Amine purification technology for CO<sub>2</sub> capture system in coal-fired power plants

ZHANG Xiaogang; ZHANG Yi; MAO Xiaoyu; LI Jianxi; LI Shuangpei; ZHANG Anqi; HE Yong; ZHANG Chi

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Amine purification technology for CO₂ capture system in coal-fired power plants

更新时间：2025-09-28

- Amine purification technology for CO₂ capture system in coal-fired power plants
- Thermal Power Generation Vol. 43, Issue 11, Pages: 75-78(2014)
- 作者机构：
  
  1. 西安热工研究院有限公司
  2. 武汉大学资源与环境科学学院
  3. 北京理工大学化学学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TQ028.15
- Published：2014
- 稿件说明：
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ZHANG Xiaogang, ZHANG Yi, MAO Xiaoyu, et al. Amine purification technology for CO₂ capture system in coal-fired power plants[J]. Thermal power generation, 2014, 43(11): 75-78.
DOI：

ZHANG Xiaogang, ZHANG Yi, MAO Xiaoyu, et al. Amine purification technology for CO₂ capture system in coal-fired power plants[J]. Thermal power generation, 2014, 43(11): 75-78. DOI：

摘要

针对CO2捕集系统有机胺液中热稳定盐的积累进而引起胺液损耗增加、腐蚀严重等问题

提出采用阴离子交换树脂去除胺液中热稳定盐阴离子

采用活性炭吸附去除胺液色度

最后采用大孔树脂进一步净化胺液的组合工艺

并对工艺的影响因素

以及净化胺液的吸收性能进行了测试。结果表明:阴离子交换树脂处理工艺在较高的温度、pH值及含盐量水平的条件下

均可以达到较好的效果

热稳盐去除率可达90%以上;变质有机胺液经过处理后

其CO2吸附能力恢复至新鲜胺液的92%

并且溶液颜色恢复至淡黄色透明液体

可满足工业回用要求。

Abstract

The accumulation of heat stable salts(HSS)in amine liquid during CO2 capture cycle can increase amine liquid consumption and cause serious corrosion.Thus

a combined process was developed

including removal of HSS anion by anion exchange resin

chromaticity color by activated carbon

and further purification by macro-porous resin.Some influencing factors were investigated and the absorption performance of purified amine was tested.The results show that

the amine exchange resin can perform well even under conditions with high temperature

high pH value and high salt content

of which the removal rate of HSS was over 90%.After treated by the combined process above

the CO2 absorption ability of the purified amine liquid can recover to 92% of that of the flesh amine liquid

with a color of transparent pale yellow

which meets the requirements of industrial recycling.

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Related Author

ZHANG Xiaogang

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LI Xiaochun

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Related Institution

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North China Electric Power University

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Amine purification technology for CO2 capture system in coal-fired power plants

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摘要

Abstract

关键词

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Amine purification technology for CO₂ capture system in coal-fired power plants