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98023 A STATISTICAL APPROACH FOR STUDYING CO2 CORROSION INHIBITION OF CARBON STEEL, USING ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY

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Product Number: 51300-98023-SG
ISBN: 98023 1998 CP
Author: R. Arenare, J.R. Vera
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The efficiency of an inhibitor was evaluated on precorroded samples at different temperatures, pH values and flow velocities. A procedure based on the use of electrochemical impedance spectroscopy (EIS) and rotating cylinder electrodes was implemented in order to study the effect of these variables. An experimental design was followed and the results were analyzed using statistical methods, The statistical analysis showed that flow velocity, followed by pH were the factors that most significantly influenced the corrosion rates of the steel at the conditions evaluated, after adding the inhibitor. Keywords: CO2 corrosion, inhibition, temperature effect, flow velocity, carbon dioxide, carbon steel, pre-corroded surface, impedance spectroscopy, analysis of variance, regression.
The efficiency of an inhibitor was evaluated on precorroded samples at different temperatures, pH values and flow velocities. A procedure based on the use of electrochemical impedance spectroscopy (EIS) and rotating cylinder electrodes was implemented in order to study the effect of these variables. An experimental design was followed and the results were analyzed using statistical methods, The statistical analysis showed that flow velocity, followed by pH were the factors that most significantly influenced the corrosion rates of the steel at the conditions evaluated, after adding the inhibitor. Keywords: CO2 corrosion, inhibition, temperature effect, flow velocity, carbon dioxide, carbon steel, pre-corroded surface, impedance spectroscopy, analysis of variance, regression.
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