969/j.issn.0438-1157.2014.08.006
中图分类号：
学科分类号：
摘要：
Specific surface area and mass transfer rate in spray tower were studied by considering the forces acting on a droplet. Absorption region was divided into accelerating segment and constant speed segment, and a segmentation calculation model for the height of absorption region was developed, which was verified by the data of four industrial desulfurization systems. The effects of operating parameters on the height of absorption region were investigated. The results show that height of absorption region decreases with the decrease of spray density and pH value of absorbent, and increases with the decrease of droplet diameter, superficial gas velocity and inlet SO2 concentration. The desulfurization efficiency increases with the height of absorption region. When the desulfurization efficiency reaches above 90%, the height of absorption region only has a slightly influence on the efficiency. © All Rights Reserved.
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