TY  - CONF
AU  - Kostić, Milan
AU  - Đorđević, Biljana
AU  - Pavlović, Stefan
AU  - Miladinović, Marija R.
AU  - Stamenković, Olivera
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7352
AB  - The investigation of reaction kinetics is crucial for practical implications in process equipment design and scaling up. In this study, a kinetic analysis of the methanolysis of a blend of radish and castor oil catalyzed by calcium oxide was carried out. The objectives were to propose a comprehensive model for describing the kinetics of this methanolysis reaction and determine its activation energy. The methanolysis was conducted in a batch reactor under atmospheric pressure with the following reaction conditions: a radish-to-castor oil blend mass ratio of 1:1, a methanol-to-oil molar ratio of 12:1, a catalyst amount of 5% of the oil blend weight, and reaction temperatures of 
30 C, 45 C, and 60 C. The model involving the changing reaction mechanism and the triacylglycerol (TAG) mass transfer limitation was first simplified to a pseudo-first order model regarding TAGs and fatty acid methyl esters, which was then used to calculate the apparent reaction rate constant. A good agreement between the calculated and experimental values of the TAG conversion degree was proved by a low mean relative percentage deviation of ±6.1% (based on 66 data), thus validating the applied simple kinetic model. A positive effect of the reaction temperature on the apparent reaction rate constant was observed. Using the Arrhenius equation, the activation energy of methanolysis was determined to be 46.12 kJ/mol. The obtained value of activation energy is much lower than values of activation energy determined for the calcium oxide-catalyzed methanolysis of single oil feedstocks, such as soybean, canola, Jatropha, and waste frying oils. The lower activation energy suggests the potential for enhanced efficiency and feasibility of utilizing this blend as a feedstock for biodiesel production compared to the individual oily feedstocks previously studied.
PB  - Leskovac : Faculty of Technology
C3  - Book of abstracts - 15th international symposium „Novel technologies and sustainable development“,  October, 20-21, 2023, Leskovac, Serbia
T1  - Kinetic modeling of the biodiesel production from sunflower oil over corn cob ash
SP  - 129
EP  - 130
UR  - https://hdl.handle.net/21.15107/rcub_cer_7352
ER  - 

@conference{
author = "Kostić, Milan and Đorđević, Biljana and Pavlović, Stefan and Miladinović, Marija R. and Stamenković, Olivera",
year = "2023",
abstract = "The investigation of reaction kinetics is crucial for practical implications in process equipment design and scaling up. In this study, a kinetic analysis of the methanolysis of a blend of radish and castor oil catalyzed by calcium oxide was carried out. The objectives were to propose a comprehensive model for describing the kinetics of this methanolysis reaction and determine its activation energy. The methanolysis was conducted in a batch reactor under atmospheric pressure with the following reaction conditions: a radish-to-castor oil blend mass ratio of 1:1, a methanol-to-oil molar ratio of 12:1, a catalyst amount of 5% of the oil blend weight, and reaction temperatures of 
30 C, 45 C, and 60 C. The model involving the changing reaction mechanism and the triacylglycerol (TAG) mass transfer limitation was first simplified to a pseudo-first order model regarding TAGs and fatty acid methyl esters, which was then used to calculate the apparent reaction rate constant. A good agreement between the calculated and experimental values of the TAG conversion degree was proved by a low mean relative percentage deviation of ±6.1% (based on 66 data), thus validating the applied simple kinetic model. A positive effect of the reaction temperature on the apparent reaction rate constant was observed. Using the Arrhenius equation, the activation energy of methanolysis was determined to be 46.12 kJ/mol. The obtained value of activation energy is much lower than values of activation energy determined for the calcium oxide-catalyzed methanolysis of single oil feedstocks, such as soybean, canola, Jatropha, and waste frying oils. The lower activation energy suggests the potential for enhanced efficiency and feasibility of utilizing this blend as a feedstock for biodiesel production compared to the individual oily feedstocks previously studied.",
publisher = "Leskovac : Faculty of Technology",
journal = "Book of abstracts - 15th international symposium „Novel technologies and sustainable development“,  October, 20-21, 2023, Leskovac, Serbia",
title = "Kinetic modeling of the biodiesel production from sunflower oil over corn cob ash",
pages = "129-130",
url = "https://hdl.handle.net/21.15107/rcub_cer_7352"
}

