TY  - JOUR
AU  - Manić, Nebojša G.
AU  - Janković, Bojan Ž.
AU  - Stojiljković, Dragoslava
AU  - Popović, Mina
AU  - Cvetković, Slobodan
AU  - Mikulčić, Hrvoje
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10595
AB  - The actual paper analyses the performance of different energy crop biomasses, Miscanthus x giganteus Greef et Deu (EC-1) and Arundo donax L. (EC-2) stems, during slow pyrolysis process monitored by simultaneous TG-DTG-MS techniques, through chemical exergy analysis. In addition to considering the physical and chemical characteristics of given feedstocks for their efficient thermo-chemical conversion into pyrolytic gas, in this study, a theoretical simulation for their implementation use in the gasification process was also performed. The performed thermodynamic study with detailed exergy analysis showed that the large contribution of exergy in syngas components such as CO and H2 originates primarily from cellulose pyrolysis of EC-1, while large exergy contribution in syngas component as CH4 originates from lignin pyrolysis of EC-2. It was founded that the exergy efficiency of syngas for EC-1 equals 19.04%, which is lower than the exergy efficiency of syngas for EC-2 (20.46%), as a result of higher ash content in EC-1. Also, it was reported that higher carbon (C) and hydrogen (H) contents present in the EC-2 sample generate higher gaseous energy and exergy values, i.e. the increment of exergy efficiency of syngas, by both approaches (pyrolysis and gasification exergy analysis), but results in a lower biomass chemical exergy (18.28 MJ kg−1). The methodology applied to the gasification process was shown a higher exergy efficiency for EC-2 (∼36 – 42%) than for EC-1 (∼33 – 39%), dependant on the equivalence ratio (ER).
T2  - Thermochimica Acta
T1  - Thermodynamic study on energy crops thermochemical conversion to increase the efficiency of energy production
VL  - 719
SP  - 179408
DO  - 10.1016/j.tca.2022.179408
ER  - 

@article{
author = "Manić, Nebojša G. and Janković, Bojan Ž. and Stojiljković, Dragoslava and Popović, Mina and Cvetković, Slobodan and Mikulčić, Hrvoje",
year = "2023",
abstract = "The actual paper analyses the performance of different energy crop biomasses, Miscanthus x giganteus Greef et Deu (EC-1) and Arundo donax L. (EC-2) stems, during slow pyrolysis process monitored by simultaneous TG-DTG-MS techniques, through chemical exergy analysis. In addition to considering the physical and chemical characteristics of given feedstocks for their efficient thermo-chemical conversion into pyrolytic gas, in this study, a theoretical simulation for their implementation use in the gasification process was also performed. The performed thermodynamic study with detailed exergy analysis showed that the large contribution of exergy in syngas components such as CO and H2 originates primarily from cellulose pyrolysis of EC-1, while large exergy contribution in syngas component as CH4 originates from lignin pyrolysis of EC-2. It was founded that the exergy efficiency of syngas for EC-1 equals 19.04%, which is lower than the exergy efficiency of syngas for EC-2 (20.46%), as a result of higher ash content in EC-1. Also, it was reported that higher carbon (C) and hydrogen (H) contents present in the EC-2 sample generate higher gaseous energy and exergy values, i.e. the increment of exergy efficiency of syngas, by both approaches (pyrolysis and gasification exergy analysis), but results in a lower biomass chemical exergy (18.28 MJ kg−1). The methodology applied to the gasification process was shown a higher exergy efficiency for EC-2 (∼36 – 42%) than for EC-1 (∼33 – 39%), dependant on the equivalence ratio (ER).",
journal = "Thermochimica Acta",
title = "Thermodynamic study on energy crops thermochemical conversion to increase the efficiency of energy production",
volume = "719",
pages = "179408",
doi = "10.1016/j.tca.2022.179408"
}

Manić, N. G., Janković, B. Ž., Stojiljković, D., Popović, M., Cvetković, S.,& Mikulčić, H.. (2023). Thermodynamic study on energy crops thermochemical conversion to increase the efficiency of energy production. in Thermochimica Acta, 719, 179408.
https://doi.org/10.1016/j.tca.2022.179408

Manić NG, Janković BŽ, Stojiljković D, Popović M, Cvetković S, Mikulčić H. Thermodynamic study on energy crops thermochemical conversion to increase the efficiency of energy production. in Thermochimica Acta. 2023;719:179408.
doi:10.1016/j.tca.2022.179408 .

