TY  - CONF
AU  - Janković, Bojan
AU  - Janković, Marija
AU  - Cvetković, Slobodan
AU  - Manić, Nebojša
AU  - Pijović-Radovanović, Milena
AU  - Perendija, Jovana
AU  - Cvetinović, Dejan
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7404
AB  - Biomasa se smatra važnim obnovljivim resursom, koji igra ključnu ulogu u razvoju održivih energetskih sistema. Biomasa se može pretvoriti u energiju ili vredne hemikalije sagorevanjem, utečnjavanjem, pirolizom i gasifikacijom. Među ovim procesima, termička gasifikacija ‛razlaže’ biomasu u lake hemijske vrste na visokim temperaturama, koje se mogu primeniti na biomasu sa najvećom raznovrsnošću. Kao krajnji (ciljni) proizvod gasifikacije biomase, singas ili gas bogat vodonikom (H2), su veoma važni međuproizvodi u petrohemijskoj industriji. Međutim, problematični katran koji se proizvodi tokom gasifikacije mogao bi da donese niz problema. Katalitička gasifikacija biomase je obećavajuća strategija za značajno ublažavanje ovih problema. Katalizatori na bazi prelaznih metala za katalitičku gasifikaciju biomase proučavani su poslednjih decenija. U ovom pregledu se razmatraju različiti katalizatori prelaznih metala za gasifikaciju biomase, uključujući monometalne i bimetalne katalizatore na bazi nikla (Ni) i druge katalizatore na bazi Fe i Pt. Performanse ovih katalizatora su bile procenjene na osnovu primenjenih parametara reakcije, kvaliteta proizvedenog singasa i učinkovitosti u smanjenju katrana. Sumirane su primena DFT (‛funkcionalne teorije gustine’) proračuna i AI (‛veštačke inteligencije’) za proučavanje mehanizama gasifikacije biomase, a takođe je bio i razmatran uzrok deaktivacije katalizatora i regeneracije istrošenih katalizatora. Isto tako, u ovom pregledu, razmotren je potencijal razvoja katalitičke gasifikacije biomase u Republici Srbiji.
AB  - Biomass is considered as an important renewable resource, which plays a key role in the  development of sustainable energy systems. Biomass can be converted into energy or valuable  chemicals by combustion, liquefaction, pyrolysis and gasification. Among these processes, thermal  gasification “decomposes” biomass into the light chemical species at high temperatures, which can  be applied to biomass with the greatest diversity. As the final (target) product of biomass gasification,  syngas or gas rich in hydrogen (H2), are very important intermediate products in the petrochemical  industry. However, the problematic tar produced during gasification could bring a number of  problems. Catalytic biomass gasification is a promising strategy to significantly alleviate these  problems. Transition metal-based catalysts for catalytic biomass gasification have been studied in  recent decades. This review discusses various transition metal catalysts for biomass gasification,  including nickel (Ni)-based monometallic and bimetallic catalysts and other Fe- and Pt-based  catalysts. The performance of these catalysts is evaluated based on the applied reaction parameters,  the quality of the syngas produced, and the tar reduction performance. Applications of DFT (‛Density  Functional Theory’) calculations and AI (‛Artificial Intelligence’) to study biomass gasification  mechanisms are summarized, and the cause of catalyst deactivation and regeneration of spent  catalysts are also discussed. Likewise, in this review, the development potential of catalytic  gasification of biomass in the Republic of Serbia was considered.
PB  - Belgrade : Society of Thermal Engineers of Serbia
C3  - International Conference Power Plants 2023, Programme, Full Papers Proceedings, 8th – 10th November 2023 Zlatibor, Serbia / Međunarodna konferencija Elektrane 2023, Program, Zbornik radova
T1  - Pregled katalitičke gasifikacije biomase pogodne za industriju u Republici Srbiji
T1  - Overview of catalytic gasification of biomass suitable for industry in the Republic of Serbia
SP  - 910
EP  - 921
UR  - https://hdl.handle.net/21.15107/rcub_cer_7404
ER  - 

