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Mechanistic Correlations Between Single and Multicomponent Corrosion Inhibitor Blends for CO2 Corrosion Control

Picture for Mechanistic Correlations Between Single and Multicomponent Corrosion Inhibitor Blends for CO2 Corros
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Mechanistic information was obtained employing such electrochemical techniques as linear polarization, electrochemical frequency modulation and potentiodynamic polarization while using a rotating cylinder electrode system under CO2 corrosion conditions.

Product Number: 51317--9190-SG
ISBN: 9190 2017 CP
Author: Carlos Menendez
Publication Date: 2017
Industry: Science of Corrosion
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Information about the corrosion inhibition mechanism of multi-components blends and of their respective individual components is vital to identify the synergistic interactions needed to maximize performance. The mechanistic information was obtained employing such electrochemical techniques as linear polarization (LPR) electrochemical frequency modulation (EFM) and potentiodynamic polarization while using a rotating cylinder electrode (RCE) system under CO2 corrosion conditions. The employed electrochemical methods allow determination of anodic cathodic or mixed corrosion inhibition mechanisms. The studied individual corrosion inhibitor components included sulfur containing compounds an imidazoline a quaternized amine and a phosphate ester. Binary combinations of the individual components were also studied to correlate the results obtained for the individual components with the inhibition mechanism of blends identifying potential synergistic interactions.

Keywords: CO2 corrosion, corrosion inhibition, mechanisms

Information about the corrosion inhibition mechanism of multi-components blends and of their respective individual components is vital to identify the synergistic interactions needed to maximize performance. The mechanistic information was obtained employing such electrochemical techniques as linear polarization (LPR) electrochemical frequency modulation (EFM) and potentiodynamic polarization while using a rotating cylinder electrode (RCE) system under CO2 corrosion conditions. The employed electrochemical methods allow determination of anodic cathodic or mixed corrosion inhibition mechanisms. The studied individual corrosion inhibitor components included sulfur containing compounds an imidazoline a quaternized amine and a phosphate ester. Binary combinations of the individual components were also studied to correlate the results obtained for the individual components with the inhibition mechanism of blends identifying potential synergistic interactions.

Keywords: CO2 corrosion, corrosion inhibition, mechanisms

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