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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Modelling the Electrochemical Behaviour of Austenitic Stainless Steel in Some Selected Media
TL;DR: In this article, the electrochemical behavior of Austenitic stainless steel in cassava fluid, maize pulp and sea-water was studied and the predicted models generated were based on regression analysis of the statistical data got from experimental results.
Journal ArticleDOI
Corrosion sensitivity analysis of pipelines in CO2 and H2S coexisting environment in the South China Sea
TL;DR: In this paper , the authors investigate the sensitivity of pipelines of oil and gas wells under complex environmental conditions (i.e., the primary and secondary relationship of the influence of different environmental factors on pipeline corrosion).
Proceedings ArticleDOI
A Hybrid Physics and Active Learning Model For CFD-Based Pipeline CO2 and O2 Corrosion Prediction
TL;DR: In this article , the authors developed an innovative hybrid model that combines principal physics and advanced machine learning (ML) method to build a single model that can predict multiple corrosion mechanisms involving CO2 and O2.
An Integrated Prediction Model for H2S/CO2 Corrosion in the Pipe of Refinery
TL;DR: In this article, the authors present a table of contributors and funders and fund-strategies for fund-raising in the field of computer science. But they do not specify any specific types of contributors.
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
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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.