TY  - CONF
AU  - Janković, Bojan
AU  - Janković, Marija
AU  - Krneta Nikolić, Jelena
AU  - Rajačić, Milica
AU  - Vukanac, Ivana
AU  - Sarap, Nataša
AU  - Manić, Nebojša
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12589
AB  - In this work, the thermal decomposition process of coal bottom ash (collected after lignitecombustion in coal-fired power plant “Kostolac B” (TEKO-B), Serbia) was investigated, usingsimultaneous TG (thermogravimetry) – DTG (derivative thermogravimetry) techniquesin an inert (Ar) atmosphere, at various heating rates (10.3, 20.9 and 32.1 K/min). In additionto thermal characterization of the sample, the chemical composition and naturally occurredradionuclides were also determined. Using the model-free (isoconversional) (by Friedman(FR), Kissinger-Akahira-Sunose (KAS), Ozawa-Flynn-Wall (OFW) and Vyazovkin (VY)methods) analysis, the complex kinetic nature of the process was successfully resolved. Theconducted numerical optimization of the process (using non-linear least square optimization)had confirmed accuracy and reliability of estimated kinetic parameters. Model-based(model-fitting) kinetic analysis showed the existence of a complex reaction scheme, overtwo consecutive reactions steps and one single-stage reaction step, via mechanism order An,F2, Fn, R3, Cnm (through n-dimensional nucleation/growth, chemical reactions, and n-thorder and m-power with autocatalysis mechanisms). Through physicochemical interpretationof mechanism scheme, an assessment of recovery of valuable metals and metal oxides wasperformed, by analysing the concentration of reaction species in a function of temperature ofindividual steps. Likewise, the influence of certain precursor involved in decomposition processas catalyst (in order to increase the yield of targeted product) was also inspected. Finally,the simulation of actual process using the results obtained from applied methods/models wasperformed, through application of modulated dynamic (MD) prediction.
PB  - Budapest : Akadémiai Kiadó
C3  - JTACC 2023 : 3rd Journal of Thermal Analysis and Calorimetry Conference and 9th V4 (Joint Czech-Hungarian-Polish-Slovakian) Thermoanalytical Conference : Book of asbtracts
T1  - Recovering of metals and metal oxides through thermal decomposition process of coal bottom ash: a comprehensive kinetic analysis
SP  - 263
EP  - 263
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12589
ER  - 

@conference{
author = "Janković, Bojan and Janković, Marija and Krneta Nikolić, Jelena and Rajačić, Milica and Vukanac, Ivana and Sarap, Nataša and Manić, Nebojša",
year = "2023",
abstract = "In this work, the thermal decomposition process of coal bottom ash (collected after lignitecombustion in coal-fired power plant “Kostolac B” (TEKO-B), Serbia) was investigated, usingsimultaneous TG (thermogravimetry) – DTG (derivative thermogravimetry) techniquesin an inert (Ar) atmosphere, at various heating rates (10.3, 20.9 and 32.1 K/min). In additionto thermal characterization of the sample, the chemical composition and naturally occurredradionuclides were also determined. Using the model-free (isoconversional) (by Friedman(FR), Kissinger-Akahira-Sunose (KAS), Ozawa-Flynn-Wall (OFW) and Vyazovkin (VY)methods) analysis, the complex kinetic nature of the process was successfully resolved. Theconducted numerical optimization of the process (using non-linear least square optimization)had confirmed accuracy and reliability of estimated kinetic parameters. Model-based(model-fitting) kinetic analysis showed the existence of a complex reaction scheme, overtwo consecutive reactions steps and one single-stage reaction step, via mechanism order An,F2, Fn, R3, Cnm (through n-dimensional nucleation/growth, chemical reactions, and n-thorder and m-power with autocatalysis mechanisms). Through physicochemical interpretationof mechanism scheme, an assessment of recovery of valuable metals and metal oxides wasperformed, by analysing the concentration of reaction species in a function of temperature ofindividual steps. Likewise, the influence of certain precursor involved in decomposition processas catalyst (in order to increase the yield of targeted product) was also inspected. Finally,the simulation of actual process using the results obtained from applied methods/models wasperformed, through application of modulated dynamic (MD) prediction.",
publisher = "Budapest : Akadémiai Kiadó",
journal = "JTACC 2023 : 3rd Journal of Thermal Analysis and Calorimetry Conference and 9th V4 (Joint Czech-Hungarian-Polish-Slovakian) Thermoanalytical Conference : Book of asbtracts",
title = "Recovering of metals and metal oxides through thermal decomposition process of coal bottom ash: a comprehensive kinetic analysis",
pages = "263-263",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12589"
}

