Eco-friendly synthesis of biodiesel from WCO by using electrolysis technique with graphite electrodes

Asl, Mohammad Abdollahi; Tahvildari, Kambiz; Bigdeli, Tania

doi:10.1016/j.fuel.2020.117582

Cited by 35 publications

(21 citation statements)

References 50 publications

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“…However, a further increase in water content resulted in a decrease in biodiesel yield in agreement with that of a previous study [25]. Adequate water was gradually applied during the reaction, whereas excess water negatively affected the transesterification reaction, thus reducing reaction efficiency [24,25]. Figure 5 presents the combined effects of electrolysis voltage and methanol to oil molar ratio on biodiesel yield when other reaction factors were constant.…”

Section: Mutual Effects Of the Reaction Factorssupporting

confidence: 87%

“…This is because water is required for reactions on anode cathode [24]. In electrolysis, water molecules are continuously electrolyzed to produce OH − ions, which subsequently react with methanol to produce an active species (CH 3 O − ) that facilitates the transesterification reaction for biodiesel production (Figure 1) [24,25]. However, a further increase in water content resulted in a decrease in biodiesel yield in agreement with that of a previous study [25].…”

Section: Mutual Effects Of the Reaction Factorssupporting

confidence: 84%

“…Supelco 37 Component FAME Mix was used to determine fatty acid compositions and establish a standard curve (y = 159490x -15678; R 2 = 0:9998) for calculating the amount of biodiesel produced. Biodiesel yield was then calculated using the following equation [6,24]: 3 International Journal of Energy Research Fuel properties of the produced biodiesel, such as cloud point, oxidation stability, viscosity, density, cold filter plugging point, pour point, and cetane number, were estimated on the basis of its fatty acid composition using BiodieselAnalyzer software (online version: http://www .brteam.ir/analysis/).…”

Section: Il Reusabilitymentioning

confidence: 99%

“…At a given [Emim]Cl amount, biodiesel yield increased with increasing water content. This is because water is required for reactions on anode cathode [24]. In electrolysis, water molecules are continuously electrolyzed to produce OH − ions, which subsequently react with methanol to produce an active species (CH 3 O − ) that facilitates the transesterification reaction for biodiesel production (Figure 1) [24,25].…”

Section: Mutual Effects Of the Reaction Factorsmentioning

confidence: 99%

“…In electrolysis, electrochemical reactions lead to the formation of OH − ions on cathode, thus facilitating the transesterification of oil into biodiesel (Figure 1) [23]. To enhance reaction efficiency, various strategies have been devised for electrolysis, including the addition of a catalyst (e.g., H 2 SO 4 [20], KOH [23], and NaOH [24]) into the reaction mixture or the use of different electrode materials [24,25]. Another promising strategy for enhancing reaction efficiency is the use of additional electrolytes to increase the electrical conductivity of the reaction mixture [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

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Biodiesel Production through Electrolysis Using an Ionic Liquid, 1-Ethyl-3-Methylimidazolium Chloride as a Supporting Electrolyte

Aregawi

Nguyen

et al. 2023

International Journal of Energy Research

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Electrolysis is a promising approach for biodiesel production. However, low electrical conductivity of a reaction mixture results in a low reaction rate. Thus, this study developed a novel catalyst-free electrolysis process using an ionic liquid as a supporting electrolyte for biodiesel production. Various ionic liquids were assessed, and 1-ethyl-3-methylimidazolium chloride ([Emim]Cl) exhibited the highest electrical conductivity (4.59 mS/cm) and the best electrolytic performance for transesterification. Electrolysis in the presence of [Emim]Cl was subsequently optimized using response surface methodology to maximize biodiesel yield. A maximum biodiesel yield of 97.76% was obtained under the following optimal reaction conditions: electrolysis voltage, 19.42 V; [Emim]Cl amount, 4.43% ( w / w ); water content, 1.62% ( w / w ); methanol to oil molar ratio, 26.38 : 1; and reaction time, 1 h. Notably, [Emim]Cl could be efficiently reused for at least three cycles with a corresponding biodiesel yield of 94.81%. Moreover, the properties of the synthesized biodiesel complied with EN and ASTM standards. The findings of this study indicate that catalyst-free electrolysis using [Emim]Cl as a supporting electrolyte is an eco-friendly and efficient method for biodiesel production.

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Section: Mutual Effects Of the Reaction Factorssupporting

confidence: 87%

Section: Mutual Effects Of the Reaction Factorssupporting

confidence: 84%

Section: Il Reusabilitymentioning

confidence: 99%

Section: Mutual Effects Of the Reaction Factorsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Biodiesel Production through Electrolysis Using an Ionic Liquid, 1-Ethyl-3-Methylimidazolium Chloride as a Supporting Electrolyte

Aregawi

Nguyen

et al. 2023

International Journal of Energy Research

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Sustainable Synthesis and Characterizationof Corncob‐Derived Graphene Oxide

et al. 2023

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Recently, though graphene oxide (GO) has shown promising applications in many fields, there have not been many studies focusing on exploiting the source of synthetic precursors of GO. Herein, GO was synthesized from the cellulose of corncob by corncob alkalization, bleaching cellulose, pyrolysis, and improved Hummer's method. It was found that pyrolysis plays an important role in the graphitization of cellulose precursors with the catalyst Fe(NO3)3 to form Gi‐Fe(NO3)3. The GO material synthesized from Gi‐Fe(NO3)3 was characterized by advanced analytical methods. The X‐ray diffraction pattern of Gi‐Fe(NO3)3 shows the formation of a diffraction peak at the crystal plane (002), which is characteristic of the graphite material. The synthesized GO underwent a series of changes in material structure and morphology, which are confirmed via transmission electron microscopy images showing a plate‐like structure with folds represented by the dark line. This study demonstrates a sustainable approach that directly utilizes abundant biomass resources for the synthesis of GO material.

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Biodiesel production from Mastic oil via electrolytic transesterification: optimization using response surface methodology and engine test

Helmi,

Sobati,

Hemmati

2023

Environ Sci Pollut Res

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Eco-friendly synthesis of biodiesel from WCO by using electrolysis technique with graphite electrodes

Cited by 35 publications

References 50 publications

Biodiesel Production through Electrolysis Using an Ionic Liquid, 1-Ethyl-3-Methylimidazolium Chloride as a Supporting Electrolyte

Biodiesel Production through Electrolysis Using an Ionic Liquid, 1-Ethyl-3-Methylimidazolium Chloride as a Supporting Electrolyte

Sustainable Synthesis and Characterizationof Corncob‐Derived Graphene Oxide

Biodiesel production from Mastic oil via electrolytic transesterification: optimization using response surface methodology and engine test

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