Corrosion behavior of carbon steel in amine-based CO2 capture system: effect of sodium sulfate and sodium sulfite contaminants

被引：24
作者：
Emori, W. [1 ]
Jiang, S. L. [1 ]
Duan, D. L. [1 ]
Ekerenam, O. O. [1 ]
Zheng, Y. G. [1 ]
Okafor, P. C. [2 ]
Qiao, Y. X. [3 ]
机构：
[1] Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China
[2] Univ Calabar, Dept Pure & Appl Chem, PMB 1115, Calabar, Nigeria
[3] Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang 212003, Peoples R China
来源：
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION | 2017年 / 68卷 / 06期
关键词：
carbon steel; CO2; capture; corrosion; sulfate; sulfite; HEAT-STABLE SALTS; ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY; GAS TREATING PLANTS; UNDERSTANDING CORROSION; INHIBITORS; MONOETHANOLAMINE; PERFORMANCE; MEA; EIS;
D O I：
10.1002/maco.201609245
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of sodium sulfate and sodium sulfite on the corrosion behavior of carbon steel in CO2 capture process with methyldiethanolamine (MDEA) solution has been studied under an absorber temperature condition (50 degrees C). The corrosion behavior was evaluated using electrochemical methods, weight loss measurements, and surface analytical techniques. Sodium sulfate increased the system corrosiveness and the rate of corrosion increased with concentration while sodium sulfite reduced the corrosion rate and the inhibition performance improved with concentration. Weight loss measurements showed an increase in corrosion rate with time for sodium sulfate while the inhibition performance for sodium sulfite was considerably low for the tested concentration.
引用
收藏
页码：674 / 592
页数：9
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