Janković, B., Janković, M., Krneta Nikolić, J., Rajačić, M., Vukanac, I., Sarap, N.,& Manić, N.. (2023). Recovering of metals and metal oxides through thermal decomposition process of coal bottom ash: a comprehensive kinetic analysis. in JTACC 2023 : 3rd Journal of Thermal Analysis and Calorimetry Conference and 9th V4 (Joint Czech-Hungarian-Polish-Slovakian) Thermoanalytical Conference : Book of asbtracts
Budapest : Akadémiai Kiadó., 263-263.
https://hdl.handle.net/21.15107/rcub_vinar_12589

Janković B, Janković M, Krneta Nikolić J, Rajačić M, Vukanac I, Sarap N, Manić N. Recovering of metals and metal oxides through thermal decomposition process of coal bottom ash: a comprehensive kinetic analysis. in JTACC 2023 : 3rd Journal of Thermal Analysis and Calorimetry Conference and 9th V4 (Joint Czech-Hungarian-Polish-Slovakian) Thermoanalytical Conference : Book of asbtracts. 2023;:263-263.
https://hdl.handle.net/21.15107/rcub_vinar_12589 .

Janković, Bojan, Janković, Marija, Krneta Nikolić, Jelena, Rajačić, Milica, Vukanac, Ivana, Sarap, Nataša, Manić, Nebojša, "Recovering of metals and metal oxides through thermal decomposition process of coal bottom ash: a comprehensive kinetic analysis" in JTACC 2023 : 3rd Journal of Thermal Analysis and Calorimetry Conference and 9th V4 (Joint Czech-Hungarian-Polish-Slovakian) Thermoanalytical Conference : Book of asbtracts (2023):263-263,
https://hdl.handle.net/21.15107/rcub_vinar_12589 .

TY  - CONF
AU  - Brat, Zagorka
AU  - Janković, Bojan
AU  - Stojiljković, Dragoslava
AU  - Vujanović, Milan
AU  - Wang, Xuebin
AU  - Manić, Nebojša
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12612
AB  - The pyrolysis process of two low-rank coals (lignite Kostolac and Kolubara), and two wastematerials (spent coffee ground and tyre rubber granulate) as well as their blends, have beenexamined by preliminary thermogravimetric analysis. Thermal decomposition experiments wereperformed in an N2 atmosphere on raw (pyrolysis) and blend (co-pyrolysis) samples at heatingrates of 10, 15, and 20 K min-1. The lignite-waste blend was created in the following masspercentage ratios 90:10, 80:20, and 70:30. Based on obtained experimental data, the stronginteractions were identified between the examined lignite and waste materials during copyrolysis,indicating the presence of a positive synergistic effect. The characteristics of the rawwaste sample and the heating rate were recognized as two key parameters that influenced thesynergy result with lignite sample, in lignite-spent coffee ground blends. For lignite-waste rubbergranulate blends, the blending ratio is critical for beneficial synergistic effect (ratios of wasterubber granulate with lignite less than 30% are preferred). The probable synergistic mechanismswere further explained using performed kinetic analysis by varying the effective activation energywith temperature and conversion. In addition, the influence of micro-scale conditioncharacteristics such as heating rate (as the experimental regulatory factor) on the magnituderesponse of synergistic effect during co-pyrolysis was also investigated in this work.
PB  - SDEWES - International Centre for Sustainable Development of Energy, Water and Environment Systems
PB  - Zagreb : Faculty of Mechanical Engineering and Naval Architecture
C3  - 18th Conference on Sustainable Development of Energy, Water and Environment Systems : Proceedings
T1  - Co-Pyrolysis Process of Coal and Waste: Synergistic Effect and Influence of Microscale Conditions
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12612
ER  - 

