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A Mechanistic Study of Corrosion Inhibitor Partitioning and Performance in Sweet Corrosion Environments

Picture for A Mechanistic Study of Corrosion Inhibitor Partitioning and Performance in Sweet Corrosion Environments
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Nitrogen-based model CI compounds with different functional groups and sulfur containing synergist molecules were selected for mechanistic study. The oil-water partitioning behavior and corrosion performance of these model compounds were investigated and correlated to their chemical structures in a variety of sweet corrosion environments.

 

Product Number: 51317--9399-SG
ISBN: 9399 2017 CP
Author: Fang Cao
Publication Date: 2017
Industry: Chemical Inhibitors
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Nitrogen containing surfactants (e.g. amines amides imidazolines and quaternary ammonium salts) have been commonly used active corrosion inhibitors (CI) in commercial CI packages for many years to control corrosion of carbon steel pipelines in oil and gas industry. However in the literature not many systematic studies have been done to compare the partitioning behavior and corrosion performance of nitrogen based CIs with different functional groups and their inhibition mechanisms are currently not fully understood. In this study amine-based model CI compounds with different functional groups and sulfur containing synergist molecules were selected for mechanistic study. The oil-water partitioning behavior and corrosion performance of these model compounds were investigated and correlated to their chemical structures in a variety of sweet corrosion environments. The adsorption and desorption behavior of the model CIs were studied and correlated to their film persistency and performance. Mechanistic understanding of the structure-behavior-performance relationships of the model CIs and synergist molecules will not only significantly accelerate CI selection for new field development but also enhance the confidence and reliability of the existing CI programs.Nitrogen containing surfactants (e.g. amines amides imidazolines and quaternary ammonium salts) have been commonly used active corrosion inhibitors (CI) in commercial CI packages for many years to control corrosion of carbon steel pipelines in oil and gas industry. However in the literature not many systematic studies have been done to compare the partitioning behavior and corrosion performance of nitrogen based CIs with different functional groups and their inhibition mechanisms are currently not fully understood. In this study amine-based model CI compounds with different functional groups and sulfur containing synergist molecules were selected for mechanistic study. The oil-water partitioning behavior and corrosion performance of these model compounds were investigated and correlated to their chemical structures in a variety of sweet corrosion environments. The adsorption and desorption behavior of the model CIs were studied and correlated to their film persistency and performance. Mechanistic understanding of the structure-behavior-performance relationships of the model CIs and synergist molecules will not only significantly accelerate CI selection for new field development but also enhance the confidence and reliability of the existing CI programs.

Keywords: corrosion inhibitor, sweet corrosion, partition, film persistency

Nitrogen containing surfactants (e.g. amines amides imidazolines and quaternary ammonium salts) have been commonly used active corrosion inhibitors (CI) in commercial CI packages for many years to control corrosion of carbon steel pipelines in oil and gas industry. However in the literature not many systematic studies have been done to compare the partitioning behavior and corrosion performance of nitrogen based CIs with different functional groups and their inhibition mechanisms are currently not fully understood. In this study amine-based model CI compounds with different functional groups and sulfur containing synergist molecules were selected for mechanistic study. The oil-water partitioning behavior and corrosion performance of these model compounds were investigated and correlated to their chemical structures in a variety of sweet corrosion environments. The adsorption and desorption behavior of the model CIs were studied and correlated to their film persistency and performance. Mechanistic understanding of the structure-behavior-performance relationships of the model CIs and synergist molecules will not only significantly accelerate CI selection for new field development but also enhance the confidence and reliability of the existing CI programs.Nitrogen containing surfactants (e.g. amines amides imidazolines and quaternary ammonium salts) have been commonly used active corrosion inhibitors (CI) in commercial CI packages for many years to control corrosion of carbon steel pipelines in oil and gas industry. However in the literature not many systematic studies have been done to compare the partitioning behavior and corrosion performance of nitrogen based CIs with different functional groups and their inhibition mechanisms are currently not fully understood. In this study amine-based model CI compounds with different functional groups and sulfur containing synergist molecules were selected for mechanistic study. The oil-water partitioning behavior and corrosion performance of these model compounds were investigated and correlated to their chemical structures in a variety of sweet corrosion environments. The adsorption and desorption behavior of the model CIs were studied and correlated to their film persistency and performance. Mechanistic understanding of the structure-behavior-performance relationships of the model CIs and synergist molecules will not only significantly accelerate CI selection for new field development but also enhance the confidence and reliability of the existing CI programs.

Keywords: corrosion inhibitor, sweet corrosion, partition, film persistency

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