A series of study was conducted to investigate the corrosion behavior of 2Cr13 stainless steel and X65 carbon steel exposed to water-saturated and water-unsaturated dense CO₂ environments with SO₂ and O₂ impurities in the conditions of 25 °C and 50 °C, 8 MPa. Each test lasted for 48 h. The cross impacts of CO₂ phase (liquid phase and supercritical phase), water contents and steel types on the corrosion behavior were elaborately discussed. In water-saturated impure dense CO₂ with SO₂, SO₂/O₂ systems, the impacts of single impurity of SO₂ and multiple impurities of SO₂ and O₂ on accelerating general corrosion for both 2Cr13 and X65 steels was much stronger in the supercritical CO₂ system than in the liquid CO₂ system. At water-unsaturated conditions, 2Cr13 stainless steel exhibited better resistance to the general corrosion attack in liquid and supercritical CO₂ with SO₂ in comparison with X65 carbon steel, but suffered high risk of localized corrosion in liquid CO₂ mixtures. The 2Cr13 and X65 steels could bear higher amounts of water in supercritical CO₂ with SO₂ systems (∼1300 ppm H₂O) than in the liquid CO₂ with SO₂ systems (<300 ppm H₂O).

进行了一系列研究，以研究2Cr13不锈钢和X65碳钢在25°C和50°C条件下暴露于水饱和和水不饱和致密CO ₂环境中的SO ₂和O ₂杂质的腐蚀行为。，8兆帕。每次测试持续48小时。详细讨论了CO ₂相（液相和超临界相），水含量和钢种对腐蚀行为的交叉影响。在水饱和的不纯的致密CO ₂与SO ₂，SO ₂ / O _2个系统，SO的单杂质的影响₂和SO的多个杂质₂和O₂对加速2Cr13和X65钢的全面腐蚀的影响在超临界CO ₂系统中比在液态CO ₂系统中强得多。在水不饱和条件下，与X65碳钢相比，2Cr13不锈钢在带有SO _2的液态和超临界CO _2中表现出更好的耐一般腐蚀性能，但在液态CO ₂混合物中存在局部腐蚀的高风险。2Cr13和X65钢在超临界CO _2中使用SO ₂体系（约1300 ppm H ₂ O）比在液态CO _2中使用SO ₂可以承载更多的水。系统（<300 ppm H ₂ O）。