二乙烯三胺甲酸盐-单乙醇胺-二甲亚砜CO2吸收剂腐蚀特性及机理研究
Study on corrosion characteristics and mechanism of diethylenetriamine formate-monoethanolamine-dimethylsulfoxide CO2 absorber
- 低碳化学与化工 2025, 50(11): 130-137.
- 作者机构：
1.安徽工业大学 冶金工程学院，安徽 马鞍山 243032
2.安徽工业大学 建筑工程学院，安徽 马鞍山 243032
- 作者简介：
张样（1982—），博士研究生，讲师，研究方向为CO2捕集，E-mail：jzjnyjs@163.com。
黄志甲（1963—），博士，教授，博士研究生导师，研究方向为CO2捕集，E-mail：hzj@ahut.edu.cn。
- 基金信息：国家自然科学基金(51608001);安徽省高校自然科学基金(KJ2019ZD08);安徽省大学生创新创业计划(S202410360225)
DOI：10.12434/j.issn.2097-2547.20240516
中图分类号： TQ413收稿：2024-12-28，
修回：2025-02-26，
纸质出版：2025-11-25
- 稿件说明：
移动端阅览
张样,黄志甲,谢福松等.二乙烯三胺甲酸盐-单乙醇胺-二甲亚砜CO2吸收剂腐蚀特性及机理研究[J].低碳化学与化工,2025,50(11):130-137.
ZHANG Yang,HUANG Zhijia,XIE Fusong,et al.Study on corrosion characteristics and mechanism of diethylenetriamine formate-monoethanolamine-dimethylsulfoxide CO2 absorber[J].Low-Carbon Chemistry and Chemical Engineering,2025,50(11):130-137.
张样,黄志甲,谢福松等.二乙烯三胺甲酸盐-单乙醇胺-二甲亚砜CO2吸收剂腐蚀特性及机理研究[J].低碳化学与化工,2025,50(11):130-137. DOI： 10.12434/j.issn.2097-2547.20240516.
ZHANG Yang,HUANG Zhijia,XIE Fusong,et al.Study on corrosion characteristics and mechanism of diethylenetriamine formate-monoethanolamine-dimethylsulfoxide CO2 absorber[J].Low-Carbon Chemistry and Chemical Engineering,2025,50(11):130-137. DOI： 10.12434/j.issn.2097-2547.20240516.
摘要
针对钢铁企业高炉煤气CO
2
捕集设备的腐蚀问题，制备了离子液体型无水吸收剂二乙烯三胺甲酸盐-单乙醇胺-二甲亚砜（[DETAH
]
[HCOO
]
-MEA-DMSO），分别采用失重法和电化学法研究了[DETAH
]
[HCOO
]
-MEA-DMSO和含水吸收剂（MEA-H
2
O、[DETAH
]
[HCOO
]
-MEA-H
2
O）对20#碳钢片的腐蚀性。结果表明，在30 ℃下腐蚀20#碳钢片168 h，新鲜和饱和[DETAH
]
[HCOO
]
-MEA-DMSO的腐蚀性均非常弱，腐蚀速率（失重法）分别为3.12 × 10
-4
mm/a和9.56 × 10
-4
mm/a，腐蚀电流密度（电化学法）分别为4.09 × 10
-7
A/cm
2
和13.20 × 10
-7
A/cm
2
。温度升高和CO
2
负载量增大均不会增强[DETAH
]
[HCOO
]
-MEA-DMSO的腐蚀性。[DETAH
]
[HCOO
]
-MEA-DMSO的弱腐蚀性与离子液体组分对Fe
2+
的螯合作用有关。
Abstract
In order to solve the corrosion problem of CO
2
capture equipment of blast furnace gas in iron and steel enterprises
the ionic liquid anhydrous absorber diethylenetriamine formate-monoethanolamine-dimethylsulfoxide ([DETAH
]
[HCOO
]
-MEA-DMSO) was prepared. The corrosivities of [DETAH
]
[HCOO
]
-MEA-DMSO and aqueous absorbers (MEA-H
2
O
[DETAH
]
[HCOO
]
-MEA-H
2
O) on 20# carbon steel sheet were studied by weight loss method and electrochemical method
respectively. The results show that when 20# carbon steel is corroded at 30 ℃ for 168 h
the corrosivity of fresh and saturated [DETAH
]
[HCOO
]
-MEA-DMSO is very weak
with corrosion rates (weight loss method) of 3.12 × 10
-4
mm/a and 9.56 × 10
-4
mm/a
respectively
and the corrosion current densities (electrochemical method) are 4.09 × 10
-7
A/cm
2
and 13.20 × 10
-7
A/cm
2
respectively. The corrosivity of [DETAH
]
[HCOO
]
-MEA-DMSO is not enhanced by increasing temperature and CO
2
loading. The weak corrosivity of [DETAH
]
[HCOO
]
-MEA-DMSO is related to the chelation effect of ionic liquid components to Fe
2+
.
关键词
Keywords
references
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