Kostić, M., Đorđević, B., Pavlović, S., Miladinović, M. R.,& Stamenković, O.. (2023). Kinetic modeling of the biodiesel production from sunflower oil over corn cob ash. in Book of abstracts - 15th international symposium „Novel technologies and sustainable development“,  October, 20-21, 2023, Leskovac, Serbia
Leskovac : Faculty of Technology., 129-130.
https://hdl.handle.net/21.15107/rcub_cer_7352

Kostić M, Đorđević B, Pavlović S, Miladinović MR, Stamenković O. Kinetic modeling of the biodiesel production from sunflower oil over corn cob ash. in Book of abstracts - 15th international symposium „Novel technologies and sustainable development“,  October, 20-21, 2023, Leskovac, Serbia. 2023;:129-130.
https://hdl.handle.net/21.15107/rcub_cer_7352 .

Kostić, Milan, Đorđević, Biljana, Pavlović, Stefan, Miladinović, Marija R., Stamenković, Olivera, "Kinetic modeling of the biodiesel production from sunflower oil over corn cob ash" in Book of abstracts - 15th international symposium „Novel technologies and sustainable development“,  October, 20-21, 2023, Leskovac, Serbia (2023):129-130,
https://hdl.handle.net/21.15107/rcub_cer_7352 .

TY  - JOUR
AU  - Miladinović, Marija R.
AU  - Zdujić, Miodrag
AU  - Veljović, Đorđe
AU  - Krstić, Jugoslav
AU  - Banković-Ilić, Ivana B.
AU  - Veljković, Vlada B.
AU  - Stamenković, Olivera
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3217
AB  - The catalytic activity of the walnut shell ash was investigated in the biodiesel production by the sunflower oil methanolysis. The catalyst was characterized by the TG-DTA, XRD, Hg porosimetry, N2 physisorption, SEM, and Hammett method. In addition, the effects of the catalyst loading and the methanol-to-oil molar ratio on the methyl esters synthesis were tested at the reaction temperature of 60 °C. The walnut shell ash provided a very fast reaction and a high FAME content (over 98%). As the reaction occurred in the absence of triacylglycerols mass transfer limitation, the pseudo-first-order model was employed for describing the kinetics of the reaction. The catalyst was successfully reused four times after the regeneration of the catalytic activity by recalcination at 800 °C.
PB  - Elsevier
T2  - Renewable Energy
T1  - Valorization of walnut shell ash as a catalyst for biodiesel production
VL  - 147
SP  - 1033
EP  - 1043
DO  - 10.1016/j.renene.2019.09.056
ER  - 

@article{
author = "Miladinović, Marija R. and Zdujić, Miodrag and Veljović, Đorđe and Krstić, Jugoslav and Banković-Ilić, Ivana B. and Veljković, Vlada B. and Stamenković, Olivera",
year = "2020",
abstract = "The catalytic activity of the walnut shell ash was investigated in the biodiesel production by the sunflower oil methanolysis. The catalyst was characterized by the TG-DTA, XRD, Hg porosimetry, N2 physisorption, SEM, and Hammett method. In addition, the effects of the catalyst loading and the methanol-to-oil molar ratio on the methyl esters synthesis were tested at the reaction temperature of 60 °C. The walnut shell ash provided a very fast reaction and a high FAME content (over 98%). As the reaction occurred in the absence of triacylglycerols mass transfer limitation, the pseudo-first-order model was employed for describing the kinetics of the reaction. The catalyst was successfully reused four times after the regeneration of the catalytic activity by recalcination at 800 °C.",
publisher = "Elsevier",
journal = "Renewable Energy",
title = "Valorization of walnut shell ash as a catalyst for biodiesel production",
volume = "147",
pages = "1033-1043",
doi = "10.1016/j.renene.2019.09.056"
}

Miladinović, M. R., Zdujić, M., Veljović, Đ., Krstić, J., Banković-Ilić, I. B., Veljković, V. B.,& Stamenković, O.. (2020). Valorization of walnut shell ash as a catalyst for biodiesel production. in Renewable Energy
Elsevier., 147, 1033-1043.
https://doi.org/10.1016/j.renene.2019.09.056

Miladinović MR, Zdujić M, Veljović Đ, Krstić J, Banković-Ilić IB, Veljković VB, Stamenković O. Valorization of walnut shell ash as a catalyst for biodiesel production. in Renewable Energy. 2020;147:1033-1043.
doi:10.1016/j.renene.2019.09.056 .

