This paper discusses the product design philosophy for corrosion inhibitors used for CCTS (Carbon Capture, Transportation and Storage), which have to work in both vapor phase and liquid phase at the same time. To evaluate these corrosion inhibitors for CCTS application, two phase testing using RCA (Rotating Cage Autoclave) and EIS (Electrochemical Impedance Spectroscopy) methods were performed under CO2 supercritical conditions with and without water and SO2 as the major impurities in the system.
Keywords: Vapor CI, Vapor Corrosion Inhibitor, CCTS, CCS, supercritical condition, CO2, corrosion inhibitors, corrosion testing, electrochemical, RCA, EIS, AC Impedance