Mechanism of simultaneous removal of SO2 and NOx by NaClO2/NaClO compound absorbent

ZHANG Peng; YANG Yili; XU Honglei; LI Juanjuan; JIANG Bin; JIANG Yanyan; PAN Lili College of Biological and Environmental Engineering

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Mechanism of simultaneous removal of SO₂ and NO_x by NaClO₂/NaClO compound absorbent

Thermal Power Generation Vol. 42, Issue 11, Pages: 93-96(2013)

更新时间：2025-09-28

- Mechanism of simultaneous removal of SO₂ and NO_x by NaClO₂/NaClO compound absorbent
- 作者机构：
  
  浙江工业大学生物与环境工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： X773
- Published：2013
- 稿件说明：
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ZHANG Peng, YANG Yili, XU Honglei, et al. Mechanism of simultaneous removal of SO₂ and NO_x by NaClO₂/NaClO compound absorbent[J]. Thermal Power Generation, 2013, 42(11): 93-96.
DOI：

ZHANG Peng, YANG Yili, XU Honglei, et al. Mechanism of simultaneous removal of SO₂ and NO_x by NaClO₂/NaClO compound absorbent[J]. Thermal Power Generation, 2013, 42(11): 93-96. DOI：

摘要

采用化学滴定和离子色谱法

对NaClO2、NaClO溶液及其组成的复合吸收液在同时脱硫脱硝反应过程中离子的存在形式及其浓度的变化进行了定性、定量分析

探讨了NaClO2和NaClO之间的互相作用及其脱硫脱硝的机理。结果表明

NaClO2和NaClO反应生成的中间产物ClO2和Cl2担负了重要的氧化吸收作用

使脱硝效率提高最为明显

在其作用下

NO与SO2被氧化成NO3-及SO42-

脱除效率达90%以上。

Abstract

The chemical titration method and ion chromatography method were employed to analyze the ionic form and concentration in the NaClO2solution

NaClO solution and their compound solution during the simultaneous desulfurization and denitrification process qualitatively and quantitatively.The interaction between the NaClO2and NaClO and the mechanism of simultaneous desulfurization and denitrification were discussed.The results showed that

the ClO2and Cl2that produced by reaction between the NaClO2and NaClO was the main oxidant

which can greatly enhance the denitrification efficiency.With the action of the ClOand Cl2

the NO and SO2was oxidized into NO3-and SO42-

and both the denitration and desulfurization efficiency reached above 90%.

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