WANG Hanwen, ZHANG Liwei, MEI Kaiyuan, et al. Research progress on corrosion behavior and corrosion control measures of steel under CO2 geological utilization and storage environment[J]. Thermal power generation, 2024, 53(2): 37-47.
WANG Hanwen, ZHANG Liwei, MEI Kaiyuan, et al. Research progress on corrosion behavior and corrosion control measures of steel under CO2 geological utilization and storage environment[J]. Thermal power generation, 2024, 53(2): 37-47. DOI: 10.19666/j.rlfd.202307124.
CO2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
摘要
CO_2地质利用与封存(CO_2 geological utilization and storage
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.