Heterocyclic compounds as corrosion inhibitors for iron alloys in various industrial processes: A review

Sheetal,; Kumar Singh, Ashish; Thakur, Sanjeeve; Pani, Balaram; Singh, Manjeet

doi:10.1016/j.jiec.2023.10.005

Cited by 4 publications

(1 citation statement)

References 128 publications

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“…The corrosive nature of these gases can severely damage equipment and infrastructure through various corrosion mechanisms, resulting in expensive repairs, production losses, and safety hazards. ,− H 2 S and CO 2 often coexist in sour gas, and their combined effect can be more aggressive than the individual effects of each gas. − ,, Corrosion inhibitors play a critical role in mitigating the corrosion problems associated with sour gas development. , These chemicals function by slowing the rate of corrosion, thereby extending the life of equipment and infrastructure. ,,, The inhibitor molecules attach to the metal surface and form a protective barrier, preventing corrosive substances from reaching the metal. ,,, Certain inhibitors have the ability to react with corrosive substances, resulting in the formation of insoluble precipitates. This process effectively removes the corrosive agents from the solution, thereby preventing damage to the metal .…”

Section: Introductionmentioning

confidence: 99%

Highly Biodegradable Corrosion Inhibitors Derived from Sunflower Oil for Mild Steel Corrosion in CO₂- and H₂S-Saturated Oilfield-Produced Water

Chen,

Farhadian,

Iravani

et al. 2024

Energy Fuels

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Sour gas reservoirs represent significant sources of energy with substantial development potential, playing a vital role in enhancing energy security and diversity. However, the production and processing of sour gas pose serious challenges as a result of its corrosive nature. The literature reveals a lack of efficient green inhibitors for sour media, because traditional inhibitors often raise environmental concerns. Here, sunflower oil was employed to develop novel quaternary ammonium salts based on pyrrolidine (PyQAs) and piperidine (PiQAs), serving as highly biodegradable and effective sour corrosion inhibitors. The synthesis process involved a straightforward two-step reaction under mild and solventfree conditions. Experimental results demonstrated a remarkable 95% reduction in the corrosion rate in the presence of PyQAs and PiQAs. PiQAs exhibited higher performance, achieving a remarkable 95.2% inhibition efficiency at a concentration of 70 × 10 −5 M. Quantum calculations indicated that PiQAs, with its narrower band gap and enhanced electron transfer ability, emerged as a more effective inhibitor. Moreover, the molecular structures of PyQAs and PiQAs, particularly the electron-donating alkyl chains and the ester groups, facilitated their adsorption onto the steel surface. The inhibition mechanism was attributed to the formation of a dense film on the mild steel surface, which hindered the transport of corrosive ions and decreased the electrochemical reactions associated with corrosion. Atomic force microscopy images showed that the addition of PyQAs and PiQAs significantly reduced the surface roughness. Furthermore, both PyQAs and PiQAs were highly biodegradable, with biodegradation degrees of 57.8 and 53.1%, respectively, highlighting their environmental compatibility. These compounds offer a promising balance of corrosion inhibition performance and biodegradability, making them attractive alternatives to traditional inhibitors for industrial applications.

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Section: Introductionmentioning

confidence: 99%

Highly Biodegradable Corrosion Inhibitors Derived from Sunflower Oil for Mild Steel Corrosion in CO₂- and H₂S-Saturated Oilfield-Produced Water

Chen,

Farhadian,

Iravani

et al. 2024

Energy Fuels

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Exploring corrosion protection for mild steel in HCl solution: An experimental and theoretical analysis of an antipyrine derivative as an anticorrosion agent

Aljibori,

Alamiery,

Gaaz

et al. 2024

Carbon Neutralization

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The corrosion of mild steel in HCl solution remains a critical issue in various industrial applications. In the quest for effective corrosion inhibitors, 4‐(2‐Hydroxy‐3‐Methoxybenzylideneamino) antipyrine (HMBA) has emerged as a promising candidate. This study investigates the inhibitory properties of HMBA on mild steel corrosion in HCl solution through weight loss measurements, electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization (PDP) techniques. The experiments spanned over various time periods, including 1, 5, 10, 24, and 48 h. The results reveal that HMBA exhibits exceptional inhibition efficiency (IE), with an impressive 94.7% inhibition rate. This outstanding performance underscores its potential as a corrosion inhibitor for mild steel in aggressive HCl environments. To elucidate the adsorption behavior of HMBA on the mild steel surface, Langmuir isotherm modeling was employed, demonstrating a strong correlation between the experimental data and the Langmuir adsorption isotherm model. Furthermore, the study employs density functional theory (DFT) to gain insight into the mechanism of HMBA inhibition. DFT calculations suggest that both physisorption and chemisorption mechanisms are involved in the interaction between HMBA and the mild steel surface. The calculated Gibbs free energy of adsorption () is found to be approximately , indicating a spontaneous and energetically favorable adsorption process. In conclusion, HMBA emerges as a highly effective corrosion inhibitor for mild steel in HCl solution, offering impressive IE over various time intervals. The combination of experimental techniques, such as WL, EIS, and PDP, along with computational insights from DFT calculations, provides an understanding of the inhibitory properties of HMBA. These findings hold great promise for the development of environmentally friendly corrosion inhibitors in industrial applications.

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Electrochemical behavior of mild steel coated with long alkyl-chain benzothiazole derivatives in acid solution: Effect of aliphatic chain length

Suhasaria,

Senapati,

Rout

et al. 2024

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Heterocyclic compounds as corrosion inhibitors for iron alloys in various industrial processes: A review

Cited by 4 publications

References 128 publications

Highly Biodegradable Corrosion Inhibitors Derived from Sunflower Oil for Mild Steel Corrosion in CO₂- and H₂S-Saturated Oilfield-Produced Water

Highly Biodegradable Corrosion Inhibitors Derived from Sunflower Oil for Mild Steel Corrosion in CO₂- and H₂S-Saturated Oilfield-Produced Water

Exploring corrosion protection for mild steel in HCl solution: An experimental and theoretical analysis of an antipyrine derivative as an anticorrosion agent

Electrochemical behavior of mild steel coated with long alkyl-chain benzothiazole derivatives in acid solution: Effect of aliphatic chain length

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Heterocyclic compounds as corrosion inhibitors for iron alloys in various industrial processes: A review

Cited by 4 publications

References 128 publications

Highly Biodegradable Corrosion Inhibitors Derived from Sunflower Oil for Mild Steel Corrosion in CO2- and H2S-Saturated Oilfield-Produced Water

Highly Biodegradable Corrosion Inhibitors Derived from Sunflower Oil for Mild Steel Corrosion in CO2- and H2S-Saturated Oilfield-Produced Water

Exploring corrosion protection for mild steel in HCl solution: An experimental and theoretical analysis of an antipyrine derivative as an anticorrosion agent

Electrochemical behavior of mild steel coated with long alkyl-chain benzothiazole derivatives in acid solution: Effect of aliphatic chain length

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Highly Biodegradable Corrosion Inhibitors Derived from Sunflower Oil for Mild Steel Corrosion in CO₂- and H₂S-Saturated Oilfield-Produced Water

Highly Biodegradable Corrosion Inhibitors Derived from Sunflower Oil for Mild Steel Corrosion in CO₂- and H₂S-Saturated Oilfield-Produced Water