Behavior Electrochemical of Carbon Steel in a Synthetic Medium and Hydrocarbon on a System with Continuous Flow Rate

Tuesday, 7 October 2014
Expo Center, 1st Floor, Center and Right Foyers (Moon Palace Resort)
L. D. Lopez, F. J. Olguin, M. A. veloz Rodriguez (Universidad Autonoma del Estado de Hidalgo), F. M. Almeraya (Universidad Autonoma de Nuevo Leon), and M. Marquez Casasola (Universidad Autonoma del Estado de Hidalgo)
In this work  the study of the behavior electrochemical of system continuous  flow rate over a system of carbon steel immersed in a synthetic corrosive medium (brine type born 1D196), in the absence and presence of hydrocarbon. Electrochemical techniques used were curves of polarization and electrochemical impedance spectroscopy. In the polarization curves, shows that the immersion time affects both the Anodic part and the cathodic, .showing that currents obtained are higher as the exposure time increases for systems in study (in the absence and presence of hydrocarbon), it is worth mentioning that the presence of hydrocarbon in the system increases currents in comparison to the system in the absence of hydrocarbon. Electrochemical impedance spectroscopy technique, shows that steel has great activity in the systems studied to be most noticeable at low frequencies and in the presence of hydrocarbon, since the spectrum shows a flattened semi-circle, with low values of  impedance and an inductive loop in the presence of hydrocarbon. This establishes the interaction of ions present in the solution with metal, favored by presence of hydrocarbon;  the adsorption stage governing the corrosion process, are also favored.