Corrosion Inhibition Effect of Gemini Surfactants on L360 Steel in Solution Containing H₂S/CO₂

The inhibition effects of three kinds of Gemini surfactants on L360 steel in H2S/CO2 solutions were studied by means of static weight loss method, potentiodynamic polarization curves and electrochemical impedance spectroscopy(EIS). The results revealed that the Gemini surfactants showed different inhibition effects, 12-2-12 was the best one, and the following was 16-2-16, the performance of 18-2-18 was not obivious. The adsorption of Gemini surfactants on steel could reduce the corrosion of carbon steel in corrosive solutions.