Removal characteristics of sulfuric acid aerosols from coal-fired power plants

被引：39

作者：

Pan, Danping ^{[1
]}

Yang, Linjun ^{[1
]}

Wu, Hao ^{[1
]}

Huang, Rongting ^{[1
]}

机构：

[1] Southeast Univ, Minist Educ, Key Lab Energy Thermal Convers & Control, Nanjing, Jiangsu 210096, Peoples R China

来源：

JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION | 2017年 / 67卷 / 03期

基金：

中国国家自然科学基金;

关键词：

SO3; EMISSIONS; TRIOXIDE;

D O I：

10.1080/10962247.2016.1202155

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

With increasing attention on sulfuric acid emission, investigations on the removal characteristics of sulfuric acid aerosols by the limestone gypsum wet flue gas desulfurization (WFGD) system and the wet electrostatic precipitator (WESP) were carried out in two coal-fired power plants, and the effects of the WFGD scrubber type and the flue gas characteristics were discussed. The results showed that it was necessary to install the WESP device after desulfurization, as the WFGD system was inefficient to remove sulfuric acid aerosols from the flue gas. The removal efficiency of sulfuric acid aerosols in the WFGD system with double scrubbers ranged from 50% to 65%, which was higher than that with a single scrubber, ranging from 30% to 40%. Furthermore, the removal efficiency of WESP on the sulfuric acid aerosols was from 47.9% to 52.4%. With increased concentrations of SO3 and particles in the flue gas, the removal efficiencies of the WFGD and the WESP on the sulfuric acid aerosols were increased.

引用

页码：352 / 357

页数：6

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