Kinetic Studies of Free Fatty Acid Esterification using Cation Exchange Resins as Catalyst

Yunus, Nursofia Mohd; Roslan, Nurul Asmawati; Chin, Sim Yee; Abidin, Sumaiya Zainal

doi:10.17485/ijst/2017/v10i7/111461

Cited by 7 publications

(4 citation statements)

References 7 publications

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“…During the regression analysis, the program iteratively minimized the objective function, which represents the sum of squares of the errors between the model predictions and actual experimental data. By continuously adjusting the parameter values, the program aimed to optimize the fit between the model and the experimental data, ultimately improving the accuracy and reliability of the kinetic model . After execution, the program provides an assessment of the parameter’s goodness of fit based on the R 2 value and the 95% confidence limit.…”

Section: Resultsmentioning

confidence: 99%

“…By continuously adjusting the parameter values, the program aimed to optimize the fit between the model and the experimental data, ultimately improving the accuracy and reliability of the kinetic model. 49 After execution, the program provides an assessment of the parameter's goodness of fit based on the R 2 value and the 95% confidence limit. The R 2 value serves as an indicator of the model's suitability, reflecting the proportion of the total variation in the data that can be explained by the model.…”

Section: Kinetic Modelingmentioning

confidence: 99%

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Kinetics of Reductive Alkylation of Aniline with Acetone Using a Ni/Organoclay Catalyst

Gajbhiye,

Rathod,

Kantam

2024

Ind. Eng. Chem. Res.

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The kinetic model for reductive alkylation of aniline with acetone using 30 wt % Ni/Organoclay was derived and validated at different temperatures. The catalyst was synthesized and characterized for structural and morphological properties, showcasing promising potential in organic synthesis due to the synergistic effects of nickel on organoclay. As per our knowledge, no one reported the reductive alkylation of aniline using Ni/ Organoclay. Additionally, very few articles are reported on the kinetic modeling of this reaction. To address this gap, we have investigated the kinetics of reductive alkylation of aniline with acetone using a Ni/ Organoclay catalyst. The study systematically investigates the influence of various reaction parameters, such as temperature, pressure, catalyst screening, concentration of the catalyst, mole ratio, agitation speed, and reactant concentrations, on the reaction kinetics. The kinetic analysis involves the determination of crucial parameters, such as reaction rate, activation energies, and heat of adsorption. A number of rate equations were derived to fit the batch reactor data, and rate models based on Langmuir−Hinshelwood competitive associative adsorption of the surface reaction between the Schiff base and hydrogen as the rate-limiting catalytic steps were found to represent the experimental data.

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Section: Resultsmentioning

confidence: 99%

Section: Kinetic Modelingmentioning

confidence: 99%

Kinetics of Reductive Alkylation of Aniline with Acetone Using a Ni/Organoclay Catalyst

Gajbhiye,

Rathod,

Kantam

2024

Ind. Eng. Chem. Res.

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“…The kinetics of biodiesel production in the presence of heterogeneous catalysts are commonly predicted by assuming zero‐, first‐, and second‐order models and nonlinear models 1,2,10‐14 . To investigate the kinetics of catalyzed biodiesel production, Eley‐Rideal model and the Langmuir‐Hinshelwood model were developed considering the adsorption and the desorption of reactants and products on the surface and active sites of the heterogeneous catalysts 15,16 .…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, between the various parameters in the reaction, the influence of the type of catalyst and the source of fatty acid is obvious on the kinetics of the process reaction 10,13,18,19 . For instance, the best fit of experimental data was reported with the Eley‐Rideal model for special cation exchange resins as a transesterification catalyst whereas the Langmuir‐Hinshelwood‐Hougen‐Watson was suitable for other resin types 13 …”

Section: Introductionmentioning

confidence: 99%

Biodiesel production in the presence of heterogeneous catalyst of alumina: Study of kinetics and thermodynamics

Zanjani

Pirzaman

Yazdanian

2020

Int J of Chemical Kinetics

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In the current research, biodiesel production was investigated in the presence of solid catalysts of K 2 CO 3 /Al 2 O 3 by transesterification of rapeseed oil. The specifications of produced fatty acid methyl esters like viscosity and flash point were studied, and it was noted that they complied with the requirements of ASTM D6751. In addition, the kinetic and thermodynamic parameters were explored considering the temperature changes between 318.15 and 348.15 K. Mass transfer resistance (external diffusion or internal diffusion) over the catalyst was neglected with regard to theWeisz-Prater criterion and Mears criterion. The kinetic models containing Eley-Rideal, Langmuir-Hinshelwood, pseudo-first-order, pseudo-second-order, and -order models were investigated. Corrected Akaike information criterion was utilized to find the best model fitted with the experimental data. The greatest illustration for the K 2 CO 3 /Al 2 O 3 -catalyzed reaction was the nonlinear model with an order of = 1.287 and the activation energy of 12.12 kJ/mol. Using transition state theory (Eyring-Polanyi equation), the activation Gibbs free energy, activation enthalpy, and activation entropy were calculated at different temperatures. The equilibrium thermodynamic properties depicted that this process is endothermic and spontaneous toward biodiesel production and tends to be irreversible. K E Y W O R D Salumina, heterogeneous catalyst, kinetics, thermodynamic, transesterification 472

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Ketonic decarboxylation and esterification of propionic acid over beta zeolites

Mitran

Chen

Dolge

et al. 2021

Microporous and Mesoporous Materials

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Kinetic Studies of Free Fatty Acid Esterification using Cation Exchange Resins as Catalyst

Cited by 7 publications

References 7 publications

Kinetics of Reductive Alkylation of Aniline with Acetone Using a Ni/Organoclay Catalyst

Kinetics of Reductive Alkylation of Aniline with Acetone Using a Ni/Organoclay Catalyst

Biodiesel production in the presence of heterogeneous catalyst of alumina: Study of kinetics and thermodynamics

Ketonic decarboxylation and esterification of propionic acid over beta zeolites

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