Phenolic and non-Phenolic Fractions of the Olive Oil Mill Wastewaters as Corrosion Inhibitor for Steel in HCl medium

Bouknana, Driss; Hammouti, B; Messali, Mouslim; Aouniti, A.; Sbaa, Mohamed

doi:10.4152/pea.201401001

Cited by 14 publications

(14 citation statements)

References 47 publications

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“…A new equivalent circuit (Model B) is proposed, in which Rs is the solution resistance, Rct and CPEdl refer to the charge transfer process and Rf and CPEf are the resistance and capacitance of adsorbed NCD film on the steel surface. RL and L are the inductance and resistance assigned to a slow frequency intermediate process, indicating the charge transfer of steel dissolution in the presence of adsorbed NCD film [34]. As shown in Figure 4, the experimental data can be well matched with the fitting lines obtained according to the proposed equivalent circuits.…”

Section: The Effect Of Ncd Concentrationsupporting

confidence: 57%

Effective Corrosion Inhibition of Carbon Steel in Hydrochloric Acid by Dopamine-Produced Carbon Dots

Cui

Zheng

2021

Polymers

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In present study, novel nitrogen doped carbon dots (NCDs) are synthesized using a green material—dopamine—as a precursor and studied as corrosion inhibitors for Q235 carbon steel in 1 M HCl solution. According to the electrochemical results, it is found that NCDs acting as a mixed-type corrosion inhibitor can effectively retard the acid corrosion of carbon steel, and their inhibition efficiency increases with the concentration increasing from 50 to 400 ppm. The highest inhibition efficiency is 96.1% in the presence of 400 ppm NCDs at room temperature. Additionally, the adsorption of NCDs obeys the Langmuir adsorption isotherm. In addition, weight loss results show that the inhibition efficiency in the presence of 400 ppm NCDs increases with prolonged exposure time and rising temperature (298–328 K), owing to the strong adsorption of NCDs on the steel surface, and the η value is 92.2% at 60 h of immersion and 86.2%, 89.1%, 90.6% and 92.9% at 298, 308, 318 and 328 K, respectively. Surface analysis by scanning electron microscope (SEM), laser scanning confocal microscope (LSCM) and X-ray photoelectron spectroscopy (XPS) further proves the formation of a protective NCD film on the steel surface.

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Section: The Effect Of Ncd Concentrationsupporting

confidence: 57%

Effective Corrosion Inhibition of Carbon Steel in Hydrochloric Acid by Dopamine-Produced Carbon Dots

Cui

Zheng

2021

Polymers

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“…The advantages of using plant extracts for steel corrosion control under acidic media are that the inhibitor is readily soluble and becomes their corresponding acid salt which leads to both economic and environmental benefits [27]. Many plant extracts have been used as effective corrosion inhibitors of iron or steel in acidic media such as olive [10]. Many recent researches have adopted this trend and carried out their work on naturally occurring substances.…”

Section: Introductionmentioning

confidence: 99%

Aqueous extracts of olive roots, stems, and leaves as eco-friendly corrosion inhibitor for steel in 1 MHCl medium

et al. 2015

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This work is devoted to examine the effectiveness of the aqueous extracts of olive (Olea europaea L.) leaves, roots, and stems on corrosion of mild steel in 1 M HCl solution using the weight loss measurement at various temperature and concentration effects. Polarization curves and electrochemical impedance spectroscopy (EIS) methods were employed to evaluate corrosion rate and inhibition efficiency. Corrosion inhibition efficiencies of 89.24, 88.84, and 89.83 % were achieved in 1 M HCl for olive root extract (ORE), olive stem extract (OSE), and olive leaf extract (OLE), respectively. It was found that the different extracts act as a good corrosion inhibitor for the tested system. The inhibitive action of the extract is discussed with a view to the adsorption of its components onto the steel surface which made a barrier to mass and charge transfer. The adsorption of extract components onto the steel surface was found to be a spontaneous process and increases the activation energy of the corrosion process. The inhibition efficiency is greatly reduced as the temperature increased. Experimental results show that corrosion inhibition efficiency increases with concentration of the sample extract. Polarization studies show that olive leaf, root, and stem extracts act as a mixed inhibitor.

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“…Several authors have evaluated the property of OMW to act as a corrosion inhibitor. They have found better corrosion inhibition performances for steel [31] and iron [32]. In this regard, exploiting OMW as a corrosion inhibitor on an industrial scale can minimize also the damage to the environment.…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, the computational demarche has been widely served to investigate the inhibition process of metallic corrosion at electronic and atomic scales by using DFT and Monte Carlo methods, respectively [31,32]. Besides, it is recognized that OMW is a mixture of several phenolic-based compounds [33].…”

Section: Introductionmentioning

confidence: 99%

“…In the present study, we have limited our electronic and atomic inspections on tyrosol L (Tyr) and hydrotyrosol L (HydroTyr) molecules, which are its major constituents [34]. In this context, we limited the use of the DFT/B3LYP method to investigate the reactivity of Tyr and HydroTyr molecule and their implicit interfacial interaction with the aluminum surface as well [31,35], while the explicit interactions were discussed using the Monte Carlo/simulated annealing method as reported widely in the literature [36].…”

Section: Introductionmentioning

confidence: 99%

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Corrosion Inhibition of 3003 Aluminum Alloy in Molar Hydrochloric Acid Solution by Olive Oil Mill Liquid By-Product

Chadili

Rguiti

Ibrahimi

et al. 2021

International Journal of Corrosion

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According to the literature, the works on the inhibition of aluminum alloy corrosion using naturally occurring compounds are limited. For this, the inhibiting effect of oil mill liquid by-product (OMW) on the corrosion of 3003 aluminum alloy (AA3003) in molar hydrochloric acid solution was evaluated using electrochemical techniques. In parallel, a computational approach based on DFT/B3LYP and Monte Carlo methods was used to understand the inhibition process under electronic and atomic scales, respectively. The experimental results reveal that OMW has a good inhibiting effect on the corrosion of AA3003 alloy in the tested solution and acts as a cathodic inhibitor. The inhibitory efficiency increases by increasing OMW concentration to attain 89% at 6.0 ppm. The effect of temperature shows that the inhibition efficiency of OMW decreases with temperature rising. Nevertheless, a good prevention capacity of 83% is obtained at 338 K. Such interesting achieved protection property was attributed to the adsorption of OMW constituents onto the alloy surface via a mixed physichemisorption process. This process is found to obey the Langmuir adsorption isotherm. Furthermore, the activation thermodynamic parameters of the corrosion process of AA3003 alloy were also determined and discussed. The computational outcomes outlined the ability of the OMW components to interact favorably with the metal surface, hence the formation of a protective layer, which justified the observed inhibition behaviors. Conferring to the present study, OMW can be used as a good green corrosion inhibitor for AA3003 alloy in the acidic medium.

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Phenolic and non-Phenolic Fractions of the Olive Oil Mill Wastewaters as Corrosion Inhibitor for Steel in HCl medium

Cited by 14 publications

References 47 publications

Effective Corrosion Inhibition of Carbon Steel in Hydrochloric Acid by Dopamine-Produced Carbon Dots

Effective Corrosion Inhibition of Carbon Steel in Hydrochloric Acid by Dopamine-Produced Carbon Dots

Aqueous extracts of olive roots, stems, and leaves as eco-friendly corrosion inhibitor for steel in 1 MHCl medium

Corrosion Inhibition of 3003 Aluminum Alloy in Molar Hydrochloric Acid Solution by Olive Oil Mill Liquid By-Product

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