Absorption of SO<sub>2</sub> in simulated flue gas with aqueous ionic liquid solutions

WANG Chenxing; REN Shuhang; HOU Yucui; WANG Yiming; TIAN Shidong; WU Weize

doi:10.11949/j.issn.0438-1157.20150156

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Absorption of SO₂ in simulated flue gas with aqueous ionic liquid solutions

更新时间：2025-12-10

- Absorption of SO₂ in simulated flue gas with aqueous ionic liquid solutions
- CIESC Journal Issue S1, Pages: 222-227(2015)
- 作者机构：
  
  1. 北京化工大学化学工程学院, 化工资源有效利用国家重点实验室,北京,100029
  2. 太原师范学院化学系,山西,太原,030031
  3. 中南大学化学化工学院,湖南,长沙,410083
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20150156
  CLC： Q534.9
- Online First：30 June 2015，
  
  Published：30 June 2015
- 稿件说明：
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WANG Chenxing, REN Shuhang, HOU Yucui, et al. Absorption of SO₂ in simulated flue gas with aqueous ionic liquid solutions[J]. CIESC Journal, 2015, (S1): 222-227. DOI: 10.11949/j.issn.0438-1157.20150156.
DOI：

WANG Chenxing, REN Shuhang, HOU Yucui, et al. Absorption of SO₂ in simulated flue gas with aqueous ionic liquid solutions[J]. CIESC Journal, 2015, (S1): 222-227. DOI: 10.11949/j.issn.0438-1157.20150156. DOI：

摘要

建立了一套放大脱硫装置

利用该装置研究了乙醇胺乳酸盐([MEA]L)水溶液在不同条件下吸收SO2的性能

确定出了较优的实验条件

并在该条件下进行吸收-解吸SO2循环实验。研究结果表明:烟气中SO2的去除率随[MEA]L中水分的增加而增加;SO2的去除率随着气液比的减少而增加

在气液比为420

SO2浓度为2850～14280 mg·m-3范围内时

出口烟气中SO2浓度均小于285 mg·m-3

满足排放标准;烟气中的CO2对[MEA]L水溶液吸收SO2没有影响;利用蒸汽对富液进行解吸再生

解吸后的贫液可以继续使用

并且仍具有很高的SO2去除率。

Abstract

A large-scale desulfurization device was designed and made to investigate the absorption of SO2 in simulated flue gas with aqueous ethanolamine lactate ([MEA]L) solutions at different conditions. The optimum conditions were found and circulatory SO2 absorption-desorption experiment was performed on the device. The results showed that the SO2 removal rate increased with an increase of water content of aqueous [MEA]L solution. The SO2 removal rate increased with a decrease of the molar ratio of gas to liquid absorbent G/L). When G/L is 420 and the concentrations of SO2 in flue gas are 2850—14280 mg·m-3

the output concentration of SO2 was under 285 mg·m-3

which conforms to the standard of flue gas issue. CO2 in the flue gas had no effect on absorption SO2 with aqueous [MEA]L solutions. Furthermore

the solution after SO2 absorption could be regenerated by stream stripping

and reused for absorbing SO2 with a high removal rate.

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Related Author

WANG Chenxing

REN Shuhang

HOU Yucui

TIAN Shidong

WU Weize

Yating ZHANG

Wenjie XIONG

Tianxiang ZHAO

Related Institution

School of Chemistry and Chemical Engineering, Nanjing University

School of Chemistry and Chemical Engineering, Guizhou University

Key Laboratory of Green Chemical and Clean Energy Technology, Guizhou University

College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology

Separation Engineering Research Center, School of Chemistry and Chemical Engineering, Nanjing University

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Absorption of SO2 in simulated flue gas with aqueous ionic liquid solutions

DOI：10.11949/j.issn.0438-1157.20150156

摘要

Abstract

关键词

Keywords

references

Absorption of SO₂ in simulated flue gas with aqueous ionic liquid solutions