@conference{
author = "Brat, Zagorka and Janković, Bojan and Stojiljković, Dragoslava and Vujanović, Milan and Wang, Xuebin and Manić, Nebojša",
year = "2023",
abstract = "The pyrolysis process of two low-rank coals (lignite Kostolac and Kolubara), and two wastematerials (spent coffee ground and tyre rubber granulate) as well as their blends, have beenexamined by preliminary thermogravimetric analysis. Thermal decomposition experiments wereperformed in an N2 atmosphere on raw (pyrolysis) and blend (co-pyrolysis) samples at heatingrates of 10, 15, and 20 K min-1. The lignite-waste blend was created in the following masspercentage ratios 90:10, 80:20, and 70:30. Based on obtained experimental data, the stronginteractions were identified between the examined lignite and waste materials during copyrolysis,indicating the presence of a positive synergistic effect. The characteristics of the rawwaste sample and the heating rate were recognized as two key parameters that influenced thesynergy result with lignite sample, in lignite-spent coffee ground blends. For lignite-waste rubbergranulate blends, the blending ratio is critical for beneficial synergistic effect (ratios of wasterubber granulate with lignite less than 30% are preferred). The probable synergistic mechanismswere further explained using performed kinetic analysis by varying the effective activation energywith temperature and conversion. In addition, the influence of micro-scale conditioncharacteristics such as heating rate (as the experimental regulatory factor) on the magnituderesponse of synergistic effect during co-pyrolysis was also investigated in this work.",
publisher = "SDEWES - International Centre for Sustainable Development of Energy, Water and Environment Systems, Zagreb : Faculty of Mechanical Engineering and Naval Architecture",
journal = "18th Conference on Sustainable Development of Energy, Water and Environment Systems : Proceedings",
title = "Co-Pyrolysis Process of Coal and Waste: Synergistic Effect and Influence of Microscale Conditions",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12612"
}

Brat, Z., Janković, B., Stojiljković, D., Vujanović, M., Wang, X.,& Manić, N.. (2023). Co-Pyrolysis Process of Coal and Waste: Synergistic Effect and Influence of Microscale Conditions. in 18th Conference on Sustainable Development of Energy, Water and Environment Systems : Proceedings
SDEWES - International Centre for Sustainable Development of Energy, Water and Environment Systems..
https://hdl.handle.net/21.15107/rcub_vinar_12612

Brat Z, Janković B, Stojiljković D, Vujanović M, Wang X, Manić N. Co-Pyrolysis Process of Coal and Waste: Synergistic Effect and Influence of Microscale Conditions. in 18th Conference on Sustainable Development of Energy, Water and Environment Systems : Proceedings. 2023;.
https://hdl.handle.net/21.15107/rcub_vinar_12612 .

Brat, Zagorka, Janković, Bojan, Stojiljković, Dragoslava, Vujanović, Milan, Wang, Xuebin, Manić, Nebojša, "Co-Pyrolysis Process of Coal and Waste: Synergistic Effect and Influence of Microscale Conditions" in 18th Conference on Sustainable Development of Energy, Water and Environment Systems : Proceedings (2023),
https://hdl.handle.net/21.15107/rcub_vinar_12612 .

