Numerical simulation of the simultaneous removal of particulate matter in a wet flue gas desulfurization system

被引：16
|
作者：
Huang, Yueqi [1 ]
Zheng, Chenghang [1 ]
Li, Qingyi [1 ]
Zhang, Jun [1 ]
Guo, Yishan [1 ]
Zhang, Yongxin [1 ]
Gao, Xiang [1 ]
机构：
[1] Zhejiang Univ, Natl Environm Protect Coal Fired Air Pollut Contr, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R China
来源：
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | 2020年 / 27卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Simultaneous removal; PMs; Numerical simulation; Coal-fired power plant; SIMULTANEOUS PARTICLE COAGULATION; HETEROGENEOUS VAPOR CONDENSATION; MONTE-CARLO-SIMULATION; FINE PARTICLES; POWER-PLANTS; INDUSTRY; EMISSION; PERFORMANCE; OPTIMIZATION; POLLUTANTS;
D O I：
10.1007/s11356-019-06773-9
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The particulate matter (PM) could be simultaneously removed during the wet flue gas desulfurization (WFGD) process. To analyze the underlying mechanism and removal efficiency, the PM removal process in a desulfurization system was numerically simulated based on the population balance model and general dynamics equation in this study. The equation was solved using the fixed-step Monte Carlo method to determine the PM removal characteristics under different working conditions (such as spray intensity, velocity of the flue gas, and layers of slurry spray). When the flue gas velocity decreased from 7 to 3 m/s, the removal efficiency increased from 90.93 to 93.52%, and when the mean geometric droplet size decreased from 3 to 1 mm, the removal efficiency increased from 67.18 to 99.14%. Besides, large diameter PM was more easily removed by the desulfurization system. Thus, the numerical simulation method was proven to be feasible by comparing these results with field measurements of a WFGD system in a coal-fired power plant.
引用
收藏
页码：1598 / 1607
页数：10
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