Manić, Nebojša G., Janković, Bojan Ž., Stojiljković, Dragoslava, Popović, Mina, Cvetković, Slobodan, Mikulčić, Hrvoje, "Thermodynamic study on energy crops thermochemical conversion to increase the efficiency of energy production" in Thermochimica Acta, 719 (2023):179408,
https://doi.org/10.1016/j.tca.2022.179408 . .

TY  - JOUR
AU  - Janković, Bojan Ž.
AU  - Manić, Nebojša G.
AU  - Popović, Mina
AU  - Cvetković, Slobodan
AU  - Dželetović, Željko
AU  - Stojiljković, Dragoslava
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10611
AB  - This work provides insight into possibilities of maximum utilization of C3-C4 energy crops for thermo-chemical conversion (slow pyrolysis) into high value biochemicals, platform chemicals, drop-in fuels and combustible gases, using coupled kinetic and thermodynamic analyses. In order to examine the kinetics of decomposition of lignocellulosic components, model-free and model-based methods faded from thermal analysis data were used. Thermodynamic compensation was used for explicatory of entropy controlled process, where conformational changes and chemical exchange directly affect the type and distribution of obtained pyrolytic products. It was shown that external variable (i.e. the heating rate/temperature) does not change either an entire reaction mechanism (mechanistic nature of MG and AD pyrolyses) or transition state, but it changes activation enthalpy and activation entropy which lead to differences in terms of heat energy consumption, pyrolysis favorability and thus rates of generation of activated complex among feedstocks. To investigate the interplay of catalysts (present in feedstocks as minerals) and reactants, selective energy transfer (SET) model was applied. The model showed an activity of catalyst with different outputs towards two reactants, lignin part of the structure in MG and 1,8-cineole in AD. It was shown that AD is more convenient for thermal conversion than MG, regarding to lower transformation energy requirement, higher reactivity, as well as much faster accumulation of products. © 2023 Elsevier B.V.
T2  - Industrial Crops and Products
T1  - Kinetic and thermodynamic compensation phenomena in C3 and C4 energy crops pyrolysis: Implications on reaction mechanisms and product distributions
VL  - 194
DO  - 10.1016/j.indcrop.2023.116275
ER  - 

@article{
author = "Janković, Bojan Ž. and Manić, Nebojša G. and Popović, Mina and Cvetković, Slobodan and Dželetović, Željko and Stojiljković, Dragoslava",
year = "2023",
abstract = "This work provides insight into possibilities of maximum utilization of C3-C4 energy crops for thermo-chemical conversion (slow pyrolysis) into high value biochemicals, platform chemicals, drop-in fuels and combustible gases, using coupled kinetic and thermodynamic analyses. In order to examine the kinetics of decomposition of lignocellulosic components, model-free and model-based methods faded from thermal analysis data were used. Thermodynamic compensation was used for explicatory of entropy controlled process, where conformational changes and chemical exchange directly affect the type and distribution of obtained pyrolytic products. It was shown that external variable (i.e. the heating rate/temperature) does not change either an entire reaction mechanism (mechanistic nature of MG and AD pyrolyses) or transition state, but it changes activation enthalpy and activation entropy which lead to differences in terms of heat energy consumption, pyrolysis favorability and thus rates of generation of activated complex among feedstocks. To investigate the interplay of catalysts (present in feedstocks as minerals) and reactants, selective energy transfer (SET) model was applied. The model showed an activity of catalyst with different outputs towards two reactants, lignin part of the structure in MG and 1,8-cineole in AD. It was shown that AD is more convenient for thermal conversion than MG, regarding to lower transformation energy requirement, higher reactivity, as well as much faster accumulation of products. © 2023 Elsevier B.V.",
journal = "Industrial Crops and Products",
title = "Kinetic and thermodynamic compensation phenomena in C3 and C4 energy crops pyrolysis: Implications on reaction mechanisms and product distributions",
volume = "194",
doi = "10.1016/j.indcrop.2023.116275"
}

Janković, B. Ž., Manić, N. G., Popović, M., Cvetković, S., Dželetović, Ž.,& Stojiljković, D.. (2023). Kinetic and thermodynamic compensation phenomena in C3 and C4 energy crops pyrolysis: Implications on reaction mechanisms and product distributions. in Industrial Crops and Products, 194.
https://doi.org/10.1016/j.indcrop.2023.116275

Janković BŽ, Manić NG, Popović M, Cvetković S, Dželetović Ž, Stojiljković D. Kinetic and thermodynamic compensation phenomena in C3 and C4 energy crops pyrolysis: Implications on reaction mechanisms and product distributions. in Industrial Crops and Products. 2023;194.
doi:10.1016/j.indcrop.2023.116275 .