TY  - JOUR
AU  - Janković, Bojan
AU  - Manić, Nebojša
AU  - Jović, Mihajlo
AU  - Smičiklas, Ivana
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13118
AB  - The issue of accumulated seashell waste has been increasingly addressed in the studies of its applicability as a secondary source of calcium carbonate. In this work, the mechanism of the thermo-oxidative degradation of two types of mollusk shells (Dosinia exoleta-DE and oyster Ostrea edulis-OE) was investigated using simultaneous thermal analysis. Physicochemical characterization of raw and calcined materials was performed by XRD and SEM techniques. Results show that increasing powder particle size and heating rate affect the degradation of investigated shells differently and have a significant contribution to released quantities of CO2. It was proposed that the calcination rate of DE powders is determined by the strain-induced collapse of CO2-deficient calcite at its interface with crystalline CaO rods-like structure, with simultaneous expulsion of CO2. A much higher CO2 concentration was identified during the degradation of OE powders, favoring the carbonation reaction and, consequently, increasing the temperature and activation energy of the investigated reaction. Under elevated CO2 concentration, the CaO aggregation step is enhanced by slower reaction kinetics at lower temperatures since both CO2 desorption and structural transformations are probably hindered. The proposed mechanism leads to a meaningful correlation between thermodynamic quantities (enthalpy-entropy compensation) in the form of an iso-kinetic relationship.
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Kinetic and thermodynamic analysis of thermo-oxidative degradation of seashell powders with different particle size fractions: compensation effect and iso-equilibrium phenomena
VL  - 147
IS  - 3
SP  - 2305
EP  - 2334
DO  - 10.1007/s10973-020-10474-8
ER  - 

@article{
author = "Janković, Bojan and Manić, Nebojša and Jović, Mihajlo and Smičiklas, Ivana",
year = "2022",
abstract = "The issue of accumulated seashell waste has been increasingly addressed in the studies of its applicability as a secondary source of calcium carbonate. In this work, the mechanism of the thermo-oxidative degradation of two types of mollusk shells (Dosinia exoleta-DE and oyster Ostrea edulis-OE) was investigated using simultaneous thermal analysis. Physicochemical characterization of raw and calcined materials was performed by XRD and SEM techniques. Results show that increasing powder particle size and heating rate affect the degradation of investigated shells differently and have a significant contribution to released quantities of CO2. It was proposed that the calcination rate of DE powders is determined by the strain-induced collapse of CO2-deficient calcite at its interface with crystalline CaO rods-like structure, with simultaneous expulsion of CO2. A much higher CO2 concentration was identified during the degradation of OE powders, favoring the carbonation reaction and, consequently, increasing the temperature and activation energy of the investigated reaction. Under elevated CO2 concentration, the CaO aggregation step is enhanced by slower reaction kinetics at lower temperatures since both CO2 desorption and structural transformations are probably hindered. The proposed mechanism leads to a meaningful correlation between thermodynamic quantities (enthalpy-entropy compensation) in the form of an iso-kinetic relationship.",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Kinetic and thermodynamic analysis of thermo-oxidative degradation of seashell powders with different particle size fractions: compensation effect and iso-equilibrium phenomena",
volume = "147",
number = "3",
pages = "2305-2334",
doi = "10.1007/s10973-020-10474-8"
}

Janković, B., Manić, N., Jović, M.,& Smičiklas, I.. (2022). Kinetic and thermodynamic analysis of thermo-oxidative degradation of seashell powders with different particle size fractions: compensation effect and iso-equilibrium phenomena. in Journal of Thermal Analysis and Calorimetry, 147(3), 2305-2334.
https://doi.org/10.1007/s10973-020-10474-8

Janković B, Manić N, Jović M, Smičiklas I. Kinetic and thermodynamic analysis of thermo-oxidative degradation of seashell powders with different particle size fractions: compensation effect and iso-equilibrium phenomena. in Journal of Thermal Analysis and Calorimetry. 2022;147(3):2305-2334.
doi:10.1007/s10973-020-10474-8 .

Janković, Bojan, Manić, Nebojša, Jović, Mihajlo, Smičiklas, Ivana, "Kinetic and thermodynamic analysis of thermo-oxidative degradation of seashell powders with different particle size fractions: compensation effect and iso-equilibrium phenomena" in Journal of Thermal Analysis and Calorimetry, 147, no. 3 (2022):2305-2334,
https://doi.org/10.1007/s10973-020-10474-8 . .

