Experimental study on SO<sub>3</sub> migration rule of high sulfur coal unit

ZHANG Zhixiang; XU Dangqi; LU Jun; ZOU Xiaogang; CHE Hongwei; LI Wenfeng; LI Nan

doi:10.19666/j.rlfd.201909210

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Experimental study on SO₃ migration rule of high sulfur coal unit

更新时间：2025-09-28

- Experimental study on SO₃ migration rule of high sulfur coal unit
- Thermal Power Generation Vol. 49, Issue 4, Pages: 25-28(2020)
- 作者机构：
  
  西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.201909210
  CLC： TK314
- Published Online：27 March 2020，
  
  Published：2020
- 稿件说明：
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ZHANG Zhixiang, XU Dangqi, LU Jun, et al. Experimental study on SO₃ migration rule of high sulfur coal unit[J]. Thermal power generation, 2020, 49(4): 25-28.
DOI：

ZHANG Zhixiang, XU Dangqi, LU Jun, et al. Experimental study on SO₃ migration rule of high sulfur coal unit[J]. Thermal power generation, 2020, 49(4): 25-28. DOI： 10.19666/j.rlfd.201909210.

摘要

在某高硫煤燃煤机组静电除尘器入口加装烟气冷却器

测试脱硝系统进出口、空气预热器进出口、烟气冷却器进出口、除尘器进出口的SO_3质量浓度。结果表明:脱硝系统内的SO_3转化率为0.99%～1.10%

空气预热器对SO_3的脱除率在30.14%～36.09%之间

烟气冷却器对SO_3的脱除率在84.47%～88.93%之间

经过除尘器后SO_3质量浓度可减少1.60～2.60 mg/m~3;在静电除尘器前增加烟气冷却器并运行至100℃

能够保证引风机入口SO_3质量浓度低于15 mg/m~3。

Abstract

A flue gas cooler was installed at entrance of the electrostatic precipitator(ESP) of a high sulfur coalfired units. Moreover

the mass concentrations of SO_3 at inlet and outlet of such facilities as the denitrification system

the air preheater

the flue gas cooler and the ESP were detected. The results show that

the conversion rate of SO_3 in the denitrification system was 0.99%～1.10%

the removal rate of SO_3 by the air preheater was 30.14%～36.09%

and that by the flue gas cooler was 84.47%～88.93%. After flowing through the ESP

the mass concentration of SO_3 in the flue gas can be decreased by 1.60～2.60 mg/m~3. Installing flue gas cooler in front of the ESP and making it run at 100 ℃ can ensure the mass concentration of SO_3 at inlet of the induced draft fan be less than 15 mg/m~3.

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Related Author

ZHANG Zhixiang

XU Dangqi

JIA Zhaopeng

ZOU Xiaogang

LI Nan

ZOU Ying

CHE Defu

WANG Yikun

Related Institution

Xi'an Xire Boiler Environmental Protection Engineering Co., Ltd

State Key Laboratory of Multiphase Flow for Power Engineering, Xi'an Jiaotong University

China Energy Engineering Group Shaanxi Electric Power Design Institute Co., Ltd

Huaneng Changjiang Environmental Protection Technology Co., Ltd

School of Foreign Languages, Xi'an Jiaotong University

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Experimental study on SO3 migration rule of high sulfur coal unit

DOI：10.19666/j.rlfd.201909210

摘要

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关键词

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Experimental study on SO₃ migration rule of high sulfur coal unit