Janković, Bojan Ž., Manić, Nebojša G., Popović, Mina, Cvetković, Slobodan, Dželetović, Željko, Stojiljković, Dragoslava, "Kinetic and thermodynamic compensation phenomena in C3 and C4 energy crops pyrolysis: Implications on reaction mechanisms and product distributions" in Industrial Crops and Products, 194 (2023),
https://doi.org/10.1016/j.indcrop.2023.116275 . .

TY  - CHAP
AU  - Cvetković, Slobodan M.
AU  - Popović, Mina
AU  - Grbović-Novaković, Jasmina
AU  - Kijevčanin, Mirjana Lj.
AU  - Oncel, Suphi S.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11729
AB  - This chapter aims to evaluate energy flows in the life cycle of biogas utilization (i.e., production of thermal energy, cogeneration, traffic, and production of hydrogen), starting from feedstock and anaerobic digestion, up to the digestate as fertilizer for agricultural production. The analysis is based on the out-turn of a biogas plant on the dairy farm Mirotin Vrbas, Republic of Serbia. Life Cycle Energy Assessment (LCEA), presented in this chapter, has demonstrated that three scenarios – biogas for heat production, biogas in cogeneration, and biomethane in transportation have positive energy balances, which indicate that in terms of replacement of fossil fuel consumption, these energy systems are promising alternatives. In the fourth scenario, where biogas is used for hydrogen production, the energy balance is negative, therefore socio-economical factors should be considered for overall consideration to ensure sustainability.
PB  - Springer International Publishing
T2  - A Sustainable Green Future: Perspectives on Energy, Economy, Industry, Cities and Environment
T2  - A Sustainable Green Future: Perspectives on Energy, Economy, Industry, Cities and Environment
T1  - A Life Cycle Energy Assessment for Biogas as Energy Carrier
SP  - 595
EP  - 612
DO  - 10.1007/978-3-031-24942-6_28
ER  - 

@inbook{
author = "Cvetković, Slobodan M. and Popović, Mina and Grbović-Novaković, Jasmina and Kijevčanin, Mirjana Lj. and Oncel, Suphi S.",
year = "2023",
abstract = "This chapter aims to evaluate energy flows in the life cycle of biogas utilization (i.e., production of thermal energy, cogeneration, traffic, and production of hydrogen), starting from feedstock and anaerobic digestion, up to the digestate as fertilizer for agricultural production. The analysis is based on the out-turn of a biogas plant on the dairy farm Mirotin Vrbas, Republic of Serbia. Life Cycle Energy Assessment (LCEA), presented in this chapter, has demonstrated that three scenarios – biogas for heat production, biogas in cogeneration, and biomethane in transportation have positive energy balances, which indicate that in terms of replacement of fossil fuel consumption, these energy systems are promising alternatives. In the fourth scenario, where biogas is used for hydrogen production, the energy balance is negative, therefore socio-economical factors should be considered for overall consideration to ensure sustainability.",
publisher = "Springer International Publishing",
journal = "A Sustainable Green Future: Perspectives on Energy, Economy, Industry, Cities and Environment, A Sustainable Green Future: Perspectives on Energy, Economy, Industry, Cities and Environment",
booktitle = "A Life Cycle Energy Assessment for Biogas as Energy Carrier",
pages = "595-612",
doi = "10.1007/978-3-031-24942-6_28"
}

Cvetković, S. M., Popović, M., Grbović-Novaković, J., Kijevčanin, M. Lj.,& Oncel, S. S.. (2023). A Life Cycle Energy Assessment for Biogas as Energy Carrier. in A Sustainable Green Future: Perspectives on Energy, Economy, Industry, Cities and Environment
Springer International Publishing., 595-612.
https://doi.org/10.1007/978-3-031-24942-6_28

Cvetković SM, Popović M, Grbović-Novaković J, Kijevčanin ML, Oncel SS. A Life Cycle Energy Assessment for Biogas as Energy Carrier. in A Sustainable Green Future: Perspectives on Energy, Economy, Industry, Cities and Environment. 2023;:595-612.
doi:10.1007/978-3-031-24942-6_28 .

