典型碱基吸收剂对燃煤烟气中SO<sub>3</sub>的脱除性能实验

李泽华; 周俊波; 郭彦君; 王睿东; 李晓宇; 张鑫; 李新奥; 卿梦霞

doi:10.19666/j.rlfd.202411253

English

您当前的位置：

首页 >

文章列表页 >

典型碱基吸收剂对燃煤烟气中SO₃的脱除性能实验

热力发电 2025年54卷第9期页码：154-163

热能科学研究 | 更新时间：2026-08-11

- 典型碱基吸收剂对燃煤烟气中SO₃的脱除性能实验
- Experiment on removal performance of SO₃ from coal-fired flue gas using typical base-type absorbents
- 作者机构：
  
  1. 国家电投集团内蒙古白音华煤电有限公司坑口发电分公司
  2. 西安热工研究院有限公司
  3. 长沙理工大学能源与动力工程学院
- 作者简介：
- 基金信息：
  
  国家自然科学基金项目(52106131,52476102)~~
- DOI：10.19666/j.rlfd.202411253
  中图分类号： X773
- 纸质出版：2025
- 稿件说明：
移动端阅览
[1]李泽华,周俊波,郭彦君,等.典型碱基吸收剂对燃煤烟气中SO_3的脱除性能实验[J],2025,54(09):154-163.
[1]李泽华,周俊波,郭彦君,等.典型碱基吸收剂对燃煤烟气中SO_3的脱除性能实验[J],2025,54(09):154-163. DOI： 10.19666/j.rlfd.202411253.

DOI：10.19666/j.rlfd.202411253.

摘要

燃煤烟气中SO

的生成与排放严重威胁着电厂的安全经济运行与大气环境。为此研究了钠基、钙基与镁基吸收剂对SO

脱除性能，以及Na_2CO

、Ca(OH)

与CaO 3种碱基吸收剂在不同运行工况下的SO

脱除性能变化。结果表明：在SO

与SO

共存的条件下，吸收剂均会优先与烟气中的SO

发生反应，各种吸收剂对SO

的脱除效果从高到低顺序为Na_2CO

NaHCO

Mg(OH)

MgOCa(OH)

CaO；在一定实验条件下，当吸收剂与SO

化学当量比达2:1后，所有吸收剂对SO

的脱除效率均可达80%以上；对NaHCO

、Ca(OH)

、CaO 3种吸收剂进行煅烧预处理后，其对SO

的脱除率略有提高；反应温度、化学当量比和SO

初始质量浓度等参数的增加均有利于吸收剂对SO

的脱除，而在适当范围内提高H_2O体积分数有利于吸收剂对SO

的脱除；吸收剂显著过量时，外扩散是影响化学反应速率的主要控制步骤，而吸收剂类型对其影响较小。

Abstract

The formation and emission of SO

in coal-fired flue gas pose serious threats to both the safe and economical operation of power plants and the atmospheric environment. To solve this problem

the SO

removal performance of sodium-based

calcium-based and magnesium-based absorbents is investigated

and the pe

rformance variations of Na_2CO

Ca(OH)

and CaO under different operating conditions are studied. The results indicate that

under the coexistence of SO

and SO

the absorbers would react with SO

in the flue gas preferentially

and the effectiveness of SO

removal by various absorbents ranked from highest to lowest is as follows: Na_2CO

NaHCO

Mg(OH)

MgOCa(OH)

CaO. Under certain experimental conditions

the SO

removal efficiencies of all the absorbents could reach higher than 80% when the chemical equivalent ratio of absorbent to SO

reached 2:1. Pre-calcination treatment for the absorbents enhanced their pore structures

facilitating SO

diffusion into the absorbent and improving the SO

absorption efficiency. Increasing reaction temperature

chemical equivalent ratio

and initial SO

mass concentration can promote the SO

removal.Additionally

a moderate increase in H_2O volume fraction aided SO

removal. When the absorbent is significantly excessive

external diffusion is the main controlling step affecting the chemical reaction rate

while the type of absorbent has a relatively minor impact on it.

关键词

Keywords

references

李林欣,李乾军,张雯娣,等.燃煤烟气中SO3的产生及其治理措施[J].化工装备技术, 2018, 39(1):1-6.LI Linxin, LI Qianjun, ZHANG Wendi, et al. The production and control of SO3 in coal-fired flue gas[J].Chemical Equipment Technology, 2018, 39(1):1-6.

刘含笑,陈招妹,王少权,等.燃煤电厂SO3排放特征及其脱除技术[J].环境工程学报, 2019, 13(5):1128-1138.LIU Hanxiao, CHEN Zhaomei, WANG Shaoquan, et al.Emission characteristics and removal technology of SO3from coal-fired power plants[J]. Chinese Journal of Environmental Engineering, 2019, 13(5):1128-1138.

