一种H_2S/CO_2腐蚀缓蚀剂的缓蚀行为  

Inhibition Performance of an Oil Field Inhibitor in H_2S/CO_2 Saturated 3% NaCl Solution

作　　者：段永锋[1] 李春贤[1] 于凤昌[1] 崔新安[1] 

机构地区：[1]中国石化集团洛阳石油化工工程公司,洛阳471003

出　　处：《腐蚀与防护》2011年第12期944-946,共3页Corrosion & Protection

基　　金：中石化科研项目(308057)资助

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.

关 键 词：H2S/CO2腐蚀 咪唑啉衍生物 缓蚀性能 吸附 

分 类 号：TG174.42[金属学及工艺—金属表面处理]