Determination of methanolysis rate constants for low and high fatty acid oils using heterogeneous surface reaction kinetic models

Jamal, Yousuf; Rabie, Ahmed; Boulanger, Bryan

doi:10.1007/s11144-014-0780-5

Cited by 20 publications

(22 citation statements)

References 39 publications

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“…Most researchers used either the Eley-Rideal (ER) or Langmuir-Hinshelwood-Hougen-Watson (LHHW) methods. Jamal and colleagues used both method of ER and LHHW for transesterification of soybean oil on Amberlyst A26-OH basic ionexchange resin with and without free fatty acids [50]. Four steps of mechanism is proposed including methanol adsorption by ion exchange on basic resin surface, fatty acid adsorption by ion exchange on basic resin surface, hydrolysis of tri-, di-and monoglycerides from soybean oil and last one the transesterification of tri-, diand monoglycerides with basic resin surfacebound methoxide.…”

Section: Reaction Mechanismmentioning

confidence: 99%

“…Four steps of mechanism is proposed including methanol adsorption by ion exchange on basic resin surface, fatty acid adsorption by ion exchange on basic resin surface, hydrolysis of tri-, di-and monoglycerides from soybean oil and last one the transesterification of tri-, diand monoglycerides with basic resin surfacebound methoxide. ER model provide a better description for the interactions of the surface on the resin occur [50].…”

Section: Reaction Mechanismmentioning

confidence: 99%

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Development of Microwave-Assisted Sulfonated Glucose Catalyst for Biodiesel Production from Palm Fatty Acid Distillate (PFAD)

Saimon

Jusoh

Ngadi

et al. 2021

Bull. Chem. React. Eng. Catal.

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Microwave-heating method for catalyst preparation has been utilized recently due to its shorter operation time compared to the conventional method. Glucose, a renewable carbon source can be partially carbonized and sulfonated via microwave heating which could result in highly potential heterogeneous carbon-based acid catalyst. In this study, the impacts of the carbonization and sulfonation parameters during the catalyst preparation were investigated. Catalysts prepared were characterized using Fourier Transform Infrared Spectroscopy (FTIR), Field Emission Scanning Electron Microscopy (FESEM), X-Ray Diffraction (XRD), Brunauer-Emmet-Teller (BET), and Temperature Programmed Desorption–Ammonia (TPD-NH3). Analysis of the carbonization screening process discovered that the best incomplete carbonized glucose (ICG) prepared was at 20 minutes, 20 g of D(+)-glucose with medium microwave power level (400W) which exhibited the highest percentage yield (91.41%) of fatty acid methyl ester (FAME). The total surface area and acid site density obtained were 16.94 m2/g and 25.65 mmol/g, respectively. Regeneration test was further carried out and succeeded to achieve 6 cycles. The highest turnover frequency (TOF) of the sulfonated catalyst was methyl palmitate, 25.214´10−3 s−1 compared to other component of the methyl ester. Kinetic study was developed throughout the esterification process and activation energy from the forward and reverse reaction was 3.36 kJ/mol and 11.96 kJ/mol, respectively. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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Section: Reaction Mechanismmentioning

confidence: 99%

Section: Reaction Mechanismmentioning

confidence: 99%

Development of Microwave-Assisted Sulfonated Glucose Catalyst for Biodiesel Production from Palm Fatty Acid Distillate (PFAD)

Saimon

Jusoh

Ngadi

et al. 2021

Bull. Chem. React. Eng. Catal.

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“…The kinetics of the transesterification reaction of oils and fats by heterogeneous catalysis is not so well understood as it is for homogeneous catalysis [72]. Most research works on heterogeneous catalysis have been focused on the synthesis and application of catalysts, and only a few deal with kinetic modeling.…”

Section: Kineticsmentioning

confidence: 99%

“…Jamal et al [72] have used both ER and LHHW in the transesterification of soybean oil on an Amberlyst A26-OH basic ion-exchange resin and in the presence and absence of free fatty acids. They proposed a four-step mechanism: (1) methanol adsorption by ion exchange on basic resin surface; (2) fatty acid (oleic acid) adsorption by ion exchange on basic resin surface; (3) hydrolysis of tri-, di-and monoglycerides from soybean oil; and (4) transesterification of glycerides (tri-, di-and mono-) with basic resin surface-bound methoxide.…”

Section: Reaction Mechanismsmentioning

confidence: 99%

Kinetics of Transesterification Processes for Biodiesel Production

Trejo-Zárraga¹,

Hernández-Loyo²,

Chavarría-Hernández³

et al. 2018

Biofuels - State of Development

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Biodiesel is a renewable fuel mainly produced by transesterification of oils and fats that can be used as a transportation fuel, solvent and for energy generation with the potential to reduce the emissions of CO 2 , SO 2 , CO and HC, compared to fossil fuels. In this work, the kinetic behavior of triglycerides by different transesterification technologies is investigated through a critical review of the kinetic models reported in the study with the aim to establish a trend of the reaction mechanisms and the main variable effects and to further optimize the chemical process. The study of the transesterification reaction kinetics is performed for every type of transesterification, that is, homogeneous, heterogeneous, enzymatic and supercritical. The kinetic models are thus reviewed by describing the way they have evolved and how they can be used for process simulation and optimization. This chapter is divided in a study of the state of the art, an analysis and synthesis of research results, and an application for further optimization of the biodiesel production process.

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“…Ways of processing of low-grade and used cooking oils with high fatty acids content (up to 20 % wt. and more) have been described in [15][16][17][18]. It is noted that their processing occurs in a few stages: on one of which react preferably triacylglycerols, and on another -preferably free fatty acids.…”

Section: Analysis Of Literature and Statement Of Research Problemmentioning

confidence: 99%

Influence of vacuum on kinetic of low quality rapeseed oil amidation by aminoethylethanolamine

Kramarev¹,

Husanov

2016

EEJET

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Determination of methanolysis rate constants for low and high fatty acid oils using heterogeneous surface reaction kinetic models

Cited by 20 publications

References 39 publications

Development of Microwave-Assisted Sulfonated Glucose Catalyst for Biodiesel Production from Palm Fatty Acid Distillate (PFAD)

Development of Microwave-Assisted Sulfonated Glucose Catalyst for Biodiesel Production from Palm Fatty Acid Distillate (PFAD)

Kinetics of Transesterification Processes for Biodiesel Production

Influence of vacuum on kinetic of low quality rapeseed oil amidation by aminoethylethanolamine

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