A kinetic model for a single step biodiesel production from a high free fatty acid (FFA) biodiesel feedstock over a solid heteropolyacid catalyst

Gaurav, Aashish; Dumas, Stéphane; T.Q., Chau; Ng, Flora T. T.

doi:10.1016/j.gee.2019.03.004

Cited by 81 publications

(28 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…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

View full text Add to dashboard Cite

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

show abstract

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

View full text Add to dashboard Cite

show abstract

“…Recent literature reveals documented reports on the esterification of free fatty acids using solid catalyst (Hood et al, 2018;Michelle et al, 2016;Nuithitikul et al, 2017;Pereira et al, 2018;Veillette et al, 2017;Yunus et al, 2016) such as corn cob (Hussain & Kumar, 2018), tin, gelular exchange resin based catalyst, solid heteropolyacid catalyst (Gaurav et al, 2019), HSO3-functionalized halloysite nanotubes (Silva et al, 2018), acidic metal oxides with supported polyoxometalate catalysts (Avramidou et al, 2017) etc.…”

Section: Introductionmentioning

confidence: 99%

The Kinetics of the Esterification of Free Fatty Acids in Jatropha Oil using Glycerol based Solid Acid Catalyst

Rani

Neeharika

Vardhan

et al. 2020

EUROPEAN J SUSTAINAB DEV

View full text Add to dashboard Cite

The studied work presents the kinetics of the esterification of Free Fatty Acids (FFA) in jatropha oil with methanol (Alc) using glycerol based solid acid catalyst (SAC) at varying catalyst mass concentrations from 2.5 to 4.0 %, temperature 50-65 °C that is upto refluxing temperature and atmospheric pressure and Alc-FFA mole ratios ranging from 7.2:1 to 28.8:1 with respect to the FFA present in the oil matrix. The optimized esterification parameters were observed as 3.5% mass concentration of glycerol based SAC with 21.6:1, Alc-FFA mole ratio at temperature of 65 °C for a time period of 4 h which provided a conversion of about 97.03%. Based on the experimental results a second order kinetic model is proposed. The temperature influence on the rate of the reaction, Arrhenius constants and activation energies were evaluated. The reaction heat and energy of activation for the reaction were found to be 10.315 kcal/mol and 11.38 kcal/mol respectively.

show abstract

“…Biodiesel is known as a renewable, biodegradable and non-toxic energy source. In chemical terms, biodiesel is produced from lipid sources with alcohol through transesterification reaction in the presence of a base, acid, enzyme or solid catalyst [1][2][3][4]. The use of used cooking oil in the production of biodiesel has become an effective way that offers solutions to economic and environmental problems [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…The homogeneous catalysts are generally better to interact with reactant molecules and show attractive selectivity under mild condition. Nevertheless, it has consequence of harmful wastes due to the difficult product recovery and environmental pollution, lead to the use of heterogeneous catalyst as possible and desirable solution [4].…”

Section: Introductionmentioning

confidence: 99%

Catalytic Synthesis of Diethanolamide Surfactant from Used Cooking Oil

Utami

Wijaya

Syoufian

et al. 2020

EKSAKTA: J. Sci. Data Anal.

View full text Add to dashboard Cite

The synthesis of diethanolamide surfactant from used cooking oil was systematically studied using modified zeolite as catalyst. The activated zeolite was obtained by dispersing natural zeolite in sulfuric acid (H2SO4) solution. Potassium carbonate (K2CO3) was loaded into activated zeolite by wet impregnation method. The methyl ester obtained from transesterification reaction of used cooking oil was refluxed with diethanolamine (C4H11NO) solution over K2CO3/zeolite catalyst in the production of diethanolamide surfactant. The amidiation reaction over K2CO3/zeolite effectively produced 92% of diethanolamide surfactant with the highest selectivity of methyl oleate. Diethanolamide surfactant showed stable foam and emulsion with the reduction of surface tension as much as 3.3 dyne/cm.

show abstract

A kinetic model for a single step biodiesel production from a high free fatty acid (FFA) biodiesel feedstock over a solid heteropolyacid catalyst

Cited by 81 publications

References 40 publications

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

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

The Kinetics of the Esterification of Free Fatty Acids in Jatropha Oil using Glycerol based Solid Acid Catalyst

Catalytic Synthesis of Diethanolamide Surfactant from Used Cooking Oil

Contact Info

Product

Resources

About