Miladinović, Marija R., Zdujić, Miodrag, Veljović, Đorđe, Krstić, Jugoslav, Banković-Ilić, Ivana B., Veljković, Vlada B., Stamenković, Olivera, "Valorization of walnut shell ash as a catalyst for biodiesel production" in Renewable Energy, 147 (2020):1033-1043,
https://doi.org/10.1016/j.renene.2019.09.056 . .

TY  - JOUR
AU  - Miladinović, Marija R.
AU  - Zdujić, Miodrag
AU  - Veljović, Đorđe
AU  - Krstić, Jugoslav
AU  - Banković-Ilić, Ivana B.
AU  - Veljković, Vlada B.
AU  - Stamenković, Olivera
PY  - 2020
UR  - http://dais.sanu.ac.rs/123456789/6903
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3319
AB  - The catalytic activity of the walnut shell ash was investigated in the biodiesel production by the sunflower oil methanolysis. The catalyst was characterized by the TG-DTA, XRD, Hg porosimetry, N2 physisorption, SEM, and Hammett method. In addition, the effects of the catalyst loading and the methanol-to-oil molar ratio on the methyl esters synthesis were tested at the reaction temperature of 60 °C. The walnut shell ash provided a very fast reaction and a high FAME content (over 98%). As the reaction occurred in the absence of triacylglycerols mass transfer limitation, the pseudo-first-order model was employed for describing the kinetics of the reaction. The catalyst was successfully reused four times after the regeneration of the catalytic activity by recalcination at 800 °C.
PB  - Elsevier
T2  - Renewable Energy
T1  - Valorization of walnut shell ash as a catalyst for biodiesel production
VL  - 147
SP  - 1033
EP  - 1043
DO  - 10.1016/j.renene.2019.09.056
ER  - 

@article{
author = "Miladinović, Marija R. and Zdujić, Miodrag and Veljović, Đorđe and Krstić, Jugoslav and Banković-Ilić, Ivana B. and Veljković, Vlada B. and Stamenković, Olivera",
year = "2020",
abstract = "The catalytic activity of the walnut shell ash was investigated in the biodiesel production by the sunflower oil methanolysis. The catalyst was characterized by the TG-DTA, XRD, Hg porosimetry, N2 physisorption, SEM, and Hammett method. In addition, the effects of the catalyst loading and the methanol-to-oil molar ratio on the methyl esters synthesis were tested at the reaction temperature of 60 °C. The walnut shell ash provided a very fast reaction and a high FAME content (over 98%). As the reaction occurred in the absence of triacylglycerols mass transfer limitation, the pseudo-first-order model was employed for describing the kinetics of the reaction. The catalyst was successfully reused four times after the regeneration of the catalytic activity by recalcination at 800 °C.",
publisher = "Elsevier",
journal = "Renewable Energy",
title = "Valorization of walnut shell ash as a catalyst for biodiesel production",
volume = "147",
pages = "1033-1043",
doi = "10.1016/j.renene.2019.09.056"
}

Miladinović, M. R., Zdujić, M., Veljović, Đ., Krstić, J., Banković-Ilić, I. B., Veljković, V. B.,& Stamenković, O.. (2020). Valorization of walnut shell ash as a catalyst for biodiesel production. in Renewable Energy
Elsevier., 147, 1033-1043.
https://doi.org/10.1016/j.renene.2019.09.056

Miladinović MR, Zdujić M, Veljović Đ, Krstić J, Banković-Ilić IB, Veljković VB, Stamenković O. Valorization of walnut shell ash as a catalyst for biodiesel production. in Renewable Energy. 2020;147:1033-1043.
doi:10.1016/j.renene.2019.09.056 .

Miladinović, Marija R., Zdujić, Miodrag, Veljović, Đorđe, Krstić, Jugoslav, Banković-Ilić, Ivana B., Veljković, Vlada B., Stamenković, Olivera, "Valorization of walnut shell ash as a catalyst for biodiesel production" in Renewable Energy, 147 (2020):1033-1043,
https://doi.org/10.1016/j.renene.2019.09.056 . .

