Investigation of Cathodic Reaction Mechanisms of H₂S Corrosion Using a Passive SS304 Rotating Cylinder Electrode

The internal corrosion of pipeline steel in the presence of hydrogen sulfide (H2S) represents a significant problem in the oil and gas industry. Its prediction and control pose a challenge for the corrosion engineers. In previously published research by the same authors, an electrochemical model of H2S corrosion was developed in both pure H2S and H2S/CO2 aqueous systems. An additional electrochemical cathodic reaction, direct H2S reduction, was...