咪唑啉在H_2S/CO_2腐蚀体系的缓蚀性能研究

Study on Corrosion Inhibition Performance of Imidazoline in H_2S/CO_2 Corrosion System

通过静态挂片失重法和电化学极化曲线法,研究两种改性的咪唑啉衍生物缓蚀剂在饱和H2S/CO2腐蚀环境中的缓蚀性能。研究结果表明,两种缓蚀剂对饱和H2S/CO2腐蚀体系具有良好的缓蚀效果,使H2S/CO2腐蚀体系的自腐蚀电位发生正移,腐蚀电流密度减小,对碳钢腐蚀反应过程有良好的抑制作用。

The corrosion inhibition performances of two modified imidazolines in the saturated H2S/CO2 corrosion system were studied by using weight loss corrosion measurement and potentiodynamic polarization technique. The results showed that the two imidazolines in the saturated H2S/CO2 corrosion system have excellent anti - corrosion performance. The polarization caves proved that the corrosion potential of carbon steel became more positive and the corrosion electricity was diminished, which proves that the imidazohne can greatly inhibit the corrosion of carbon steel.