TY  - JOUR
AU  - Marinković, Dalibor
AU  - Miladinović, Marija R.
AU  - Avramović, Jelena M.
AU  - Krstić, Ivan
AU  - Stanković, Miroslav
AU  - Stamenković, Olivera
AU  - Jovanović, Dušan M.
AU  - Veljković, Vlada B.
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2301
AB  - Kinetic modeling and optimization of sunflower oil methanolysis catalyzed by spherically-shaped CaO/gamma-Al2O3 particles were conducted in batch stirred and packed-bed tubular reactors at 60 degrees C. The proposed three-parameter kinetic model describing the overall reaction with a variable mechanism was successfully applied to both batch and continuous reactions. The process optimization was done using the response surface methodology combined with a central composite design. The obtained optimal catalyst concentration, methanol-to-oil molar ratio and reaction time for the batch reaction were 0.55% (CaO to the oil), 9:1 and 5.22 h, respectively. In the continuous process, the catalyst was highly active stable and slightly leachable during 30 h. The deactivation of the catalyst was due to massive deposition of the organic molecules from the reaction mixture, which sheltered the catalytically active sites on the catalyst surface.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Energy Conversion and Management
T1  - Kinetic modeling and optimization of sunflower oil methanolysis catalyzed by spherically-shaped CaO/gamma-Al2O3 catalyst
VL  - 163
SP  - 122
EP  - 133
DO  - 10.1016/j.enconman.2018.02.048
ER  - 

@article{
author = "Marinković, Dalibor and Miladinović, Marija R. and Avramović, Jelena M. and Krstić, Ivan and Stanković, Miroslav and Stamenković, Olivera and Jovanović, Dušan M. and Veljković, Vlada B.",
year = "2018",
abstract = "Kinetic modeling and optimization of sunflower oil methanolysis catalyzed by spherically-shaped CaO/gamma-Al2O3 particles were conducted in batch stirred and packed-bed tubular reactors at 60 degrees C. The proposed three-parameter kinetic model describing the overall reaction with a variable mechanism was successfully applied to both batch and continuous reactions. The process optimization was done using the response surface methodology combined with a central composite design. The obtained optimal catalyst concentration, methanol-to-oil molar ratio and reaction time for the batch reaction were 0.55% (CaO to the oil), 9:1 and 5.22 h, respectively. In the continuous process, the catalyst was highly active stable and slightly leachable during 30 h. The deactivation of the catalyst was due to massive deposition of the organic molecules from the reaction mixture, which sheltered the catalytically active sites on the catalyst surface.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Energy Conversion and Management",
title = "Kinetic modeling and optimization of sunflower oil methanolysis catalyzed by spherically-shaped CaO/gamma-Al2O3 catalyst",
volume = "163",
pages = "122-133",
doi = "10.1016/j.enconman.2018.02.048"
}

Marinković, D., Miladinović, M. R., Avramović, J. M., Krstić, I., Stanković, M., Stamenković, O., Jovanović, D. M.,& Veljković, V. B.. (2018). Kinetic modeling and optimization of sunflower oil methanolysis catalyzed by spherically-shaped CaO/gamma-Al2O3 catalyst. in Energy Conversion and Management
Oxford : Pergamon-Elsevier Science Ltd., 163, 122-133.
https://doi.org/10.1016/j.enconman.2018.02.048

Marinković D, Miladinović MR, Avramović JM, Krstić I, Stanković M, Stamenković O, Jovanović DM, Veljković VB. Kinetic modeling and optimization of sunflower oil methanolysis catalyzed by spherically-shaped CaO/gamma-Al2O3 catalyst. in Energy Conversion and Management. 2018;163:122-133.
doi:10.1016/j.enconman.2018.02.048 .

Marinković, Dalibor, Miladinović, Marija R., Avramović, Jelena M., Krstić, Ivan, Stanković, Miroslav, Stamenković, Olivera, Jovanović, Dušan M., Veljković, Vlada B., "Kinetic modeling and optimization of sunflower oil methanolysis catalyzed by spherically-shaped CaO/gamma-Al2O3 catalyst" in Energy Conversion and Management, 163 (2018):122-133,
https://doi.org/10.1016/j.enconman.2018.02.048 . .

