Green corrosion inhibitor for oilfield application I: Electrochemical assessment of 2-(2-pyridyl) benzimidazole for API X60 steel under sweet environment in NACE brine ID196

Onyeachu, Ikenna B.; Obot, I.B.; Sorour, Ahmad A.; Abdul-Rashid, Mohammed I.

doi:10.1016/j.corsci.2019.02.010

Cited by 153 publications

(88 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…TDPB (2) was synthesized following the modified procedure described above. Briefly, 1bromotetradecane (14.7 g, 53.3 mmol) was added to a solution of pyridine (3.6 g, 44.4 mmol) in toluene.…”

Section: Synthesis Of Tdpb (2)mentioning

confidence: 99%

“…The chemical composition of the low carbon steel (X-60) used for this investigation has been reported to contain above 96% Fe content [2]. It was cut into coupons of dimension 3 × 3 × 1 cm 3 in preparation for gravimetric and electrochemical measurements.…”

Section: Materials Preparationmentioning

confidence: 99%

“…Effective elongation, high yield and tensile strength properties of X-60 low carbon steel (X-60 mild steel) as one of the API 5L grade X mild steel have made it a suitable metallic material in various offshore and onshore applications. These attractive mechanical properties, as well as its low cost compared to other alternative materials, have been a major consideration for its enormous applications despite poor resistance to corrosion in different environments [1][2][3][4][5]. Acid pickling is one of the important industrial processes where various acids are utilized for surface cleaning of metals.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Impact of Degree of Hydrophilicity of Pyridinium Bromide Derivatives on HCl Pickling of X-60 Mild Steel: Experimental and Theoretical Evaluations

et al. 2020

View full text Add to dashboard Cite

Dodecyl pyridinium bromide (DDPB), tetradecyl pyridinium bromide (TDPB) and dodecyl 1,1′-bispyridinium dibromide (DDBPB) were successfully synthesized, characterized and evaluated for HCl pickling of X-60 low carbon steel. Order of corrosion inhibitions efficiencies, as revealed by both electrochemical and gravimetric studies, is TDPB > DDPB > DDBPB. The degree of hydrophilicity of inhibitors as predicted by a partition coefficient (Log P) and supported by a contact angle measurement was found to be responsible for their order of corrosion inhibition efficiencies. Adsorption of DDPB, TDPB, and DDBPB through the pyridinium nitrogen on mild steel surface was confirmed by ATR-FTIR and SEM-EDX analyses. The pyridinium nitrogen was found not to be the only factor responsible for their efficiency, but hydrophobes and the orientation of the hydrophilic ring were responsible, which incline to the deviation of experimental results and the order of Monte Carlo simulation adsorption energies. DDPB, TDPB, and DDBPB obey the Langmuir isotherm model despite major contributions of the film formed on the surface of X-60 mild steel on their overall inhibition corrosion resistance.

show abstract

Section: Synthesis Of Tdpb (2)mentioning

confidence: 99%

Section: Materials Preparationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Impact of Degree of Hydrophilicity of Pyridinium Bromide Derivatives on HCl Pickling of X-60 Mild Steel: Experimental and Theoretical Evaluations

et al. 2020

View full text Add to dashboard Cite

show abstract

“…The potential of benzimidazole and its derivatives as corrosion inhibitors has been widely reported, both in experimental [1][2][3][4] and theoretical studies [5][6][7]. Khaled studied the effect of substituents on the corrosion inhibition efficiency of benzimidazole, namely, 2aminobenzimidazole, 2-(2-pyridyl) benzimidazole, 2-aminomethylbenzimidazole, 2hydroxybenzimidazole using electrochemical impedance spectroscopy (EIS) on iron surfaces in 1 M HCl solutions.…”

Section: Introductionmentioning

confidence: 99%

Theoretical study of the substituent effect on corrosion inhibition performance of benzimidazole and its derivatives

Hadisaputra¹,

Purwoko²,

Wajdi³

et al. 2019

Int. J. Corros. Scale Inhib.

View full text Add to dashboard Cite

The substituent effects of electron-donating and-withdrawing on the efficiency of corrosion inhibition of benzimidazole and its derivatives have been studied by density functional theory DFT and Møller-Plesset perturbation theory MP2 calculations at aqueous medium. For this investigation, the corrosion inhibition efficiencies of the protonated and non-protonated spesies of benzimidazole and its derivatives were correlated with molecular electronic properties: high occupied molecular orbital (HOMO) and low unoccuppied molecular orbital (LUMO) energies, ionization potential, electron affinity, electronegativity and fraction number of electron transfer. The dipole moment and interaction energy represent the total surface coverage and the strength of the adsorption of inhibitors on the metal surface. Natural bond orbital NBO analysis in term of the second order interaction energies were used to study the contributions of the active sites of inhibitors toward corrosion inhibition performances. The ionization potential of the inhibitors has a strong influence on the efficiency of corrosion inhibitors. It was found that the MP2 method accurately predicted the ionization potential while the DFT failed to mimic the ionization potential of the experimental results. The linear correlation was shown between electronic properties and corrosion inhibition efficiency. Electron donating substituents increase the corrosion inhibition efficiency, whereas electron withdrawing substituents give the opposite effect. The NH 2 substituent contributes highest, whereas NO 2 provides the weakest contribution to the corrosion inhibition efficiency for both non-protonated and protonated species of inhibitors. The second order interaction energy indicated that heteroatom at imidazole position was the main center of electron donating and they received simultaneously significant amount of electron back donation from the metal.

show abstract

“…Heterocyclic molecules belong to a class of cyclic compounds harboring one or more heteroatoms, containing heteroatoms of the same element or even different ones different 1,2 . The role of heterocyclic compounds has become more and more important in recent years particularly in the design of new classes of compounds with demonstrated activities (corrosion inhibitors, dyes, and stabilizers…), as well in the medicinal field (vitamins, hormones, antibiotics, and antineoplastics …) 3,4 . Among these heterocyclic compounds are the benzimidazoles, the series of benzimidazole which is one of the most versatile in therapeutic chemistry.…”

Section: Introductionmentioning

confidence: 99%

DPPH scavenging activity of some Bis-benzimidazole derivatives

et al. 2019

View full text Add to dashboard Cite

As part of our research on substituted benzimidazoles, we are interested in the synthesis of new heterocyclic molecules. This new organic molecule is a subclass of quinolines with a wide variety of biological properties. In order to affect the binding of quinoline to our bis-benzimidazole derivatives, we have chosen the "azo" bond as a means of attachment. To achieve our goal, we investigated different parameters for the reactions to determine the conditions to obtain the best results. This article discusses the antioxidant activity of our molecules using the DPPH method.

show abstract

Green corrosion inhibitor for oilfield application I: Electrochemical assessment of 2-(2-pyridyl) benzimidazole for API X60 steel under sweet environment in NACE brine ID196

Cited by 153 publications

References 41 publications

Impact of Degree of Hydrophilicity of Pyridinium Bromide Derivatives on HCl Pickling of X-60 Mild Steel: Experimental and Theoretical Evaluations

Impact of Degree of Hydrophilicity of Pyridinium Bromide Derivatives on HCl Pickling of X-60 Mild Steel: Experimental and Theoretical Evaluations

Theoretical study of the substituent effect on corrosion inhibition performance of benzimidazole and its derivatives

DPPH scavenging activity of some Bis-benzimidazole derivatives

Contact Info

Product

Resources

About