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Effect Of N-Furfuryil-Aniline And N-Furyl-C-Phenyl-Nitrone On Corrosion Inhibition Of Low Carbon Steel In 3% Nacl

Effect Of N-Furfuryil-Aniline And N-Furyl-C-Phenyl-Nitrone On Corrosion Inhibition Of Low Carbon Steel In 3% Nacl
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In the hydrocarbon industry, internal corrosion is one of the most worrisome threats because it can cause catastrophic failures in the pipelines and cause harm to people and the environment. Some authors mention that internal corrosion damage is due to components such as H2S, CO2, mercaptans, sulfate-reducing bacteria, and suspended solids. These variables lead to thickness losses in the ducts, which contributes to the increase in the rate of deterioration.1 2 3 study reported by Askari et al, shows that the internal corrosion rate can be so high that it can consume the 3-6mm allowed for the pipeline in a year, which leads to irreparable economic losses.4 

Product Number: 51322-18167-SG
Author: A. Fonseca, E. Almanza, W. Rozo, E. Vera
Publication Date: 2022
Industries: Science of Corrosion , Corrosion Monitoring and Control
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$20.00
$20.00

Carbon steel is one of the most commonly used metals in the oil, gas, and hydrocarbons transport industry, given its mechanical properties and low production cost; however, its low corrosion resistance to different aggressive environments has been considerably reported. Worldwide, there is an interest in mitigating corrosion and minimizing the associated cost. Inhibitors have become one of the best practical methods to avoid internal corrosion damage, especially in hydrocarbons transport lines. This investigation aims to develop and evaluate the molecules n-furfuryil-aniline (NFA) and n-furil-c-phenyl-nitrone (NFCPN) in 3% NaCl on low carbon steel using Tafel polarization and impedance spectroscopy measurement techniques. Concentrations of the molecule of 5, 10, 25, 50, and 100 ppm were used in this study. The results show that the inhibition efficiencies increased in the presence of the molecules. The inhibitors presented efficiencies up to 80% showing that the inhibitors are effective in helping to reduce and slowing down the corrosion process that occurs to the carbon steel samples evaluated. 

Carbon steel is one of the most commonly used metals in the oil, gas, and hydrocarbons transport industry, given its mechanical properties and low production cost; however, its low corrosion resistance to different aggressive environments has been considerably reported. Worldwide, there is an interest in mitigating corrosion and minimizing the associated cost. Inhibitors have become one of the best practical methods to avoid internal corrosion damage, especially in hydrocarbons transport lines. This investigation aims to develop and evaluate the molecules n-furfuryil-aniline (NFA) and n-furil-c-phenyl-nitrone (NFCPN) in 3% NaCl on low carbon steel using Tafel polarization and impedance spectroscopy measurement techniques. Concentrations of the molecule of 5, 10, 25, 50, and 100 ppm were used in this study. The results show that the inhibition efficiencies increased in the presence of the molecules. The inhibitors presented efficiencies up to 80% showing that the inhibitors are effective in helping to reduce and slowing down the corrosion process that occurs to the carbon steel samples evaluated. 

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Product Number: 51322-17895-SG
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In the oil and gas industry, long-distance transportation of petroleum and related products is usually carried out in large-diameter carbon steel pipelines. Water present with the oil, along with corrosive species such as CO2, H2S and organic acids, causes severe corrosion of the inner pipe walls.1 An effective method of controlling corrosion is to continuously inject corrosion inhibitors into pipelines conveying oil-water mixtures. As corrosion occurs on water wetted metal surfaces, corrosion inhibitor (CI) molecules form protective films which retard electrochemical reaction rates at the water-metal interface,2 thereby protecting carbon steel pipes against CO2 ("sweet") corrosion and H2S ("sour") corrosion. Most commercial CIs are a complex mixture of several compounds that contain surfactant-type active ingredients, such as imidazoline, amine, phosphate ester, and quaternary ammonium derivatives.
Electrochemical and Morphological Investigation of Corrosion Behavior of C1018 in a Subcritical and Supercritical CO2 Environment with Presence of H2S
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Electrochemical And Morphological Investigation Of Corrosion Behavior Of Carbon Steel In A Supercritical CO2 Environment With Presence Of H2S.

Product Number: 51322-18005-SG
Author: Yuan Ding, Chin-Hua “Jim” Cheng, Raymundo Case
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Supercritical CO2 storage has been gaining more attention due to its wider application. It is one of the desirable solutions for reducing CO2 emission, which is an important contributor to the global climate crisis. In other cases, some of the early applications were focused on the oil and gas industry, by using supercritical CO2 to sequence the mature wells for better production [1],[2]. In those environments, C1018 carbon steel was extensively used, due to its good balance of toughness, strength, and ductility as well as its excellent weldability. 
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