摘要
通过浸泡腐蚀试验和电化学测量研究了温度和Cl^(-)质量浓度对Q235钢在CO_(2)饱和的20%(质量分数)N-甲基二乙醇胺溶液(MDEA/CO_(2))中腐蚀行为的影响。结果表明,温度和Cl^(-)质量浓度对Q235钢在MDEA/CO_(2)体系中腐蚀行为的影响是交互的。Cl^(-)质量浓度为1 g/L和10 g/L时,Q235钢的腐蚀速率随温度升高而增大;Cl^(-)质量浓度为15 g/L时,Q235钢的腐蚀速率随温度升高呈先增后减的变化趋势。
The effects of temperature and mass concentration of Cl^(-) on the corrosion behavior of Q235 steel in CO_(2)-saturated 20 wt.% N-methyldiethanolamine(MDEA/CO_(2)) solution were studied by immersion corrosion test and electrochemical measurements. The corrosion rate of Q235 steel was increased with the increasing of temperature when there was 1 g/L or 10 g/L Cl^(-) in the MDEA/CO_(2) system. However, the corrosion rate of Q235 steel was increased initially and then decreased with the increasing of temperature when the mass concentration of Cl^(-) was 15 g/L.
作者
李丹
梁若渺
刘晓
廖锐全
罗威
LI Dan;LIANG Ruomiao;LIU Xiao;LIAO Ruiquan;LUO Wei(College of Petroleum Engineering,Yangtze University,Wuhan 431000,China;Engineering and Technology Research Institute of Tuha Oilfield Company,Hami 839009,China;Sichuan Shale Gas Exploration and Development Limited Liability Company,Chengdu 640000,China)
出处
《电镀与涂饰》
CAS
北大核心
2021年第19期1515-1520,共6页
Electroplating & Finishing
基金
国家自然科学基金(62173049)
国家重大专项“CO2驱油藏全生命周期举升工艺及配套技术研究”(2017Z11011)。
关键词
N-甲基二乙醇胺
二氧化碳
碳素结构钢
腐蚀
温度
氯离子
N-methyldiethanolamine
carbon dioxide
carbon structural steel
corrosion
temperature
chloride ion
