焦炉烟气脱硫脱硝除尘一体化应用实践分析

doi:10.16597/j.cnki.issn.1002-154x.2025.05.011

焦炉烟气脱硫脱硝除尘一体化应用实践分析

罗永涛1 刘孟晓2 周 垚1
(1. 河南金马能源股份有限公司，济源 459000; 2. 伊犁永宁煤业化工有限公司，伊宁 835101)

摘 要 在大型焦炉上采用了“硫酸钠(SDS)干法脱硫+中低温选择性催化还原(SCR)脱硝除尘一体化”烟气净化工艺技术，分别分析了脱硫、除尘、脱硝各系统的处理效果，结果表明，经脱硫处理后的二氧化硫浓度为 109.1 mg·m${}^{-3}$−3，不能对二氧化硫进行达标处理，而经过除尘系统后的二氧化硫浓度为 1.2 mg·m${}^{-3}$−3，已达标。经过整个一体化工艺后，颗粒物、二氧化硫、氮氧化物的出口浓度为 0.9,1.3,37.8 mg·m${}^{-3}$−3，实现了达标排放。

关键词 焦炉烟气 硫酸钠(SDS)干法脱硫 中低温选择性催化还原脱硝除尘 一体化应用

Comparative Analysis of Sulfur Dioxide in Coke Oven Flue Gas by Three Detection Methods

LUO Yongtao1 LIU Mengxiao2 ZHOU Yao1
(Henan Jinma Energy Co., Ltd., Jiyuan 459000, China; Yili Yongning Coal Chemical Co., Ltd., Yining 835101, China)

Abstract The integrated flue gas purification technology of sodium sulfate (SDS) dry desulfurization + medium and low temperature selective catalytic reduction (SCR) denitrification and dust removal was adopted on a large coke oven. The treatment effects of desulfurization, dust removal, and denitrification systems were analyzed. The results showed that the sulfur dioxide concentration after desulfurization treatment was 109.1 mg·m-3${}^{-3}$
, which cannot meet the standard for sulfur dioxide treatment. However, the sulfur dioxide concentration after dust removal system is 1.2 mg·m-3, which can meet the standard for treatment. After the entire integrated process, the export concentrations of particulate matter, sulfur dioxide, and nitrogen oxides were 0.9, 1.3, and 37.8 mg·m-3${}^{-3}$
, achieving standard emissions.

Keywords coke oven flue gas sodium sulfate (SDS) dry desulfurization medium and low temperature selective catalytic reduction (SCR) denitrification and dust removal integrated application