Kinetic study of soybean oil methanolysis using cement kiln dust as a heterogeneous catalyst for biodiesel production

Al-Sakkari, Eslam G.; Sheltawy, S. T. El; Attia, N. K.; Mostafa, Salwa R.

doi:10.1016/j.apcatb.2017.01.008

Cited by 64 publications

(25 citation statements)

References 56 publications

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“…According to the reaction rate model following Eley-Rideal model/mechanism stated in Eq. (19) ( Al-Sakkari et al., 2017 ; Dossin et al., 2006 ; Kapil et al., 2011 ; Muciño et al., 2016 ; Xiao et al., 2010 ) fitted to experimental data ( Table 1 ), the reaction rate law model for the plasma-assisted transesterification over Hybrid Catalytic-Plasma reactor is resulted in Eq. (20) .…”

Section: Resultsmentioning

confidence: 99%

Reaction rate law model and reaction mechanism covering effect of plasma role on the transesterification of triglyceride and methanol to biodiesel over a continuous flow hybrid catalytic-plasma reactor

Purwanto

Buchori

Istadi

2020

Heliyon

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This study investigated predictions of reaction mechanisms and reaction rate law model covering effect of plasma role on the heterogeneous catalytic reaction of triglyceride and methanol to produce biodiesel (fatty acid methyl ester - FAME or fatty acid alkyl ester – FAAE) over a continuous flow hybrid catalytic-plasma reactor. This catalytic reaction was carried out in a dielectric-barrier discharge plasma reactor over 5 wt% K 2 O/CaO–ZnO catalyst under conditions of atmospheric pressure and the reactor temperature of 65 °C. During the hybrid catalytic-plasma reaction system, the voltage, the catalyst diameter, and the Weight Hourly Space Velocity (WHSV) were kept constant at 5 kV, 5 mm, and 1.186/min, respectively. It was found that transesterification reaction with the hybrid roles of catalytic and plasma achieved 77.2% biodiesel yield. Kinetic studies of this transesterification reaction over a continuous flow hybrid catalytic-plasma reactor suggested following Eley-Rideal mechanism model, where the methanol adsorbed on the catalyst surface reacted with triglycerides in bulk phase to produce an adsorbed methyl ester and glycerol in bulk phase. The possible reaction rate law model found is: -r TG = r ME = r s = (0.0078∗(0.0061∗C TG ∗C M 3 –3.0302 × 10 −6 ∗C ME 3 ∗C G ))/(0.1827∗C M + 0.0145∗C ME +1) 3 gmol/gcat.min. This reaction rate law model was useful to design reactor of the hybrid catalytic-plasma chemical reaction system for biodiesel production.

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Section: Resultsmentioning

confidence: 99%

Reaction rate law model and reaction mechanism covering effect of plasma role on the transesterification of triglyceride and methanol to biodiesel over a continuous flow hybrid catalytic-plasma reactor

Purwanto

Buchori

Istadi

2020

Heliyon

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“…It was noted that the transesterification rate enhanced when the catalyst loading was increased into the reaction mixture and maximum biodiesel yield was achieved at 6 wt% (Figure C). Moreover, it was observed that the additional increment in the catalyst concentration resulted in a decrease in the transesterification rate that could be assigned to the mixing problems originating from high catalyst loading . Therefore, a catalyst amount of 6% (w/w of oil) was used for transesterification of WCO.…”

Section: Resultsmentioning

confidence: 99%

A green route for biodiesel production from waste cooking oil over base heterogeneous catalyst

et al. 2019

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Summary The present work describes the synthesis of porous BaSnO3 by eco‐friendly sol‐gel method using albumin as a bio‐template agent, and its application as a solid base catalyst in biodiesel production from waste cooking oil. The physico‐chemical, textural, and morphological properties of the catalyst were evaluated by X‐ray diffraction (XRD), Brunauer‐Emmett‐Teller (BET), field emission scanning electron microscopy (FESEM), and temperature programmed desorption (TPD)–CO2 techniques. The synthesized catalyst showed considerable stability, efficient catalytic activity, and negligible metal leaching. The satisfactory performance of the catalyst could be ascribed to the presence of basic sites of different strength on the surface of the catalyst. The catalyst produced maximum biodiesel yield of 96% at optimum reaction conditions of 90°C reaction temperature, methanol to oil molar ratio of 10:1, catalyst dosage of 6 wt%, and reaction time of 2 hours. Moreover, the catalyst showed substantial reusability up to five reaction cycles without any considerable decrease in transesterification activity.

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“…2 First order kinetic model for triglyceride and methanol concentration was obtained based on equation 1. 23 (…”

Section: Fame Synthesis and Kinetic Analysismentioning

confidence: 99%

Residue-Based CaO Heterogeneous Catalysts from Crab and Mollusk Shells for FAME Production Via Transesterification

Cardoso

Cavalcanti

Silva

et al. 2020

J. Braz. Chem. Soc.

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The production of fatty acid methyl esther (FAME) via transesterification was studied, assessing the influence of CaO heterogeneous catalysts obtained from four different fishery residues: sururu, crab, clam and mussel. Characterization and properties of the residues were obtained via thermogravimetric analysis, X-ray diffraction, X-ray fluorescence, Fourier transform infrared (FTIR) spectra, nitrogen adsorption/desorption, chemical composition and scanning electron microscopy (SEM). Catalytic activities and reaction kinetics of FAME synthesis from the transesterification of soybean oil were performed. FAME yield was determined by 1 H nuclear magnetic resonance (NMR). A higher efficiency and reaction rate were observed for the catalysts obtained from the sururu residues with 93.7% FAME yield after 3.5 h of reaction at the first usage, reducing only to 91.0% after four consecutive cycles of reuse. The best activities were assigned to the presence of SrO, to smaller particle size, higher pore volumes and the higher Ca leaching, yielding Ca-diglyceroxide which is an important active phase for transesterification.

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Kinetic study of soybean oil methanolysis using cement kiln dust as a heterogeneous catalyst for biodiesel production

Cited by 64 publications

References 56 publications

Reaction rate law model and reaction mechanism covering effect of plasma role on the transesterification of triglyceride and methanol to biodiesel over a continuous flow hybrid catalytic-plasma reactor

Reaction rate law model and reaction mechanism covering effect of plasma role on the transesterification of triglyceride and methanol to biodiesel over a continuous flow hybrid catalytic-plasma reactor

A green route for biodiesel production from waste cooking oil over base heterogeneous catalyst

Residue-Based CaO Heterogeneous Catalysts from Crab and Mollusk Shells for FAME Production Via Transesterification

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