@conference{
author = "Janković, Bojan and Janković, Marija and Cvetković, Slobodan and Manić, Nebojša and Pijović-Radovanović, Milena and Perendija, Jovana and Cvetinović, Dejan",
year = "2023",
abstract = "Biomasa se smatra važnim obnovljivim resursom, koji igra ključnu ulogu u razvoju održivih energetskih sistema. Biomasa se može pretvoriti u energiju ili vredne hemikalije sagorevanjem, utečnjavanjem, pirolizom i gasifikacijom. Među ovim procesima, termička gasifikacija ‛razlaže’ biomasu u lake hemijske vrste na visokim temperaturama, koje se mogu primeniti na biomasu sa najvećom raznovrsnošću. Kao krajnji (ciljni) proizvod gasifikacije biomase, singas ili gas bogat vodonikom (H2), su veoma važni međuproizvodi u petrohemijskoj industriji. Međutim, problematični katran koji se proizvodi tokom gasifikacije mogao bi da donese niz problema. Katalitička gasifikacija biomase je obećavajuća strategija za značajno ublažavanje ovih problema. Katalizatori na bazi prelaznih metala za katalitičku gasifikaciju biomase proučavani su poslednjih decenija. U ovom pregledu se razmatraju različiti katalizatori prelaznih metala za gasifikaciju biomase, uključujući monometalne i bimetalne katalizatore na bazi nikla (Ni) i druge katalizatore na bazi Fe i Pt. Performanse ovih katalizatora su bile procenjene na osnovu primenjenih parametara reakcije, kvaliteta proizvedenog singasa i učinkovitosti u smanjenju katrana. Sumirane su primena DFT (‛funkcionalne teorije gustine’) proračuna i AI (‛veštačke inteligencije’) za proučavanje mehanizama gasifikacije biomase, a takođe je bio i razmatran uzrok deaktivacije katalizatora i regeneracije istrošenih katalizatora. Isto tako, u ovom pregledu, razmotren je potencijal razvoja katalitičke gasifikacije biomase u Republici Srbiji., Biomass is considered as an important renewable resource, which plays a key role in the  development of sustainable energy systems. Biomass can be converted into energy or valuable  chemicals by combustion, liquefaction, pyrolysis and gasification. Among these processes, thermal  gasification “decomposes” biomass into the light chemical species at high temperatures, which can  be applied to biomass with the greatest diversity. As the final (target) product of biomass gasification,  syngas or gas rich in hydrogen (H2), are very important intermediate products in the petrochemical  industry. However, the problematic tar produced during gasification could bring a number of  problems. Catalytic biomass gasification is a promising strategy to significantly alleviate these  problems. Transition metal-based catalysts for catalytic biomass gasification have been studied in  recent decades. This review discusses various transition metal catalysts for biomass gasification,  including nickel (Ni)-based monometallic and bimetallic catalysts and other Fe- and Pt-based  catalysts. The performance of these catalysts is evaluated based on the applied reaction parameters,  the quality of the syngas produced, and the tar reduction performance. Applications of DFT (‛Density  Functional Theory’) calculations and AI (‛Artificial Intelligence’) to study biomass gasification  mechanisms are summarized, and the cause of catalyst deactivation and regeneration of spent  catalysts are also discussed. Likewise, in this review, the development potential of catalytic  gasification of biomass in the Republic of Serbia was considered.",
publisher = "Belgrade : Society of Thermal Engineers of Serbia",
journal = "International Conference Power Plants 2023, Programme, Full Papers Proceedings, 8th – 10th November 2023 Zlatibor, Serbia / Međunarodna konferencija Elektrane 2023, Program, Zbornik radova",
title = "Pregled katalitičke gasifikacije biomase pogodne za industriju u Republici Srbiji, Overview of catalytic gasification of biomass suitable for industry in the Republic of Serbia",
pages = "910-921",
url = "https://hdl.handle.net/21.15107/rcub_cer_7404"
}

