Molecular modeling study on inhibition performance of imidazolines for mild steel in CO2 corrosion

Liu, Jinxiang; Yu, Weizhao; Zhang, Jun; Hu, Songqing; You, Li; Qiao, Guimin

doi:10.1016/j.apsusc.2010.02.082

Cited by 54 publications

(24 citation statements)

References 29 publications

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“…Various corrosion controlling methods were used to protect the metals such as protective coatings, cathodic protection and the use of corrosion inhibitors. Among these methods, the use of corrosion inhibitors is the most convenient and practical method to protect the metals from attack of corrosion [2]. In this method, corrosion inhibitor molecules get adsorbed on the surface of the mild steel from the bulk of the solution, which blocks the active corrosion sites, which retards the corrosion [3].…”

Section: Introductionmentioning

confidence: 99%

Inhibition study of mild steel corrosion in 1 M hydrochloric acid solution by 2-chloro 3-formyl quinoline

Prasanna¹,

Praveen²,

Hebbar³

et al. 2015

Int J Ind Chem

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The corrosion inhibition study of 2-chloro 3-formyl quinoline was conducted for mild steel corrosion in 1 M hydrochloric acid solution at a temperature range of 303-333 K by chemical and electrochemical measurements. Inhibition efficiency increases with the increase of inhibitor concentration but decreases with increasing temperature. The polarization measurement reveals that the inhibitor acts as the mixed type and this inhibition effect is attributed to the adsorption of the inhibitor on the surface of mild steel from the bulk of the solution. The adsorption of 2-chloro 3-formyl quinoline on mild steel surface is exothermic and obeys the Freundlich adsorption isotherm. Thermodynamic parameters and activation parameters were calculated and discussed in depth. Scanning electron microscopy (SEM) micrographs were used to investigate the surface morphology of the steel sample in presence and absence of inhibitor.

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Section: Introductionmentioning

confidence: 99%

Inhibition study of mild steel corrosion in 1 M hydrochloric acid solution by 2-chloro 3-formyl quinoline

Prasanna¹,

Praveen²,

Hebbar³

et al. 2015

Int J Ind Chem

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“…As stated by Liu et al [7] and Edwards et al [16], a metal surface that has water bounded to it will influence the adsorption of the imidazoline ring by both restricting the available surface area for adsorption to occur and breaking down the N=C double bond of the imidazoline molecule. Energy in excess of 167.5 kJ/mol must be obtained in order to displace the water.…”

Section: = − S (17)mentioning

confidence: 99%

“…Adsorption to the metal surface occurs at the ring and at times, the pendant chain, due to the high dipole value between the metal surface and the imidazoline [5], leaving the alkyl chains to form a protective film [6]. As multiple adsorptions occur, a self-assembled mono-layer will form that has the potential to develop into a bilayer or multilayer given the right temperature, concentration and solubility conditions [7].…”

Section: Introductionmentioning

confidence: 99%

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Effectiveness of Imidazoline in Mitigating Transport Pipeline Corrosion

Akindeju¹,

Obanijesu²,

Boyanich³

et al. 2017

Struct Chem Crystallogr Commun

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The detrimental effects of corrosion in transportation pipelines have been a primary issue for the oil and gas industry for many years. Every year, millions of dollars are invested into corrosion inhibitors in order to minimise corrosions implication on flow assurance. Imidazoline and its derivatives have been a prevalent corrosion inhibitor owing to its good adsorption characteristics and film forming capabilities; however, there remains some uncertainty in literature pertaining to the effect of temperature on its performance. GULP simulation software was used to study the effect of temperature on the thermodynamic properties of imidazoline in carbon steel pipelines. Entropy, heat capacity, Helmholtz free energy, entropy and Gibbs free energy were influenced by changes in temperature. An optimal operating range was found to exist between 298K and 333K. Within this range, spontaneous chemisorption was occurring and the imidazoline molecules possessed enough kinetic energy to displace any bound water on the metal surface to permit the preferential adsorption of the imidazoline head group. However, beyond 333K, the kinetic energy of the system hindered the steady formation of the protective barrier, reducing its inhibitive potential. This study agrees with previous literature on the effect of temperature on the ability of imidazoline as a corrosion inhibitor, however further studies into the effect of pipeline conditions and imidazoline molecular structure are needed in order to affirm the optimal applicability of imidazoline as a corrosion inhibitor.

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“…The aggressive nature of acid causes dissolution of material during the course of cleaning process which leads to material loss [1][2][3]. The most effective approach to minimize this material loss is, use of organic 1 3 compounds as a corrosion inhibitor in acid solution.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of ruthenium-promoted Co/CNT nanocatalyst performance using microemulsion technique

Tavasoli¹,

Tabyar²,

Karimi³

2014

International Journal of Industrial Chemistry

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The corrosion inhibition property of electrochemically synthesized 2,2′-disulfanediyldianiline compound was investigated for mild steel in 1 M HCl using electrochemical and weight loss techniques. The morphology of steel surface was examined using SEM and optical microscopy. Thermodynamic parameters were determined and discussed. To study the effect of the molecular structure of inhibitor on its inhibitive performance, quantum chemical studies were performed using density functional theory by B3LYP/6-311G (d,p) basis set. The theoretical studies depicted -N and -S atoms as the adsorption centers in molecule. Graphical abstract

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Molecular modeling study on inhibition performance of imidazolines for mild steel in CO2 corrosion

Cited by 54 publications

References 29 publications

Inhibition study of mild steel corrosion in 1 M hydrochloric acid solution by 2-chloro 3-formyl quinoline

Inhibition study of mild steel corrosion in 1 M hydrochloric acid solution by 2-chloro 3-formyl quinoline

Effectiveness of Imidazoline in Mitigating Transport Pipeline Corrosion

Enhancement of ruthenium-promoted Co/CNT nanocatalyst performance using microemulsion technique

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