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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Proceedings ArticleDOI
Evaluation of Flow Enhanced Preferential Weld Corrosion of X65 Pipeline Steel Using a Novel Submerged Impingement Jet
Journal ArticleDOI
Electrochemical behavior and localized corrosion of X65 steel in high salt concentration brines with CO 2 saturated
Investigation of Microbiologically Influenced Corrosion (MIC) by Sulfate Reducing Bacteria (SRB) Biofilms and Its Mitigation Using Enhanced Biocides
TL;DR: Wen et al. as discussed by the authors studied the influence of flow effects on Sulfate Reducing Bacteria (SRB) growth in a glass cell bioreactor and derived the correlation between the cylindrical coupon rotation rate in the glass cell and the average flow velocity in the pipeline.
Proceedings ArticleDOI
Machine Learning Based Predictive Models for CO2 Corrosion in Pipelines With Various Bending Angles
TL;DR: The most significant findings are that these two types of machine learning (ML) algorithms have higher efficiency and can predict new results in microseconds in contrast to hours or even days using CFD.
Journal Article
Effects of Temperature on Corrosion Behaviour of X70 Steel in CO2-Containing Formation Water
TL;DR: In this article, the corrosion behavior of X70 pipeline steel in CO2-containing formation water at various temperatures was studied in a high-temperature and high-pressure reactor via weight loss measurements, scanning electron microscope, X-ray diffraction, energy dispersive spectroscopy, and electrochemical methods.
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.
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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.