Producción Científica Profesorado

Behaviour of Carbon Steel in the Presence of Hydrocarbon and a Pyridinic Compound



Veloz Rodríguez, María Aurora

2014

L. D. López León1, M. A. Veloz Rodríguez1,*, V. E. Reyes Cruz1, S. A. Pérez García2, F. J. Olguín Coca1 (2014). Behaviour of Carbon Steel in the Presence of Hydrocarbon and a Pyridinic Compound. International Journal of Electrochemical Science, 1488-1496.


Abstract


The electrochemical behaviour of a pyridinic compound, as corrosion inhibitor, on a system of AISI 1018 carbon steel in a synthetic corrosive medium (brine type NACE 1D196), in the absence and presence of hydrocarbon (kerosene), was investigated in this work. Electrochemical techniques used were polarisation curves and electrochemical impedance spectroscopy. In the polarization curves, it is observed that the presence of the corrosion inhibitor in the system affects both the anodic and the cathodic branches, showing that currents obtained are lower with the presence of the inhibitor. On the other hand, the inhibitor efficiency decreases with the presence of hydrocarbon in the system evaluated. Electrochemical impedance spectroscopy shows that steel has great activity in the system studied being more noticeable at low frequencies and in the presence of hydrocarbon. This shows the interaction of ions present in the solution with metal, favoured by the presence of hydrocarbon. The analysis with x-ray Photoelectron Spectroscopy (XPS) showed that the presence of hydrocarbon in the system allows the deposition of several Cl- crystals on the metal surface. Also, there is an increase in Ca, Mg and C with a strong signal of iron, suggesting the presence of iron carbonate and iron hydroxides.



Producto de Investigación UAEH




Artículos relacionados

Pyrite?Arsenopyrite Galvanic Interaction and Electrochemical Reactivity

Analysis of the electrochemical reactivity of natural hemozoin and ?-hemozoin in the presence of ant...

Comparación electroquímica de compuestos quirales tipo imina

Corrosion behavior of carbon steel in sour waste water varying pH

Voltammetric evaluation of the electrode material on the oxidation of cyanide catalyzed by copper io...

Estudio preliminar de la electroremediación de suelos contaminados de la zona minera de Zimapán en u...

Microwave-assisted synthesis of 2-(2-pyridyl)azoles. Study of their corrosion inhibiting properties

Simulación matemática la ley de Darcy en celda de electroremediación de suelos

ESTUDIO COMPARATIVO Y CARACTERIZACIÓN DE CAOLINES COMERCIALES DISPONIBLES EN LA ZONA DE PACHUCA, HID...

Estudio electroquímico de la influencia del cobre en la recuperación de plata sobre un sustratos de ...