CO_(2)地质利用与封存环境下钢材腐蚀行为与腐蚀控制措施研究进展  

Research progress on corrosion behavior and corrosion control measures of steel under CO_(2) geological utilization and storage environment

作　　者：王翰文 张力为 梅开元[3] 程小伟[3] 薛泉 王燕[1] 付晓娟[1] WANG Hanwen;ZHANG Liwei;MEI Kaiyuan;CHENG Xiaowei;XUE Quan;WANG Yan;FU Xiaojuan(State Key Laboratory of Geomechanics and Geotechnical Engineering,Institute of Rock and Soil Mechanics,Chinese Academy of Sciences,Wuhan 430071,China;University of Chinese Academy of Sciences,Beijing 100049,China;School of New Energy and Materials,Southwest Petroleum University,Chengdu 610500,China)

机构地区：[1]中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室,湖北武汉430071 [2]中国科学院大学,北京100049 [3]西南石油大学新能源与材料学院,四川成都610500

出　　处：《热力发电》2024年第2期37-47,共11页Thermal Power Generation

基　　金：四川省科技计划项目(2022YFSY0018);国家自然科学基金项目(42172315)。

摘　　要：CO_(2)地质利用与封存(CO_(2) geological utilization and storage,CGUS)是实现“碳中和”目标的重要技术手段,解决CGUS过程中的钢材腐蚀问题对于降低CGUS技术风险、实现CGUS技术规模化推广应用至关重要。综述了目前已经提出的CO_(2)腐蚀钢材反应机制,总结了CO_(2)腐蚀钢材的主要影响因素,阐明了CO_(2)分压、温度、矿化度及pH值、CO_(2)封存环境中含有杂质、流体流动等因素对钢材腐蚀行为的影响,归纳了适用于CO_(2)腐蚀钢材防护的主要措施。基于此,提出了CGUS环境下钢材遭受CO_(2)腐蚀问题的重点研究方向。主要包括:CO_(2)腐蚀钢材反应机制的进一步探究;各项环境因素耦合作用影响CO_(2)腐蚀规律和腐蚀程度的量化研究;高浓度CO_(2)条件下腐蚀防护技术的开发与应用。CO_(2) geological utilization and storage(CGUS)is an important technical means to achieve the goal of“carbon neutrality”.Solving the steel corrosion problem in the process of CGUS is crucial to reduce the risk of CGUS technology and achieve the large-scale promotion and application of CGUS technology.In this paper,the proposed reaction mechanism of CO_(2) corrosion of steel is reviewed,and the main factors influencing CO_(2) corrosion of steels are summarized.Moreover,the effects of CO_(2) partial pressure,temperature,salinity and pH value,the CGUS environment containing impurities,fluid flow and other factors on steel corrosion behavior are clarified,and the main protective measures for CO_(2) corrosion of steels are summarized.On this basis,the key research directions of steel subjected to CO_(2) corrosion in CGUS environment are put forward.The directions include further exploration of the reaction mechanism of CO_(2) corrosion of steels,quantitative study on the coupling effect of various environmental factors on the law and degree of CO_(2) corrosion,as well as the development and application of corrosion protection technologies under high CO_(2) concentration conditions.

关 键 词：地质封存 CO_(2)腐蚀 腐蚀影响因素 缓蚀剂 涂层 耐蚀合金 

分 类 号：TG178[金属学及工艺—金属表面处理]