Cvetković, Slobodan M., Popović, Mina, Grbović-Novaković, Jasmina, Kijevčanin, Mirjana Lj., Oncel, Suphi S., "A Life Cycle Energy Assessment for Biogas as Energy Carrier" in A Sustainable Green Future: Perspectives on Energy, Economy, Industry, Cities and Environment (2023):595-612,
https://doi.org/10.1007/978-3-031-24942-6_28 . .

TY  - JOUR
AU  - Marinković, Aleksandar
AU  - Vuksanović, Marija M.
AU  - Karić, Nataša
AU  - Đokić, Veljko
AU  - Popović, Mina
AU  - Jančić-Heinemann, Radmila
AU  - Tomić, Nataša
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9761
AB  - As a renewable resource, starch is considered to be fully biodegradable and nonpolluting to the environment but the hygroscopicity of starch is the main disadvantage for wider applicability in the production of a polymer-based material. Hydrophobically modified starch prepared using natural-based plasticizers/modifiers in a first step ([-]-diisopropyl D-tartrate [DiPT], ricinoleic acid [RA] and epoxidized soybean oil [ESO]), and maleated polypropylene (MAPP) in a second step contributed to better compatibility, and thus reinforcing of composites. Tailored processing conditions, structural/morphological properties, hydrophobicity, and water-resistance of the modified starch were established. In addition, the Charpy impact and tensile strength of composites, based on poly(ethylene-co-acrylic acid) (EAA) and modified starches, were determined. Increased tensile strength and Young modulus of the composite using starch-modified with DiPT-MAPP, that is, 3 and 83%, respectively, indicated the possible applicability of obtained materials.
T2  - Polymer Composites
T1  - The effect of natural modifiers for starch hydrophobization on performance of composite based on ethylene acrylic acid copolymer
VL  - 42
IS  - 3
SP  - 1325
EP  - 1337
DO  - 10.1002/pc.25903
ER  - 

@article{
author = "Marinković, Aleksandar and Vuksanović, Marija M. and Karić, Nataša and Đokić, Veljko and Popović, Mina and Jančić-Heinemann, Radmila and Tomić, Nataša",
year = "2021",
abstract = "As a renewable resource, starch is considered to be fully biodegradable and nonpolluting to the environment but the hygroscopicity of starch is the main disadvantage for wider applicability in the production of a polymer-based material. Hydrophobically modified starch prepared using natural-based plasticizers/modifiers in a first step ([-]-diisopropyl D-tartrate [DiPT], ricinoleic acid [RA] and epoxidized soybean oil [ESO]), and maleated polypropylene (MAPP) in a second step contributed to better compatibility, and thus reinforcing of composites. Tailored processing conditions, structural/morphological properties, hydrophobicity, and water-resistance of the modified starch were established. In addition, the Charpy impact and tensile strength of composites, based on poly(ethylene-co-acrylic acid) (EAA) and modified starches, were determined. Increased tensile strength and Young modulus of the composite using starch-modified with DiPT-MAPP, that is, 3 and 83%, respectively, indicated the possible applicability of obtained materials.",
journal = "Polymer Composites",
title = "The effect of natural modifiers for starch hydrophobization on performance of composite based on ethylene acrylic acid copolymer",
volume = "42",
number = "3",
pages = "1325-1337",
doi = "10.1002/pc.25903"
}

Marinković, A., Vuksanović, M. M., Karić, N., Đokić, V., Popović, M., Jančić-Heinemann, R.,& Tomić, N.. (2021). The effect of natural modifiers for starch hydrophobization on performance of composite based on ethylene acrylic acid copolymer. in Polymer Composites, 42(3), 1325-1337.
https://doi.org/10.1002/pc.25903

Marinković A, Vuksanović MM, Karić N, Đokić V, Popović M, Jančić-Heinemann R, Tomić N. The effect of natural modifiers for starch hydrophobization on performance of composite based on ethylene acrylic acid copolymer. in Polymer Composites. 2021;42(3):1325-1337.
doi:10.1002/pc.25903 .

Marinković, Aleksandar, Vuksanović, Marija M., Karić, Nataša, Đokić, Veljko, Popović, Mina, Jančić-Heinemann, Radmila, Tomić, Nataša, "The effect of natural modifiers for starch hydrophobization on performance of composite based on ethylene acrylic acid copolymer" in Polymer Composites, 42, no. 3 (2021):1325-1337,
https://doi.org/10.1002/pc.25903 . .