TY  - DATA
AU  - Marinković, Dalibor
AU  - Miladinović, Marija R.
AU  - Avramović, Jelena M.
AU  - Krstić, Ivan
AU  - Stanković, Miroslav
AU  - Stamenković, Olivera
AU  - Jovanović, Dušan M.
AU  - Veljković, Vlada B.
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4490
AB  - Supplementary material for: Marinković, D., Miladinovic, M. R., Avramović, J. M., Krstic, I. B., Stanković, M., Stamenković, O., Jovanović, D. M.,& Veljković, V. B. (2018). Kinetic modeling and optimization of sunflower oil methanolysis catalyzed by spherically-shaped CaO/gamma-Al2O3 catalyst. Energy Conversion and Management, 163, 122-133. https://doi.org/10.1016/j.enconman.2018.02.048
PB  - Elsevier
T2  - Energy Conversion and Management
T1  - Supplementary material for: "Kinetic modeling and optimization of sunflower oil methanolysis catalyzed by spherically-shaped CaO/gamma-Al2O3 catalyst"
UR  - https://hdl.handle.net/21.15107/rcub_cer_4490
ER  - 

@misc{
author = "Marinković, Dalibor and Miladinović, Marija R. and Avramović, Jelena M. and Krstić, Ivan and Stanković, Miroslav and Stamenković, Olivera and Jovanović, Dušan M. and Veljković, Vlada B.",
year = "2018",
abstract = "Supplementary material for: Marinković, D., Miladinovic, M. R., Avramović, J. M., Krstic, I. B., Stanković, M., Stamenković, O., Jovanović, D. M.,& Veljković, V. B. (2018). Kinetic modeling and optimization of sunflower oil methanolysis catalyzed by spherically-shaped CaO/gamma-Al2O3 catalyst. Energy Conversion and Management, 163, 122-133. https://doi.org/10.1016/j.enconman.2018.02.048",
publisher = "Elsevier",
journal = "Energy Conversion and Management",
title = "Supplementary material for: "Kinetic modeling and optimization of sunflower oil methanolysis catalyzed by spherically-shaped CaO/gamma-Al2O3 catalyst"",
url = "https://hdl.handle.net/21.15107/rcub_cer_4490"
}

Marinković, D., Miladinović, M. R., Avramović, J. M., Krstić, I., Stanković, M., Stamenković, O., Jovanović, D. M.,& Veljković, V. B.. (2018). Supplementary material for: "Kinetic modeling and optimization of sunflower oil methanolysis catalyzed by spherically-shaped CaO/gamma-Al2O3 catalyst". in Energy Conversion and Management
Elsevier..
https://hdl.handle.net/21.15107/rcub_cer_4490

Marinković D, Miladinović MR, Avramović JM, Krstić I, Stanković M, Stamenković O, Jovanović DM, Veljković VB. Supplementary material for: "Kinetic modeling and optimization of sunflower oil methanolysis catalyzed by spherically-shaped CaO/gamma-Al2O3 catalyst". in Energy Conversion and Management. 2018;.
https://hdl.handle.net/21.15107/rcub_cer_4490 .

Marinković, Dalibor, Miladinović, Marija R., Avramović, Jelena M., Krstić, Ivan, Stanković, Miroslav, Stamenković, Olivera, Jovanović, Dušan M., Veljković, Vlada B., "Supplementary material for: "Kinetic modeling and optimization of sunflower oil methanolysis catalyzed by spherically-shaped CaO/gamma-Al2O3 catalyst"" in Energy Conversion and Management (2018),
https://hdl.handle.net/21.15107/rcub_cer_4490 .

