Effect of sulfolane on CO<sub>2</sub> absorption and desorption by monoethanolamine aqueous solution

GUO Dongfang; GAO Shiwang; LUO Weiliang; CHEN Jian

doi:10.11949/j.issn.0438-1157.20160999

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Effect of sulfolane on CO₂ absorption and desorption by monoethanolamine aqueous solution

更新时间：2025-11-26

- Effect of sulfolane on CO₂ absorption and desorption by monoethanolamine aqueous solution
- CIESC Journal Issue 12, Pages: 5244-5251(2016)
- 作者机构：
  
  1. 中国华能集团清洁能源技术研究院有限公司,北京,102209
  2. 化学工程联合国家重点实验室, 清华大学化学工程系,北京,100084
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20160999
  CLC： Q028.2
- Online First：05 December 2016，
  
  Published：05 December 2016
- 稿件说明：
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GUO Dongfang, GAO Shiwang, LUO Weiliang, et al. Effect of sulfolane on CO₂ absorption and desorption by monoethanolamine aqueous solution[J]. CIESC Journal, 2016, (12): 5244-5251. DOI: 10.11949/j.issn.0438-1157.20160999.
DOI：

GUO Dongfang, GAO Shiwang, LUO Weiliang, et al. Effect of sulfolane on CO₂ absorption and desorption by monoethanolamine aqueous solution[J]. CIESC Journal, 2016, (12): 5244-5251. DOI: 10.11949/j.issn.0438-1157.20160999. DOI：

摘要

利用物理溶剂环丁砜替代部分水，采用气液搅拌实验装置和真实热流量热法测定了环丁砜对乙醇胺（MEA）溶液吸收和解吸二氧化碳（CO2）过程的影响，考察了CO2循环负载、吸收速率、吸收热和解吸热等性质变化。研究表明：环丁砜对MEA溶液负载CO2的吸收热影响较小，但对吸收速率、循环吸收容量和解吸过程影响较大。环丁砜可降低MEA溶液对CO2的表观吸收速率，且随CO2负载量的增大，降幅也逐渐变大。环丁砜有利于富液解吸过程，加快解吸速率，增大CO2解吸程度，同时单位热流负荷、单位冷流负荷和单位能耗均有不同程度的降低。在燃煤电厂烟气条件下，20% MEA+20% sulfolane体系相对20% MEA体系，其表观吸收速率平均降低约10%，CO2循环吸收容量增加24%，单位CO2解吸能耗降低18%。

Abstract

The effect of sulfolane on carbon dioxide(CO2) absorption and desorption by monoethanolamine(MEA) aqueous solution was measured by gas-liquid stirring rig and true heat flow calorimeter

including CO2 cyclic loading

absorption rate

heat of absorption and desorption. The experimental results show that sulfolane effect is significant for absorption rate

CO2 cyclic loading and CO2 desorption. In the condition of sulfolane addition

CO2 absorption rate into MEA solutions decreases and the decreasing amplitude increases with CO2 loading increase. Sulfolane can also accelerate desorption process and improve desorption level. Meanwhile

the heat duty

condensation duty and energy consumption are to some extent decreased. Under the condition of flue gas of coal-based power station and 20% sulfolane addition

the apparent CO2 absorption rate averagely decreases 10%

CO2 cyclic loading increases 24% and unit energy consumption for CO2 desorption decreases 18% in comparison with 20% MEA solution.

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Effect of sulfolane on CO2 absorption and desorption by monoethanolamine aqueous solution

DOI：10.11949/j.issn.0438-1157.20160999

摘要

Abstract

关键词

Keywords

references

Effect of sulfolane on CO₂ absorption and desorption by monoethanolamine aqueous solution