An electrochemical investigation on the effect of the chloride content on CO2 corrosion of API-X100 steel

Formation mechanism and protective property of corrosion product scale on X70 steel under supercritical CO 2 environment

“…However, as listed in Table 1, the investigations of steels immersed in SC CO 2 -saturated brine were limited. The effect of saline ions, especially Cl -, on the corrosion rate of steels has been widely investigated [51][52][53][54][55], it is generally believed that the maximum corrosion rate of carbon steel is obtained with Cl -content of about 25 g/L, similar to the content of Cl -in a 3.5wt% NaCl solution or in seawater. Moreover, the existing models have not well predicted the corrosion rate of steels at SC CO 2 conditions [39,[56][57].…”

Preliminary Investigation of the Corrosion Behavior of Proprietary Micro-alloyed Steels in Aerated and Deaerated Brine Solutions

“…According to researchers ( Ref 2,[25][26][27][28], the concentration of chloride can influence the solubility of oxygen in produced water. Yari (Ref 2) specifically reported that the maximum oxygen concentration in seawater is obtained in 3.5 wt.% NaCl solution.…”

Dual functions of chloride ions on corrosion behavior of mild steel in CO2 saturated aqueous solutions

“…Their results revealed that 25 g/L Cl − ions containing saturated CO 2 solution gave rise to a peak corrosion rate of steel, while excess Cl − ions played an inhibitory role in corrosion. Meanwhile, Eliyan et al studied the effects of Cl − ions concentrations in 1‐bar‐CO 2 ‐saturated solutions at 20 °C on corrosion of API‐X100 steel, and proposed that a peak CO 2 induced corrosion rate of 185 µA/cm 2 in 15 g/L NaCl solutions. Schmitt and colleagues identified that the susceptibility to pitting corrosion of pipelines appears the highest at 60–80 °C in a medium containing CO 2 .…”