TY  - JOUR
AU  - Miladinović, Marija R.
AU  - Stamenković, Olivera
AU  - Banković, Predrag
AU  - Milutinović Nikolić, Aleksandra
AU  - Jovanović, Dušan M.
AU  - Veljković, Vlada B.
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1949
AB  - The effect of the residence time (i.e. liquid flow rate through the reactor), methanol-to-oil molar ratio and reaction temperature on the fatty acid methyl esters (FAMEs) content at the output of a continuous packed bed tubular reactor was modeled by the response surface methodology (RSM) combined with the 3(3) full factorial design (FFD) with replication or the Box-Behnken design (BBD) with five center points. The methanolysis of sunflower oil was carried out at the residence time of 1.0, 1.5 and 2.0 h, the methanol-to-oil molar ratios of 6:1, 12:1 and 18:1 and the reaction temperature of 40, 50 and 60 degrees C under the atmospheric pressure. Based on the used experimental designs, the model equations containing only linear and two-factor interaction terms were developed for predicting the FAME content, which were validated through the use of the unseen data. Applying the analysis of variance (ANOVA), all three factors were shown to have a significant influence on the FAME content. Acceptable statistical predictability and accuracy resulted from both designs since the values of the coefficient of determination were close to unity while the values of the mean relative percentage deviation were relatively low ( LT +/- 10%). In addition, both designs predicted the maximum FAME content of above 99%, which agreed closely with the actual FAME content (98.8%). The same optimal reaction temperature (60 degrees C) and residence time (2.0 h) were determined by both designs while the BBD model suggested a slightly lower methanol-to oil molar ratio (12.2:1) than the 3(3) FFD model (12.8:1). Since the BBD realization involved three times smaller number of experimental runs, thus requiring lower costs, less labor and shorter time than the 33 FFD, it could be recommended for the optimization of biodiesel production processes.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Energy Conversion and Management
T1  - Modeling and optimization of sunflower oil methanolysis over quicklime bits in a packed bed tubular reactor using the response surface methodology
VL  - 130
SP  - 25
EP  - 33
DO  - 10.1016/j.enconman.2016.10.020
ER  - 

@article{
author = "Miladinović, Marija R. and Stamenković, Olivera and Banković, Predrag and Milutinović Nikolić, Aleksandra and Jovanović, Dušan M. and Veljković, Vlada B.",
year = "2016",
abstract = "The effect of the residence time (i.e. liquid flow rate through the reactor), methanol-to-oil molar ratio and reaction temperature on the fatty acid methyl esters (FAMEs) content at the output of a continuous packed bed tubular reactor was modeled by the response surface methodology (RSM) combined with the 3(3) full factorial design (FFD) with replication or the Box-Behnken design (BBD) with five center points. The methanolysis of sunflower oil was carried out at the residence time of 1.0, 1.5 and 2.0 h, the methanol-to-oil molar ratios of 6:1, 12:1 and 18:1 and the reaction temperature of 40, 50 and 60 degrees C under the atmospheric pressure. Based on the used experimental designs, the model equations containing only linear and two-factor interaction terms were developed for predicting the FAME content, which were validated through the use of the unseen data. Applying the analysis of variance (ANOVA), all three factors were shown to have a significant influence on the FAME content. Acceptable statistical predictability and accuracy resulted from both designs since the values of the coefficient of determination were close to unity while the values of the mean relative percentage deviation were relatively low ( LT +/- 10%). In addition, both designs predicted the maximum FAME content of above 99%, which agreed closely with the actual FAME content (98.8%). The same optimal reaction temperature (60 degrees C) and residence time (2.0 h) were determined by both designs while the BBD model suggested a slightly lower methanol-to oil molar ratio (12.2:1) than the 3(3) FFD model (12.8:1). Since the BBD realization involved three times smaller number of experimental runs, thus requiring lower costs, less labor and shorter time than the 33 FFD, it could be recommended for the optimization of biodiesel production processes.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Energy Conversion and Management",
title = "Modeling and optimization of sunflower oil methanolysis over quicklime bits in a packed bed tubular reactor using the response surface methodology",
volume = "130",
pages = "25-33",
doi = "10.1016/j.enconman.2016.10.020"
}

Miladinović, M. R., Stamenković, O., Banković, P., Milutinović Nikolić, A., Jovanović, D. M.,& Veljković, V. B.. (2016). Modeling and optimization of sunflower oil methanolysis over quicklime bits in a packed bed tubular reactor using the response surface methodology. in Energy Conversion and Management
Oxford : Pergamon-Elsevier Science Ltd., 130, 25-33.
https://doi.org/10.1016/j.enconman.2016.10.020

Miladinović MR, Stamenković O, Banković P, Milutinović Nikolić A, Jovanović DM, Veljković VB. Modeling and optimization of sunflower oil methanolysis over quicklime bits in a packed bed tubular reactor using the response surface methodology. in Energy Conversion and Management. 2016;130:25-33.
doi:10.1016/j.enconman.2016.10.020 .

