CO_(2)腐蚀及其缓蚀剂应用研究进展  

Corrosion inhibitors and its application in CO_(2) corrosion

作　　者：刘畅[1] 陈旭[1] 杨江 LIU Chang;CHEN Xu;YANG Jiang(School of Oil and Gas Engineering,Liaoning Shihua University,Fushun 113001,Liaoning,China;School of Petrochemical Engineering,Liaoning Shihua University,Fushun 113001,Liaoning,China;College of Petroleum Engineering,Xi’an Petroleum University,Xi’an 710065,Shaanxi,China)

机构地区：[1]辽宁石油化工大学石油天然气工程学院,辽宁抚顺113001 [2]辽宁石油化工大学石油化工学院,辽宁抚顺113001 [3]西安石油大学石油工程学院,陕西西安710065

出　　处：《化工进展》2021年第11期6305-6314,共10页Chemical Industry and Engineering Progress

基　　金：教育部“春晖计划”国际合作项目;辽宁省“兴辽英才计划”(XLYC1902053)。

摘　　要：总结了CO_(2)腐蚀机理,分析了温度、CO_(2)分压力、pH、介质成分等因素对CO_(2)腐蚀的影响。介绍了目前应用较为广泛的咪唑啉衍生物、表面活性剂、季铵盐、有机胺等几类抑制CO_(2)腐蚀的缓蚀剂。详细阐述了几类常见缓蚀剂在CO_(2)腐蚀方面的应用及其作用机理。其中大部分缓蚀剂是通过物理吸附与化学吸附共同作用于活性位点进而达到缓蚀作用,指出了部分缓蚀剂的应用局限性。通常两种或多种缓蚀剂复配后效果或好于单一缓蚀剂,但单一组分发挥的作用难以测量。咪唑啉类缓蚀剂常作为CO_(2)腐蚀环境中复配缓蚀剂组分之一,文中对其与其他缓蚀剂的协同增效作用进行了分析归纳。最后对CO_(2)腐蚀以及抗CO_(2)腐蚀缓蚀剂未来的研究方向提出展望。The CO_(2)corrosion mechanism was summarized and the influences of temperature,CO_(2)partial pressure,pH and medium composition on CO_(2)corrosion were analyzed.The corrosion inhibitors widely used to inhibit CO_(2)corrosion such as imidazoline derivatives,surfactants,quaternary ammonium salts and organic amines were reviewed.The application and mechanism of several common corrosion inhibitors in CO_(2)corrosion were described in detail.Most of the corrosion inhibitors acted on the active sites by physical adsorption and chemical adsorption,and the limitations of some corrosion inhibitors were pointed out.Usually the combined effect of two or more corrosion inhibitors was better than a single corrosion inhibitor,however,the role of a single component was difficult to measure.Imidazoline corrosion inhibitor was often used as one of the components of compound corrosion inhibitors in CO_(2)corrosive environment,and the synergistic effect of imidazoline and other corrosion inhibitors was analyzed.Finally,the future research directions of CO_(2)corrosion and CO_(2)corrosion inhibitors were prospected.

关 键 词：二氧化碳腐蚀 影响因素 缓蚀剂 咪唑啉 协同增效 

分 类 号：TG174.42[金属学及工艺—金属表面处理]