Journal ArticleDOI
An Electrochemical Model for Prediction of Corrosion of Mild Steel in Aqueous Carbon Dioxide Solutions
TLDR
In this paper, a predictive model was developed for uniform carbon dioxide (CO2) corrosion, based on modeling of individual electrochemical reactions in a water-CO2 system, taking into account the reactions of hydrogen ion (H+) reduction, carbonic acid (H2CO3) reduction, direct water reduction, oxygen reduction, and anodic dissolution of iron.Abstract:
A predictive model was developed for uniform carbon dioxide (CO2) corrosion, based on modeling of individual electrochemical reactions in a water-CO2 system. The model takes into account the electrochemical reactions of hydrogen ion (H+) reduction, carbonic acid (H2CO3) reduction, direct water reduction, oxygen reduction, and anodic dissolution of iron. The required electrochemical parameters (e.g., exchange current densities and Tafel slopes) for different reactions were determined from experiments conducted in glass cells. The corrosion process was monitored using polarization resistance, potentiodynamic sweep, electrochemical impedance, and weight-loss measurements. The model was calibrated for two mild steels over a range of parameters: temperature (t) = 20°C to 80°C, pH = 3 to 6, partial pressure of CO2 (PCO2) = 0 bar to 1 bar (0 kPa to 100 kPa), and ω = 0 rpm to 5,000 rpm (vp = 0 m/s to 2.5 m/s). The model was applicable for uniform corrosion with no protective films present. Performance of...read more
Citations
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Dissertation
A Combined Experimental and Modelling Approach to Elucidate FeCO3 Scale Formation Kinetics
De Motte,Rehan Anthony +1 more
TL;DR: In this article, a combined experimental and modeling approach is carried out to investigate the development in the morphology of the FeCO3 film under different environmental conditions and its consequent effect on the degradation rates of a pipeline.
Journal ArticleDOI
A study on the behavior of CO 2 corrosion on pipeline using computational fluid dynamics, experimental and artificial neural network approach
Journal ArticleDOI
Corrosion Rate of Carbon Steel for Flowline and Pipeline as Transmission Pipe in Natural Gas Production with Co2 Content
TL;DR: In this article, the authors investigated the corrosion rate of carbon steel as flowline and pipeline in natural gas production with CO2 content and found that the corrosion rates of typical carbon steel in environments containing CO2 ranged between 15-28 mpy.
Journal ArticleDOI
Effect of Fe ion concentration on fatigue life of carbon steel in aqueous CO2 environment
TL;DR: In this paper, the corrosion fatigue behavior of steel armours used in the flexible pipes, in aqueous solutions initially containing different concentrations of Fe2+, was investigated by four-point bending testing under saturated 1 bar CO2 condition.
Journal ArticleDOI
Effect of Temperature, Bicarbonate, and MEG Concentrations on CO2 Corrosion of Carbon Steels
TL;DR: In this paper, the CO2 corrosion of two mild steels has been studied as function of monoethylene glycol (MEG) and bicarbonate concentration at conditions where FeCO3 precipitation was sparse.
References
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Book
CRC Handbook of Chemistry and Physics
TL;DR: CRC handbook of chemistry and physics, CRC Handbook of Chemistry and Physics, CRC handbook as discussed by the authors, CRC Handbook for Chemistry and Physiology, CRC Handbook for Physics,
Journal ArticleDOI
Physical Chemistry, 2nd Ed.
Book
Fundamentals of electrochemistry
TL;DR: In this article, a rigorous outline of the basic concepts forming the subject matter of modern theoretical and applied electrochemistry, originally published in Russian in 1988 by Khimiya Press, Moscow.