Research progress of cooperative removal of sulfur trioxide from coal-fired flue gas

ZHAO Wentao; ZHAO Yi; LI Zhao; HONG Peibin; SUN Xuran

doi:10.19666/j.rlfd.202006201

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Research progress of cooperative removal of sulfur trioxide from coal-fired flue gas

更新时间：2025-09-28

- Research progress of cooperative removal of sulfur trioxide from coal-fired flue gas
- Thermal Power Generation Vol. 50, Issue 4, Pages: 7-13(2021)
- 作者机构：
  
  华北电力大学环境科学与工程学院
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.202006201
  CLC： X511
- Published Online：25 March 2021，
  
  Published：2021
- 稿件说明：
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ZHAO Wentao, ZHAO Yi, LI Zhao, et al. Research progress of cooperative removal of sulfur trioxide from coal-fired flue gas[J]. Thermal power generation, 2021, 50(4): 7-13.
DOI：

ZHAO Wentao, ZHAO Yi, LI Zhao, et al. Research progress of cooperative removal of sulfur trioxide from coal-fired flue gas[J]. Thermal power generation, 2021, 50(4): 7-13. DOI： 10.19666/j.rlfd.202006201.

摘要

燃煤电厂锅炉选择性催化还原(SCR)烟气脱硝系统中SO_3的生成及排放对电厂的运行和环境空气质量均会产生不利影响

且危害人体健康

一些国家和地区针对SO_3设置了严格的排放标准。SO_3协同脱除技术得到了推广运用

低低温电除尘器、电袋复合除尘器和湿式电除尘器的应用使SO_3脱除效率显著提升。本文针对燃煤电厂SO_3的生成、脱除和检测开展了详细研究

综述了脱硝装置、除尘设施、脱硫系统对烟气中SO_3控制技术的研究进展

并对多种SO_3检测技术进行了优缺点对比

并根据SO_3协同脱除技术研究现状提出了未来的发展方向。

Abstract

The generation and emission of SO_3 in SCR system of coal-fired boilers has an adverse influence on the operation of the power plants and air quality

and will endanger human health. Some countries and regions have set strict emission standards for SO_3. The SO_3 collaborative removal technology has been promoted and applied. The application of ultra low temperature electric dust collectors

electrostatic fabric filter and wet electrical dust precipitator has significantly improved the SO_3 removal efficiency. This paper investigates the formation

removal and detection of SO_3 in coal-fired power plants in detail

reviews the research progress of SO_3 flue gas control technology in denitrification devices

dust removal facilities and desulfurization systems

and compares the advantages and disadvantages of various SO_3 detection technologies. On this basis

it proposes the future development direction of the SO_3 collaborative removal technology.

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