Study on the Removal of Mercury from Municipal Sludge Incineration Flue Gas by Calcium Bromide

YE Zhirong; WANG Lihua; LU Zhengrong; DONG Yuhang; WANG Fei; CHI Yong

doi:10.19805/j.cnki.jcspe.2025.240129

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Study on the Removal of Mercury from Municipal Sludge Incineration Flue Gas by Calcium Bromide

更新时间：2026-10-10

- Study on the Removal of Mercury from Municipal Sludge Incineration Flue Gas by Calcium Bromide
- Chinese Journal of Power Engineering Vol. 45, Issue 6, Pages: 924-930(2025)
- 作者机构：
  
  1. 浙江大学能源工程学院,浙江,杭州,310027
  2. 上海城投污水处理有限公司,上海,201203
- 作者简介：
- 基金信息：
- DOI：10.19805/j.cnki.jcspe.2025.240129
  CLC：
- Online First：16 June 2025，
  
  Published：2025
- 稿件说明：
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叶志榕,王丽花,陆峥嵘,董宇航,王飞,池涌. 溴化钙对市政污泥焚烧烟气中汞的脱除研究动力工程学报, 2025, 45(6): 924-930 https://doi.

org/10.19805/j.cnki.jcspe.2025.240129
叶志榕,王丽花,陆峥嵘,董宇航,王飞,池涌. 溴化钙对市政污泥焚烧烟气中汞的脱除研究动力工程学报, 2025, 45(6): 924-930 https://doi. DOI： 10.19805/j.cnki.jcspe.2025.240129.

org/10.19805/j.cnki.jcspe.2025.240129 DOI：

摘要

为探究溴化钙在市政污泥焚烧烟气中的脱汞效果

在实验室和工程现场开展了溴化钙脱汞试验。结果表明:添加溴化钙能有效氧化烟气中的单质汞

在800、900和1 000 ℃下

当溴汞化学当量比为2 000时

单质汞氧化率能达到80%

并且添加溴化钙对NO

和SO

排放特性影响较小

但添加溴化钙会使HCl排放量有所上升

特别是在溴汞化学当量比超过2 000时

HCl转化率急剧上升;当溴汞化学当量比为1 000和2 000时

烟气中气态汞脱除率能达到60%和73%

且添加溴化钙对常规污染物排放(NO

、SO

、HCl和烟尘)和锅炉运行状态没有影响。

Abstract

To investigate the mercury removal effect of calcium bromide in municipal sludge incineration flue gas

mercury removal experiments using calcium bromide were conducted both in the laboratory and at the engineering site. Results show that the addition of calcium bromide can effectively oxidize elemental mercury in the flue gas. At 800

900 and 1 000 ℃

when the chemical equivalence ratio of bromine to mercury is 2 000

the oxidation rate of elemental mercury can reach 80%. Moreover

the addition of calcium bromide has a minor effect on the emission characteristics of NO

and SO

but it causes the increase in HCl emissions

especially when the chemical equivalence ratio of bromine to mercury exceeds 2 000

the conversion rate of HCl

rises sharply. When the chemical equivalence ratio of bromine to mercury is 1 000 and 2 000

the removal rate of gaseous mercury in the flue gas can reach 60% and 73% respectively

and the addition of calcium bromide has no effect on the emission of conventional pollutants (NO

HCl

and particulate matter) and the operation of the boiler.

关键词

Keywords

references

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