Janković, B., Janković, M., Cvetković, S., Manić, N., Pijović-Radovanović, M., Perendija, J.,& Cvetinović, D.. (2023). Pregled katalitičke gasifikacije biomase pogodne za industriju u Republici Srbiji. in International Conference Power Plants 2023, Programme, Full Papers Proceedings, 8th – 10th November 2023 Zlatibor, Serbia / Međunarodna konferencija Elektrane 2023, Program, Zbornik radova
Belgrade : Society of Thermal Engineers of Serbia., 910-921.
https://hdl.handle.net/21.15107/rcub_cer_7404

Janković B, Janković M, Cvetković S, Manić N, Pijović-Radovanović M, Perendija J, Cvetinović D. Pregled katalitičke gasifikacije biomase pogodne za industriju u Republici Srbiji. in International Conference Power Plants 2023, Programme, Full Papers Proceedings, 8th – 10th November 2023 Zlatibor, Serbia / Međunarodna konferencija Elektrane 2023, Program, Zbornik radova. 2023;:910-921.
https://hdl.handle.net/21.15107/rcub_cer_7404 .

Janković, Bojan, Janković, Marija, Cvetković, Slobodan, Manić, Nebojša, Pijović-Radovanović, Milena, Perendija, Jovana, Cvetinović, Dejan, "Pregled katalitičke gasifikacije biomase pogodne za industriju u Republici Srbiji" in International Conference Power Plants 2023, Programme, Full Papers Proceedings, 8th – 10th November 2023 Zlatibor, Serbia / Međunarodna konferencija Elektrane 2023, Program, Zbornik radova (2023):910-921,
https://hdl.handle.net/21.15107/rcub_cer_7404 .

TY  - JOUR
AU  - Manić, Nebojša
AU  - Janković, Bojan
AU  - Stojiljković, Dragoslava
AU  - Popović, Mina
AU  - Cvetković, Slobodan
AU  - Mikulčić, Hrvoje
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5594
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).
PB  - Elsevier B.V.
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 and Janković, Bojan 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).",
publisher = "Elsevier B.V.",
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., Janković, B., 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
Elsevier B.V.., 719, 179408.
https://doi.org/10.1016/j.tca.2022.179408

Manić N, Janković B, 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, Janković, Bojan, 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
AU  - Manić, Nebojša
AU  - Popović, Mina
AU  - Cvetković, Slobodan
AU  - Dželetović, Željko
AU  - Stojiljković, Dragoslava
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5647
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.
PB  - 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
SP  - 116275
DO  - 10.1016/j.indcrop.2023.116275
ER  - 

@article{
author = "Janković, Bojan and Manić, Nebojša 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.",
publisher = "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",
pages = "116275",
doi = "10.1016/j.indcrop.2023.116275"
}

Janković, B., Manić, N., 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
Elsevier B.V.., 194, 116275.
https://doi.org/10.1016/j.indcrop.2023.116275

Janković B, Manić N, 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;194:116275.
doi:10.1016/j.indcrop.2023.116275 .

Janković, Bojan, Manić, Nebojša, 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):116275,
https://doi.org/10.1016/j.indcrop.2023.116275 . .

TY  - JOUR
AU  - Janković, Bojan Ž.
AU  - Kojić, Marija
AU  - Milošević, Milena
AU  - Rosić, Milena
AU  - Waisi, Hadi
AU  - Božilović, Bojana
AU  - Manić, Nebojša
AU  - Dodevski, Vladimir
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7162
AB  - Thermo-chemical conversion via the pyrolysis of cigarette butt (CB) filters was successfully valorized and upcycled in the pre-carbonization and carbonization stages. The pre-carbonization stage (devolatilization) of the precursor material (cellulose acetate filter, r-CAcF) was analyzed by micro-scale experiments under non-isothermal conditions using TG-DTG-DTA and DSC techniques. The results of a detailed kinetic study showed that the decomposition of r-CAcF takes place via complex mechanisms, including consecutive reaction steps and two single-step reactions. Consecutive stages include the α-transition referred to as a cellulose polymorphic transformation (cellulose I → II) through crystallization mechanism changes, where a more thermodynamically ordered system was obtained. It was found that the transformation rate of cellulose I → II (‘cellulose regeneration’) is strongly affected by the presence of alkali metals and the deacetylation process. Two single-step reactions showed significant overlapping behavior, which involves a nucleation-controlled scission mechanism (producing levoglucosan, gaseous products, and abundant radicals) and hydrolytic decomposition of cellulose by catalytic cleavage of glycosidic bonds with the presence of an acidic catalyst. A macro-scale experiment showed that the operating temperature and heating rate had the most notable effects on the total surface area of the manufactured carbon. A substantial degree of mesoporosity with a median pore radius of 3.1695 nm was identified. The presence of macroporosity on the carbon surface and acidic surface functional groups was observed.
T2  - Polymers
T1  - Upcycling of the Used Cigarette Butt Filters through Pyrolysis Process: Detailed Kinetic Mechanism with Bio-Char Characterization
VL  - 15
IS  - 14
SP  - 3054
DO  - 10.3390/polym15143054
ER  - 

