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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: 51322-17552-SG
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Pyrolysis processes of post-consumer plastics are a promising chemical recycling route and a good alternative to disposal. Nevertheless, these processes are challenging for metallic materials since chlorine containing materials or biological components inside the feedstock can yield HCl and H2S, respectively, during cracking. In combination with high temperatures of the reactor zone metallic construction materials can be attacked by high-temperature corrosion.
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The spread of disbondment or corrosion from a scribe or holiday in a coating film, for which the terms rust creepage or undercutting are used in this paper is an important mechanism of coating degradation. The mechanism of rust creepage has been well studied by several authors who concur that the mechanism is driven by electrochemical reactions15. The reactions occurring at the discontinuity in the coating (scribe or holiday) involve an anodic reaction in which iron is dissolved. Adjacent to the anodic region, under the coating, a cathodic reaction occurs in which oxygen is reduced to hydroxyl ions.
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