Effect of 2-mercaptobenzothiazole concentration on sour-corrosion behavior of API X60 pipeline steel: Electrochemical parameters and adsorption mechanism

Sabzi, Masoud; Jozani, Amir Hayati; Zeidvandi, Farzad; Sadeghi, M R; Dezfuli, Saeid Mersagh

doi:10.1007/s12613-020-2156-3

Cited by 22 publications

(9 citation statements)

References 87 publications

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“…The correlation coefficients R 2 of the fitting results by the Langmuir equation are higher than those by Freundlich. It can be seen that the Langmuir equation can more accurately describe the adsorption process of GO by red sandstone, which is mainly based on uniform monolayer adsorption [57]. GO attached to the surface of red sandstone can be clearly seen from the SEM and TEM images in Figures 3(e) and 2(f).…”

Section: Results and Analysismentioning

confidence: 99%

Study on the Adsorption Performance and Adsorption Mechanism of Graphene Oxide by Red Sandstone in Aqueous Solution

Dai

Kang

et al. 2022

Adsorption Science & Technology

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In order to deal with the increasingly serious pollution of graphene oxide (GO) to the environment. In this paper, the use of red sandstone to treat GO-contaminated aqueous solution is proposed for the first time, and the adsorption capacity and adsorption mechanism of red sandstone to GO are discussed. The controlled variable method was used to explore the optimal pH, concentration, and quality of red sandstone for GO aqueous solution. The adsorption isotherm, thermodynamics, and adsorption kinetics were fitted. Adsorption characterization tests were performed using XRD, AFM, XPS, FT-IR, SAP, TEM, SAP, laser particle size analyzer, and SEM. The results show that when T = 303 K , the optimum adsorption condition of red sandstone for GO is pH = 4 , the mass of the adsorbent is 40 mg, and when the concentration of GO is 80 mg/L, the adsorption capacity is 90 mg/g. The adsorption isotherm model fits the Langmuir model. The adsorption thermodynamic experiments and fitting results show that the reaction is endothermic. XRD and FT-IR tests showed that CaCO3 in red sandstone was involved in the adsorption of GO. SEM, TEM, and AFM microscopic results showed that GO was adsorbed on the surface of red sandstone particles. The XPS test showed that Ca2+ in red sandstone and C=O bond in GO undergo ionic or coordination reaction. The adsorption kinetics fit a pseudo-second-order kinetic model. This study will provide some references for the removal of GO in the environment and the interaction mechanism with natural minerals.

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Section: Results and Analysismentioning

confidence: 99%

Study on the Adsorption Performance and Adsorption Mechanism of Graphene Oxide by Red Sandstone in Aqueous Solution

Dai

Kang

et al. 2022

Adsorption Science & Technology

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“…The electrochemical Table 7. Some Corrosion Inhibitors for API Steels in Hydrogen Sulfide (H 2 S) 114,115,118,119 As can be seen, research works on CIs for API steels in this medium are limited despite the fact that H 2 S represents a constant problem for the oil industry at any exploration and oil and gas production stage. Notwithstanding, the structures of the studied CIs were based mainly on aromatic rings that could be linked to heterocycles (N and S) and/or hydroxyl, carboxyl, or amide functional groups, just to mention a few, reaching IE > 90% at relatively high C INH , thus offering an opportunity area for the research and development of new inhibitors capable of mitigating this problematic situation.…”

Section: Corrosion Inhibition Of Sourmentioning

confidence: 99%

Current Overview of Corrosion Inhibition of API Steel in Different Environments

Díaz-Jiménez,

Gómez-Sánchez,

Likhanova

et al. 2024

ACS Omega

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“…Organic inhibitors with heterocyclic organic structures containing pi conjugated structure and heteroatoms, like N, S, O and P, capable of adsorbing on the metal surfaces via physisorption or chemisorption adsorption, are often being most effective [14]. Commonly adopted corrosion inhibitors are organic compounds including imidazolines, azoles, Schiff bases, amines and their derived salts [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the corrosion inhibition potentials of some 2-(4-(substituted)arylidene)-1H-indene-1,3-dione derivatives: density functional theory and molecular dynamics simulation

Oyeneyin

Ojo

Ipinloju

et al. 2022

Beni-Suef Univ J Basic Appl Sci

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Background Corrosion is a threat to material strength and durability. Electron-rich organic inhibitor may offer good corrosion mitigation potentials. In this work, anti-corrosion potentials of nine derivatives of 1H-indene-1,3-dione have been investigated using density functional theory (DFT) approach and molecular dynamics (MD) simulation. Chemical reactivity descriptors like energies of lowest unoccupied molecular orbital (ELUMO), highest occupied molecular orbital (EHOMO), electron affinity (A), ionization potential (I), energy gap (ΔEgap), global hardness (η), global softness (σ), electronegativity (χ), electrophilicity (ω), number of transferred electrons (ΔN) and back-donation (ΔEback-donation) were computed at DFT/B3LYP/6-31G(d) theoretical level. The local reactive sites and the charge partitioning on the compounds were studied using Fukui indices and molecular electrostatic potential (MEP) surface analysis. The adsorption behavior and the binding energy of the inhibitors on Fe (110) surface in hydrochloric acid solution were investigated using MD simulation. Results The high chemical reactivity, kinetic instability and good corrosion inhibition potentials demonstrated by the inhibitors are rationalized based on their high EHOMO, A, σ, ΔN, ΔEback-donation, and low ΔEgap, ELUMO, I and η. A wide difference of approximately 2.4–3.2 eV between the electronegativities of iron and the 1H-inden-1,3-diones suggests good charge transfer tendency from the latter to the low-lying vacant d-orbitals of iron. The heteroatoms (O and N) and the aromatic moieties are the nucleophilic sites on the inhibitors for effective adsorption on the metal surface as shown by condensed Fukui dual functions and MEP analysis. The MD simulation shows good interaction and strong binding energy between the inhibitor and Fe (110) surface. Conclusions Effective surface coverage and displacement of H3O+, Cl− and water molecules from Fe (110) surface by the inhibitors indicate good corrosion inhibition properties of the inden-1,3-diones. 2-((4,7-dimethylnaphthalen-1-yl)methylene)-1H-indene-1,3(2H)-dione display low energy gap, strongest binding interaction and most stabilized iron-inhibitor configuration, hence, the best anti-corrosion potential. Graphical abstract

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Effect of 2-mercaptobenzothiazole concentration on sour-corrosion behavior of API X60 pipeline steel: Electrochemical parameters and adsorption mechanism

Cited by 22 publications

References 87 publications

Study on the Adsorption Performance and Adsorption Mechanism of Graphene Oxide by Red Sandstone in Aqueous Solution

Study on the Adsorption Performance and Adsorption Mechanism of Graphene Oxide by Red Sandstone in Aqueous Solution

Current Overview of Corrosion Inhibition of API Steel in Different Environments

Investigation of the corrosion inhibition potentials of some 2-(4-(substituted)arylidene)-1H-indene-1,3-dione derivatives: density functional theory and molecular dynamics simulation

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