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首页> 外文期刊>International Journal of Electrochemical Science >Imidazoline Derivatives Based on Coffee Oil as CO2 Corrosion Inhibitor
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Imidazoline Derivatives Based on Coffee Oil as CO2 Corrosion Inhibitor

机译：基于咖啡油作为CO 2 缓蚀剂的咪唑啉衍生物

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In this work, a hydroxyethyl-imidazoline derivate based on coffee oil has been synthesized andevaluated as an inhibitor of corrosion for carbon steel in CO2-saturated (3% NaCl + 10% diesel)emulsion at 50C. Electrochemical impedance spectroscopy has been used to study the film formationon carbon steel. Performance of inhibitor was evaluated by adding 0, 5, 10, 25, 50, and 100 ppm. EISdata were used to calculate corrosion related electrochemical parameters, and this technique wasshown to be a very useful tool for studying corrosion inhibitors. Optimal concentration is 10 ppm, bydecreasing the corrosion rate by over 99.9%. Lower or higher concentrations increases the corrosionrate because the surface area covered by the inhibitor decreases, causing the formation of unprotectedsites on the metal.
机译：在这项工作中，合成了基于咖啡油的羟乙基咪唑啉衍生物，并将其评估为在50℃下CO2饱和（3％NaCl + 10％柴油）乳液中碳钢的腐蚀抑制剂。电化学阻抗谱已用于研究碳钢上的膜形成。通过添加0、5、10、25、50和100 ppm来评估抑制剂的性能。 EISdata用于计算腐蚀相关的电化学参数，并且该技术被证明是研究腐蚀抑制剂的非常有用的工具。通过将腐蚀率降低99.9％以上，最佳浓度为10 ppm。较低或较高的浓度会增加腐蚀速率，因为抑制剂所覆盖的表面积会减少，从而导致在金属上形成未保护的位点。

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