Miladinović, Marija R., Stamenković, Olivera, Banković, Predrag, Milutinović Nikolić, Aleksandra, Jovanović, Dušan M., Veljković, Vlada B., "Modeling and optimization of sunflower oil methanolysis over quicklime bits in a packed bed tubular reactor using the response surface methodology" in Energy Conversion and Management, 130 (2016):25-33,
https://doi.org/10.1016/j.enconman.2016.10.020 . .

TY  - JOUR
AU  - Marinković, Dalibor
AU  - Stanković, Miroslav
AU  - Velickovic, Ana V
AU  - Avramović, Jelena M.
AU  - Miladinović, Marija R.
AU  - Stamenković, Olivera
AU  - Veljković, Vlada B.
AU  - Jovanović, Dušan M.
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1956
AB  - The present paper is an overview of the recent progress in the development of various CaO-based catalysts suitable for biodiesel production. The mechanism, kinetics and optimization of transesterification reaction over these catalysts are first considered. Then, the practical application of CaO-based catalysts is discussed with a special stress on leaching and reusability of these catalysts. Also, various continuous reactor systems currently in use for biodiesel production are appraised. In addition to it, purification of crude biodiesel and the ecological aspects of using CaO-based catalysts are considered. Finally, the potentials of CaO-based catalysts for heterogeneous catalysis for biodiesel production are emphasized to assess the future perspectives of their use. This review might help in selecting suitable CaO-based catalysts and the optimum reaction conditions for biodiesel production.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Renewable & Sustainable Energy Reviews
T1  - Calcium oxide as a promising heterogeneous catalyst for biodiesel production: Current state and perspectives
VL  - 56
SP  - 1387
EP  - 1408
DO  - 10.1016/j.rser.2015.12.007
ER  - 

@article{
author = "Marinković, Dalibor and Stanković, Miroslav and Velickovic, Ana V and Avramović, Jelena M. and Miladinović, Marija R. and Stamenković, Olivera and Veljković, Vlada B. and Jovanović, Dušan M.",
year = "2016",
abstract = "The present paper is an overview of the recent progress in the development of various CaO-based catalysts suitable for biodiesel production. The mechanism, kinetics and optimization of transesterification reaction over these catalysts are first considered. Then, the practical application of CaO-based catalysts is discussed with a special stress on leaching and reusability of these catalysts. Also, various continuous reactor systems currently in use for biodiesel production are appraised. In addition to it, purification of crude biodiesel and the ecological aspects of using CaO-based catalysts are considered. Finally, the potentials of CaO-based catalysts for heterogeneous catalysis for biodiesel production are emphasized to assess the future perspectives of their use. This review might help in selecting suitable CaO-based catalysts and the optimum reaction conditions for biodiesel production.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Renewable & Sustainable Energy Reviews",
title = "Calcium oxide as a promising heterogeneous catalyst for biodiesel production: Current state and perspectives",
volume = "56",
pages = "1387-1408",
doi = "10.1016/j.rser.2015.12.007"
}

Marinković, D., Stanković, M., Velickovic, A. V., Avramović, J. M., Miladinović, M. R., Stamenković, O., Veljković, V. B.,& Jovanović, D. M.. (2016). Calcium oxide as a promising heterogeneous catalyst for biodiesel production: Current state and perspectives. in Renewable & Sustainable Energy Reviews
Oxford : Pergamon-Elsevier Science Ltd., 56, 1387-1408.
https://doi.org/10.1016/j.rser.2015.12.007

Marinković D, Stanković M, Velickovic AV, Avramović JM, Miladinović MR, Stamenković O, Veljković VB, Jovanović DM. Calcium oxide as a promising heterogeneous catalyst for biodiesel production: Current state and perspectives. in Renewable & Sustainable Energy Reviews. 2016;56:1387-1408.
doi:10.1016/j.rser.2015.12.007 .

