摘要
通过挂片法、电化学极化曲线、扫描电镜(SEM)、电子能谱(EDS)等分析方法,研究一种咪唑啉衍生物缓蚀剂CI-03在H2S/CO2饱和3%NaCl溶液的腐蚀体系中对碳钢的缓蚀作用及其吸附模型。结果表明,缓蚀剂CI-03是一种以阳极型为主的混合型缓蚀剂,对腐蚀体系中碳钢具有良好的缓蚀作用;其在碳钢表面的吸附遵循Langmuir吸附等温式。
The inhibition performance of an imidazoline derivative inhibitor for carbon steel in CO2/H2S saturated 5% NaCl solution at 60 ℃ was investigated by potentiodynamic polarization and weight loss measurements, and the surface analysis of carbon steel was performed by SEM and EDS. Results showed that the inhibitor CI-03, acting as an anodic-type inhibitor, could inhibit the corrosion of carbon steel in simulation solution significantly. Its adsorption on the metal surface obeys Langmuir adsorption isotherm. The inhibitor could form a product film on the metal surface by adsorption, which brought on high protection performance for carbon steel.
出处
《腐蚀与防护》
CAS
北大核心
2011年第12期944-946,共3页
Corrosion & Protection
基金
中石化科研项目(308057)资助
