咪唑啉型缓蚀剂的合成及其抑制CO2腐蚀性能的研究

DEVELOPMENT OF AN IMIDAZOLINY CORROSION INHIBITOR AND STUDY ON ITS INHIBITION FOR CO_2 CORROSION

摘要: 合成了一种咪唑啉型缓蚀剂，并将所合成的咪唑啉型缓蚀剂与其它物质进行复配得到一种抗CO2腐蚀的气-液双相缓蚀剂。利用静态失重法测定了咪唑啉型缓蚀剂在盐酸介质中对20A碳钢以及复配物在CO2介质中对N80钢的腐蚀速度和缓蚀效率。结果表明：该咪唑啉型缓蚀剂在盐酸介质中对20A碳钢具有较强的缓蚀能力，并且其与吗啉衍生物、硫脲及丙炔醇复配后对抑制CO2的腐蚀有很好的效果。在实验条件下，该复配物的加入量为500mg/l时，气相中的缓蚀效率为93.6%，液相中的缓蚀效率为96.9%。

Abstract: An imidazoliny corrosion inhibitor was prepared and a vapor - liquid phases corrosion inhibitor was developed by mixing the imidazoline with other chemicals. The corrosion rate and inhibition efficiency of the imidazoline for 20A carbon steel in hydrochlo