Marinković, Dalibor, Stanković, Miroslav, Velickovic, Ana V, Avramović, Jelena M., Miladinović, Marija R., Stamenković, Olivera, Veljković, Vlada B., Jovanović, Dušan M., "Calcium oxide as a promising heterogeneous catalyst for biodiesel production: Current state and perspectives" in Renewable & Sustainable Energy Reviews, 56 (2016):1387-1408,
https://doi.org/10.1016/j.rser.2015.12.007 . .

TY  - JOUR
AU  - Miladinović, Marija R
AU  - Krstić, Jugoslav
AU  - Tasic, Marija B
AU  - Stamenković, Olivera
AU  - Veljković, Vlada B.
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1438
AB  - The quicklime-catalyzed sunflower oil methanolysis was studied at mild reaction conditions. Quicklime (calcined at 550 degrees C for 4h) in amounts of 1.0, 2.5, 5.0 and 10.0% (based on the oil weight) and different molar ratios of methanol-to-oil (6:1, 12:1 and 18:1) were employed to investigate their influence on the methyl esters content and the kinetics of the methanolysis reaction. The optimal methanol-to-oil molar ratio and quicklime amount for achieving the highest fatty acid methyl esters content were established to be 12:1 and 5% (based on the oil weight), respectively. The sigmoidal kinetics of quicklime-catalyzed methanolysis reaction was described by a model which included the changing mechanism of the reaction and the triacylglycerols mass transfer limitation. The kinetic parameters were determined and correlated with the process variables. A good agreement between the kinetic model and the experimental data for all applied reaction conditions was observed.
PB  - Inst Chemical Engineers, Rugby
T2  - Chemical Engineering Research & Design
T1  - A kinetic study of quicklime-catalyzed sunflower oil methanolysis
VL  - 92
IS  - 9
SP  - 1740
EP  - 1752
DO  - 10.1016/j.cherd.2013.11.023
ER  - 

@article{
author = "Miladinović, Marija R and Krstić, Jugoslav and Tasic, Marija B and Stamenković, Olivera and Veljković, Vlada B.",
year = "2014",
abstract = "The quicklime-catalyzed sunflower oil methanolysis was studied at mild reaction conditions. Quicklime (calcined at 550 degrees C for 4h) in amounts of 1.0, 2.5, 5.0 and 10.0% (based on the oil weight) and different molar ratios of methanol-to-oil (6:1, 12:1 and 18:1) were employed to investigate their influence on the methyl esters content and the kinetics of the methanolysis reaction. The optimal methanol-to-oil molar ratio and quicklime amount for achieving the highest fatty acid methyl esters content were established to be 12:1 and 5% (based on the oil weight), respectively. The sigmoidal kinetics of quicklime-catalyzed methanolysis reaction was described by a model which included the changing mechanism of the reaction and the triacylglycerols mass transfer limitation. The kinetic parameters were determined and correlated with the process variables. A good agreement between the kinetic model and the experimental data for all applied reaction conditions was observed.",
publisher = "Inst Chemical Engineers, Rugby",
journal = "Chemical Engineering Research & Design",
title = "A kinetic study of quicklime-catalyzed sunflower oil methanolysis",
volume = "92",
number = "9",
pages = "1740-1752",
doi = "10.1016/j.cherd.2013.11.023"
}

Miladinović, M. R., Krstić, J., Tasic, M. B., Stamenković, O.,& Veljković, V. B.. (2014). A kinetic study of quicklime-catalyzed sunflower oil methanolysis. in Chemical Engineering Research & Design
Inst Chemical Engineers, Rugby., 92(9), 1740-1752.
https://doi.org/10.1016/j.cherd.2013.11.023

Miladinović MR, Krstić J, Tasic MB, Stamenković O, Veljković VB. A kinetic study of quicklime-catalyzed sunflower oil methanolysis. in Chemical Engineering Research & Design. 2014;92(9):1740-1752.
doi:10.1016/j.cherd.2013.11.023 .

Miladinović, Marija R, Krstić, Jugoslav, Tasic, Marija B, Stamenković, Olivera, Veljković, Vlada B., "A kinetic study of quicklime-catalyzed sunflower oil methanolysis" in Chemical Engineering Research & Design, 92, no. 9 (2014):1740-1752,
https://doi.org/10.1016/j.cherd.2013.11.023 . .