Passivation of steel in ethanol–gasoline blends induced by diethylene triamine

Macák, Jan; Matějovský, Lukáš; Pleyer, Olga; Arnoult-Růžičková, Mariana; Jelínek, Luděk

doi:10.1016/j.electacta.2022.141263

Cited by 5 publications

(5 citation statements)

References 37 publications

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“…The dissolution of the water with gasoline was enhanced by the butanol functioning as a surfactant. The previous reports generally introduced a synthetic surfactant to dissolve the wet alcohol and the fossil fuels [26,27]. Employing synthetic surfactants increased the cost of production, and it was not environmentally friendly since they were derived from nonrenewable substances [28,29].…”

Section: Discussion Of the Compositions Of The Butanolgasoline-water ...mentioning

confidence: 99%

Identifying of the compositions of the blended fuels of the butanol, gasoline, and water stabilized at low temperatures

Sangian,

Lestari,

Pasau

et al. 2023

EEJET

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The work was purposed to identify the compositions the blended fuel of butanol, gasoline, and water forming the stable emulsions at low temperatures. The previous researches reported that the blending of butanol and gasoline generally employed the synthetic surfactants which were expensive and mixed at room temperatures. It is important to analyze the stability of the substances in the wide range of temperature for it alter significantly on the surface of the planet. The references survey revealed that the works of the compositions of the wet butanol and gasoline at low temperatures are yet published. The present work was successful to blend the butanol, gasoline, and water in stable emulsion without using the surfactant and stabilized in the less of room temperature. Compositions of butanol, gasoline (RONs 90), and water emulsified and stabilized at low temperatures without synthetic surfactants were successfully studied. It was found that aqueous butanol and gasoline formed a stable emulsion at low temperatures and discovered the phase was separated if temperature declined. The compositions of pure butanol, gasoline, and water recorded in stable emulsions using butanol 85.00 % ranged from 75.08–79.24 %, 6.77–11.67 %, and 13.25–13.98 %, respectively, blended at temperatures 0.00–29.70 °C. The usage of butanol 99.50 % caused the change of compositions recorded at 0.71–11.34 %, 88.61–99.29 %, and 0.00–0.06 % blended at 0.00–29.00 °C. It was discovered that the increase of butanol percentage of the fuel after the emulsion was stable tended to the emulsion kept one phase. The emulsion fuels found would be applied to the heat-modified engines operating in wide range temperatures which were below room temperature

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Section: Discussion Of the Compositions Of The Butanolgasoline-water ...mentioning

confidence: 99%

Identifying of the compositions of the blended fuels of the butanol, gasoline, and water stabilized at low temperatures

Sangian,

Lestari,

Pasau

et al. 2023

EEJET

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“…This concentration was chosen based on earlier publications. 25,32 The concentration dependence of the corrosion inhibition efficiency of DETA has already been published. 32 2.3.…”

Section: Steel Samples and Corrosion Inhibitormentioning

confidence: 99%

“…25,32 The concentration dependence of the corrosion inhibition efficiency of DETA has already been published. 32 2.3. Electrochemical Apparatus and Measurement Procedure.…”

Section: Steel Samples and Corrosion Inhibitormentioning

confidence: 99%

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Methods for Testing the Steel Corrosion Inhibition in Alcohol–Gasoline Blends Using Diethylenetriamine

et al. 2022

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Alcohol–gasoline blends (AGBs) are fuels with higher corrosion aggressiveness than conventional petroleum-based fuels containing only hydrocarbons. Thus, the further use of AGBs is associated with finding a way to reduce these corrosion effects. The reduction of material corrosion can be achieved using corrosion inhibitors. In this work, we investigated the inhibitory effects of diethylenetriamine (DETA) in contaminated alcohol–gasoline fuel containing 85 vol % of butanol (B85). E85 fuel containing 85 vol % of ethanol was used for comparison as an alternative fuel. These fuels were purposely contaminated with water and trace amounts of chloride and sulfate ions, as well as acetic and sulfuric acids. The testing was performed on mild steel as this kind of steel has been used as the most common construction material for fuel transportation and storage. Corrosion tests were performed using (i) electrochemical impedance spectroscopy in two- and three-electrode arrangements, (ii) polarization curve measurements, (iii) cyclic potentiodynamic polarization, and (iv) static immersion tests. The DETA inhibitor efficiency in the most aggressive fuel was found to be 99%. With the use of the DETA inhibitor, a reduction in the corrosion current density was achieved from the initial value of 1.6 to 1.0 × 10–2 μA·cm–2.

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“…To address this problem, the use of corrosion inhibitors in ethanol-gasoline systems has been widely investigated. Inhibitors composed of amines such as diethylenetriamine [14][15][16] or from plant leaves (Vitex negundo, Catharanthus roseu, Aegle marmelos, Elaeocarpus ganitrus [17], Aganonerion polymorphum [18] are effective.…”

Section: Introductionmentioning

confidence: 99%

A Study of the corrosion inhibition of aluminum in ethanol-gasoline blend by using Annona muricata leaves extract

Benitez,

Galvez,

Sesenes

et al. 2024

Preprint

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The effect of Annona muricata leaves extract as an inhibitor of green corrosion of aluminum was investigated 20% cane ethanol and 80% gasoline blend solution for 91 days of immersion. It was evaluated using gravimetric and electrochemical techniques such as electrochemical impedance spectroscopy (EIS), linear polarization resistance (LPR) and electrochemical noise (EN). The studies revealed that Annona muricata extract is an efficient corrosion inhibitor, reaching its highest efficiency at concentrations of 20 and 25 ppm. This decrease in the corrosion rate is because the inhibitor adsorbs to the aluminum surface by physisorption according to the Langmuir adsorption isotherm and demonstrated a more notable protective effect Fourier transform infrared spectroscopy (FTIR) and gas chromatography coupled with mass spectrometry (GC-MS) analyzes were performed, which showed the presence of phenolic compounds, lauric acid, palmitic acid, linoleic acid, vitamin E and other compounds with antioxidant properties. The morphology of the aluminum surface was examined by scanning electron microscopy (SEM), showing the existence of a protective layer of Annona muricata extract that reduces pitting corrosion susceptibility of aluminum.

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Passivation of steel in ethanol–gasoline blends induced by diethylene triamine

Cited by 5 publications

References 37 publications

Identifying of the compositions of the blended fuels of the butanol, gasoline, and water stabilized at low temperatures

Identifying of the compositions of the blended fuels of the butanol, gasoline, and water stabilized at low temperatures

Methods for Testing the Steel Corrosion Inhibition in Alcohol–Gasoline Blends Using Diethylenetriamine

A Study of the corrosion inhibition of aluminum in ethanol-gasoline blend by using Annona muricata leaves extract

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