Feasibility Study of White Smoke Removal of Flue Gas From Wet Desulphurization in Coal-fired Boiler

Feng ZHOU; Xiaohuan ZHI; Da SHEN; Jianjun JIANG; Jian ZOU; Haitao XU; Qiang LI; Yinchun LIANG

doi:10.12096/j.2096-4528.pgt.20021

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Feasibility Study of White Smoke Removal of Flue Gas From Wet Desulphurization in Coal-fired Boiler

Power Generation and Environmental Protection | 更新时间：2025-07-04

- Feasibility Study of White Smoke Removal of Flue Gas From Wet Desulphurization in Coal-fired Boiler
- Power Generation Technology Vol. 42, Issue 5, Pages: 622-629(2021)
- 作者机构：
  
  1.南通醋酸纤维有限公司, 江苏省南通市 226008
  2.南京工业大学环境科学与工程学院, 江苏省南京市 211800
- 作者简介：
- 基金信息：
  
  Key Research and Development Program of Jiangsu Province(BE2018074)
- DOI：10.12096/j.2096-4528.pgt.20021
  CLC： TK16
- Received：08 November 2020，
  
  Published：31 October 2021
- 稿件说明：
移动端阅览
Feng ZHOU, Xiaohuan ZHI, Da SHEN, et al. Feasibility Study of White Smoke Removal of Flue Gas From Wet Desulphurization in Coal-fired Boiler[J]. Power Generation Technology, 2021, 42(5): 622-629.
DOI：

Feng ZHOU, Xiaohuan ZHI, Da SHEN, et al. Feasibility Study of White Smoke Removal of Flue Gas From Wet Desulphurization in Coal-fired Boiler[J]. Power Generation Technology, 2021, 42(5): 622-629. DOI： 10.12096/j.2096-4528.pgt.20021.

摘要

湿法脱硫出口的饱和烟气直接由烟囱排入环境会形成“白烟”，产生视觉污染。为了完全消除“白烟”现象，阐述了“白烟”生成和脱白的机理，对比了不同湿烟气脱白的技术特点和适用范围。以南通某燃煤锅炉湿法脱硫烟气为例，通过分析2014—2016年的气象数据，绘制温湿图，确定脱白控制区及无白烟天数控制线。选取气象条件最差的2016年作为设计基准，分析选定烟气冷凝升温技术作为脱白工艺路线。通过分析控制白烟温降温升关系，得出实现不同的白烟控制线所对应的冷凝温度与升温幅度关系，从而选取最经济的冷凝温度和升温幅度，为烟气冷凝升温脱白工艺路线的经济运行提供理论参考。

Abstract

Wet plume forms when the wet flue gas from the wet desulphurization system exits into the ambient air

which would bring about visual pollution. In order to completely eliminate the phenomenon of wet plume

the mechanism of the generation and de-whitening of "white smoke" was described firstly

and the technical characteristics and application scope of different wet smoke de-whitening were compared. Take a coal-fired boiler in Nantong area as an example

the enthalpy and humidity map was drawn by analyzing the meteorological data from 2014 to 2016

determine the white smoke elimination control zone and the white smoke control line.The worst weather conditions in 2016 were selected as the design basis

and the flue gas condensation heating technology was selected as the de-whitening process route. By analyzing the relationship between temperature drop and temperature rise of white smoke control line

the relationship between condensation temperature and temperature rise range corresponding to different white smoke control lines was obtained

so as to select the most economical condensation temperature and temperature rise range

which provides theoretical reference for the economic operation of flue gas condensation heating and de whitening process.

关键词

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references

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