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炔氧甲基季胺盐和咪唑啉对N80在饱和CO_2的3%NaCl溶液中的缓蚀性能研究
Study on inhibitor properties of quaternary alkynoxymethyl amine and imidazoline for N80 seamless steel in 3% NaCl saturated by CO_2
查看参考文献10篇
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文摘
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利用交流阻抗(EIS)、线性极化、动电位极化和拉曼光谱等方法对炔氧甲基季胺盐和咪唑啉在常温常压CO2饱和的模拟油田产出水中的电化学行为和缓蚀性能进行了研究.结果表明:随两种缓蚀剂的加入,体系的阳极电流都明显减小,自腐蚀电位都明显正移,都存在阳极脱附现象和浓度极值现象;炔氧甲基季胺盐的极值浓度为150mg/L,而咪唑啉的极值浓度为100mg/L咪唑啉缓蚀剂的缓蚀效果更佳.但在7 m/s时直至缓蚀剂浓度为300mg/L时也没有发现静态下的浓度极值现象. |
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其他语种文摘
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A study on the effect of IMC-80-Q(quaternary alkynoxymethyl amine)and IMC-871-W(imidazoline) on the electrochemical behavior and inhibitor properties of N80 steel in 3 % NaCl saturated by CO2 at 25"C ± 1°C was carried out by means of weight loss and electrochemistry techniques including EIS, potentiodynamic polariza-tion and linear polarization. The sharp decrease of anodic current density is, positive shift of corrosion potential (￡corr)and anodic desorption were observed in inhibited solutions. The electrochemical parameters Rv, C^ and Rt exhibited extreme values at certain concentrations of two inhibitors, 150 mg/L for IMC-80-Q and 100 mg/L for IMC-871-W , respectively. IMC-871-W had better inhibitor properties than IMC-80-Q.The weight loss test at 7 m/s showed that the cumulative mass loss was decreased sharply for solutions containing IMC-80-Q, compared with inhibitor-free brine, and extreme-value-phenomena of concentration were not observed up to 300 mg/L. |
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来源
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中国腐蚀与防护学报
,2004,24(1):10-15 【核心库】
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关键词
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CO_2腐蚀
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无缝钢N80
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缓蚀剂
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浓度极值
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阳极脱附
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电化学测试
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流速
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地址
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中国科学院金属研究所, 金属腐蚀与防护国家重点实验室, 沈阳, 110016
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1005-4537 |
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学科
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金属学与金属工艺 |
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基金
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国家自然科学基金资助项目
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文献收藏号
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CSCD:1506890
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10
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