WANG Z K, YONG H, LI G L, et al. Sulfur trioxide removal by a Non-Base adsorbent from coal combustion flue gas[J]. Fuel, 2024, 370:131849.

尹子骏,苏胜,钟毓秀,等. SCR催化剂活性组分V对SO2氧化影响的研究[J].动力工程学报, 2023, 43(3):332-340.YIN Zijun, SU Sheng, ZHONG Yuxiu, et al. Study on the effect of active component V of SCR catalyst on SO2oxidation[J]. Journal of Chinese Society of Power Engineering, 2023, 43(3):332-340.

SARBASSOV Y, DUAN L, MANOVIC V, et al. Sulfur trioxide formation/emissions in coal-fired air-and oxy-fuel combustion processes:a review[J]. Greenhouse Gases:Science and Technology, 2018, 8(3):402-428.

李小龙,李军状,段玖祥,等.燃煤电厂烟气中SO3协同控制情况及排放现状[J].中国电力, 2019, 52(10):155-161.LI Xiaolong, LI Junzhuang, DUAN Jiuxiang, et al. SO3cooperative control and emission situation in the flue gas of coal-fired power plant[J]. Electric Power, 2019,52(10):155-161.

李欣怡,潘丹萍,胡斌,等.燃煤烟气中SO3迁移转化特性及其控制的研究现状及展望[J].化工进展, 2018,37(12):4887-4896.LI Xinyi, PAN Danping, HU Bin, et al. Research status and prospects of migration, transformation and control of SO3 from coal-fired flue gas[J]. Chemical Industry and Engineering Progress, 2018, 37(12):4887-4896.

张杨,冯前伟,杨用龙,等.燃煤电厂烟气SO3排放控制研究进展[J].中国电机工程学报, 2021, 41(1):231-248.ZHANG Yang, FENG Qianwei, YANG Yonglong, et al.A review on SO3 emission control of coal-fired power plant[J]. Proceedings of the CSEE, 2021, 41(1):231-248.

TING P, SUXIA M, GUANJIA Z, et al. Improving the removal of SO3 aerosol by combining flue gas condensation and alkali spray[J]. Energy, 2023, 272:127143

李高磊,郭沂权,张世博,等.超低排放燃煤电厂SO3生成及控制的试验研究[J].中国电机工程学报, 2019,39(4):1079-1086.LI Gaolei, GUO Yiquan, ZHANG Shibo, et al.Experimental research on SO3 generation and control in ultra-low emission coal-fired power plant[J]. Proceedings of the CSEE, 2019, 39(4):1079-1086.

YUAN H, YUJIE Z. Study on the effect of supercritical CFB boiler air preheater and flue gas treatment facilities on sulfur trioxide emission characteristics[J]. Energy Reports, 2022, 8:926-939.

刘含笑,郦建国,姚宇平,等.低低温电除尘系统对SO3脱除性能研究[J].发电技术, 2022, 43(1):147-154.LIU Hanxiao, LI Jianguo, YAO Yuping, et al. Study on SO3 removal performance of low-low temperature electrostatic precipitator system[J]. Power Generation Technology, 2022, 43(1):147-154.

YANG F, LI Z, LIU H, et al. Emission characteristics of condensable particulate matter and sulfur trioxide from coal-fired power plants[J]. Journal of the Energy Institute, 2021, 94:146-156.

耿一琪,郭彦霞,樊飙,等. CaO基吸附剂捕集CO2及其抗烧结改性研究进展[J].燃料化学学报, 2021,49(7):998-1013.GENG Yiqi, GUO Yanxia, FAN Biao, et al. Research progress of calcium-based adsorbents for CO2 capture and anti-sintering modification[J]. Journal of Fuel Chemistry and Technology, 2021, 49(7):998-1013.

吴永杰,戴永阳.燃煤电厂碱基喷吹脱除三氧化硫的应用研究[J].能源环境保护, 2020, 34(1):60-64.WU Yongjie, DAI Yongyang. The Technology of removing sulfur trioxide by alkaline sorbent injection in a coal-fired power plant[J]. Energy Environmental Protection, 2020, 34(1):60-64.

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

关联资源

燃煤烟气三氧化硫协同脱除技术研究进展

电化学耦合燃煤烟气中二氧化碳与氮气合成尿素研究进展

高效低成本复配吸收剂在燃煤烟气SO3脱除中的性能实验研究

燃煤烟气固体吸附二氧化碳捕集技术研究进展

燃煤烟气多污染物一体化控制技术研究进展

典型碱基吸收剂对燃煤烟气中SO3的脱除性能实验

Experiment on removal performance of SO3 from coal-fired flue gas using typical base-type absorbents

DOI：10.19666/j.rlfd.202411253

摘要

Abstract

关键词

Keywords

references

典型碱基吸收剂对燃煤烟气中SO₃的脱除性能实验

Experiment on removal performance of SO₃ from coal-fired flue gas using typical base-type absorbents