Production of biodiesel from salvia mirzayanii oil via electrolysis using KOH/Clinoptilolite as catalyst

Helmi, Maryam; Hemmati, Alireza; Tahvildari, Kambiz

doi:10.1007/s40201-021-00766-y

Cited by 8 publications

(3 citation statements)

References 71 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Deng et al 46 announced that the peaks at 2θ = 31.0°, 35.52°, 42.80°, and 57.28° were assigned to the maghemite or magnetite, the peaks at 2θ = 52.5° and 63° were associated to the hematite, and the magnetic composite structure has peaks at 2θ = 19.2° and 34.36°. The new peak observed at 2θ value of 33.36° was related to the Na 2 O phase as well 47 . Calcination process of catalyst causes that the NaOH molecules converted to the Na 2 O, therefore, magnetic catalyst have high alkaline characterization.…”

Section: Resultsmentioning

confidence: 87%

See 1 more Smart Citation

Using NaOH@Graphene oxide-Fe3O4 as a magnetic heterogeneous catalyst for ultrasonic transesterification; experimental and modelling

Haghighi,

Hemmati,

Moghadamzadeh

et al. 2024

Sci Rep

Self Cite

View full text Add to dashboard Cite

Burning fossil fuels causes toxic gas emissions to increase, therefore, scientists are trying to find alternative green fuels. One of the important alternative fuels is biodiesel. However, using eco-friendly primary materials is a main factor. Sustainable catalysts should have high performance, good activity, easy separation from reaction cells, and regenerability. In this study, to solve the mentioned problem NaOH@Graphene oxide-Fe3O4 as a magnetic catalyst was used for the first time to generate biodiesel from waste cooking oil. The crystal structure, functional groups, surface area and morphology of catalyst were studied by XRD, FTIR, BET, and FESEM techniques. The response surface methodology based central composite design (RSM-CCD) was used for biodiesel production via ultrasonic technique. The maximum biodiesel yield was 95.88% in the following operation: 10.52:1 molar ratio of methanol to oil, a catalyst weight of 3.76 wt%, a voltage of 49.58 kHz, and a time of 33.29 min. The physiochemical characterization of biodiesel was based to ASTM standard. The magnetic catalyst was high standstill to free fatty acid due to the five cycle’s regeneration. The kinetic study results possess good agreement with first-order kinetics as well as the activation energy and Arrhenius constant are 49.2 kJ/min and 16.47 * 1010 min−1, respectively.

show abstract

Section: Resultsmentioning

confidence: 87%

“…However, increasing catalyst more than 3. 76 g has a negative effect on the transesterification reaction due to mass transfer resistance, All in all, when the final biodiesel yield decreases, the reaction mixture was viscose, and the mixture agents harder 47 . The results presented in Fig.…”

Section: Effects Of Operating Independent Factors On Transesterificat...mentioning

confidence: 99%

Using NaOH@Graphene oxide-Fe3O4 as a magnetic heterogeneous catalyst for ultrasonic transesterification; experimental and modelling

Haghighi,

Hemmati,

Moghadamzadeh

et al. 2024

Sci Rep

Self Cite

View full text Add to dashboard Cite

show abstract

“…Recently, electrolysis has attracted considerable attention as a promising approach for biodiesel production because of its eco-friendly nature and insensitivity to FFA and water contents in oils [20][21][22]. In electrolysis, electrochemical reactions lead to the formation of OH − ions on cathode, thus facilitating the transesterification of oil into biodiesel (Figure 1) [23].…”

Section: Introductionmentioning

confidence: 99%

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

View full text Add to dashboard Cite

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.

show abstract

Clinoptilolite and MCM-41 impregnated with chitosan as a green novel adsorbent for CO2 capture

Helmi,

Hemmati,

Ghaemi

2024

Case Studies in Chemical and Environmental Engineering

View full text Add to dashboard Cite

Production of biodiesel from salvia mirzayanii oil via electrolysis using KOH/Clinoptilolite as catalyst

Cited by 8 publications

References 71 publications

Using NaOH@Graphene oxide-Fe3O4 as a magnetic heterogeneous catalyst for ultrasonic transesterification; experimental and modelling

Using NaOH@Graphene oxide-Fe3O4 as a magnetic heterogeneous catalyst for ultrasonic transesterification; experimental and modelling

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

Clinoptilolite and MCM-41 impregnated with chitosan as a green novel adsorbent for CO2 capture

Contact Info

Product

Resources

About