@article{
author = "Janković, Bojan Ž. and Kojić, Marija and Milošević, Milena and Rosić, Milena and Waisi, Hadi and Božilović, Bojana and Manić, Nebojša and Dodevski, Vladimir",
year = "2023",
abstract = "Thermo-chemical conversion via the pyrolysis of cigarette butt (CB) filters was successfully valorized and upcycled in the pre-carbonization and carbonization stages. The pre-carbonization stage (devolatilization) of the precursor material (cellulose acetate filter, r-CAcF) was analyzed by micro-scale experiments under non-isothermal conditions using TG-DTG-DTA and DSC techniques. The results of a detailed kinetic study showed that the decomposition of r-CAcF takes place via complex mechanisms, including consecutive reaction steps and two single-step reactions. Consecutive stages include the α-transition referred to as a cellulose polymorphic transformation (cellulose I → II) through crystallization mechanism changes, where a more thermodynamically ordered system was obtained. It was found that the transformation rate of cellulose I → II (‘cellulose regeneration’) is strongly affected by the presence of alkali metals and the deacetylation process. Two single-step reactions showed significant overlapping behavior, which involves a nucleation-controlled scission mechanism (producing levoglucosan, gaseous products, and abundant radicals) and hydrolytic decomposition of cellulose by catalytic cleavage of glycosidic bonds with the presence of an acidic catalyst. A macro-scale experiment showed that the operating temperature and heating rate had the most notable effects on the total surface area of the manufactured carbon. A substantial degree of mesoporosity with a median pore radius of 3.1695 nm was identified. The presence of macroporosity on the carbon surface and acidic surface functional groups was observed.",
journal = "Polymers",
title = "Upcycling of the Used Cigarette Butt Filters through Pyrolysis Process: Detailed Kinetic Mechanism with Bio-Char Characterization",
volume = "15",
number = "14",
pages = "3054",
doi = "10.3390/polym15143054"
}

Janković, B. Ž., Kojić, M., Milošević, M., Rosić, M., Waisi, H., Božilović, B., Manić, N.,& Dodevski, V.. (2023). Upcycling of the Used Cigarette Butt Filters through Pyrolysis Process: Detailed Kinetic Mechanism with Bio-Char Characterization. in Polymers, 15(14), 3054.
https://doi.org/10.3390/polym15143054

Janković BŽ, Kojić M, Milošević M, Rosić M, Waisi H, Božilović B, Manić N, Dodevski V. Upcycling of the Used Cigarette Butt Filters through Pyrolysis Process: Detailed Kinetic Mechanism with Bio-Char Characterization. in Polymers. 2023;15(14):3054.
doi:10.3390/polym15143054 .

Janković, Bojan Ž., Kojić, Marija, Milošević, Milena, Rosić, Milena, Waisi, Hadi, Božilović, Bojana, Manić, Nebojša, Dodevski, Vladimir, "Upcycling of the Used Cigarette Butt Filters through Pyrolysis Process: Detailed Kinetic Mechanism with Bio-Char Characterization" in Polymers, 15, no. 14 (2023):3054,
https://doi.org/10.3390/polym15143054 . .