TY  - CONF
AU  - Veljković, Filip
AU  - Veličković, Suzana
AU  - Manić, Nebojša
AU  - Stajčić, Ivana
AU  - Janković, Bojan
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12615
AB  - This work considers possible uses of fruit-based waste for the production of valuable chemicals and biofuel precursors through recycling by thermochemical conversion. Slow pyrolysis of Goji berry mesocarp (GBM) as sugar-rich feedstock was investigated using simultaneous thermal analysis (STA) measurements in non-isothermal conditions. Results reveal that pyrolysis of GBM represents a promising route to obtain important key platform chemical - 5-hydroxymethylfurfural (5-HMF). It was found that autocatalytic dehydration of fructose (in a presence of Lewis acids) is responsible for production of 5-HMF at a low heating rate (5.0 K/min) with a maximum 5-HMF theoretical yield of 63.20 %. Higher heating rates (10.0 and 15.0 K/min) trigger fructose autogenesis behavior which opens the transferability channel to glucose engagement for 5-HMF theoretical high yield production.
C3  - PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings
T1  - TG-DTG analysis of fruit-based waste pyrolysis: A case study of goji berry mesocarp
VL  - 2
SP  - 553
EP  - 556
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12615
ER  - 

@conference{
author = "Veljković, Filip and Veličković, Suzana and Manić, Nebojša and Stajčić, Ivana and Janković, Bojan",
year = "2022",
abstract = "This work considers possible uses of fruit-based waste for the production of valuable chemicals and biofuel precursors through recycling by thermochemical conversion. Slow pyrolysis of Goji berry mesocarp (GBM) as sugar-rich feedstock was investigated using simultaneous thermal analysis (STA) measurements in non-isothermal conditions. Results reveal that pyrolysis of GBM represents a promising route to obtain important key platform chemical - 5-hydroxymethylfurfural (5-HMF). It was found that autocatalytic dehydration of fructose (in a presence of Lewis acids) is responsible for production of 5-HMF at a low heating rate (5.0 K/min) with a maximum 5-HMF theoretical yield of 63.20 %. Higher heating rates (10.0 and 15.0 K/min) trigger fructose autogenesis behavior which opens the transferability channel to glucose engagement for 5-HMF theoretical high yield production.",
journal = "PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings",
title = "TG-DTG analysis of fruit-based waste pyrolysis: A case study of goji berry mesocarp",
volume = "2",
pages = "553-556",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12615"
}

Veljković, F., Veličković, S., Manić, N., Stajčić, I.,& Janković, B.. (2022). TG-DTG analysis of fruit-based waste pyrolysis: A case study of goji berry mesocarp. in PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings, 2, 553-556.
https://hdl.handle.net/21.15107/rcub_vinar_12615

Veljković F, Veličković S, Manić N, Stajčić I, Janković B. TG-DTG analysis of fruit-based waste pyrolysis: A case study of goji berry mesocarp. in PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings. 2022;2:553-556.
https://hdl.handle.net/21.15107/rcub_vinar_12615 .

Veljković, Filip, Veličković, Suzana, Manić, Nebojša, Stajčić, Ivana, Janković, Bojan, "TG-DTG analysis of fruit-based waste pyrolysis: A case study of goji berry mesocarp" in PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings, 2 (2022):553-556,
https://hdl.handle.net/21.15107/rcub_vinar_12615 .

TY  - CONF
AU  - Manić, Nebojša
AU  - Balać, Martina
AU  - Stojiljković, Dragoslava
AU  - Janković, Bojan
AU  - Stanisavljević, Zorana
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12623
AB  - Rapid industrialization together with issues over the depletion of traditional fuel supplies and environmental concerns have prompted researchers to look into developing an environmentally safe, renewable, costeffective, and long-term alternative energy source. Agriculture biomass is recognized as a potentially viable solution for utilization in the energy sector for achieving the sustainable and long-term transformation into energy and/or fuels. This type of biomass is generated in large amounts across the world, which may be converted to biofuels using a variety of methods. However, concerns related to the competing agricultural biomass applications need to be thoroughly examined taking into account both the short- and long-term actuality, and its impact on the soil by conversion to biofuels. According to common practice agriculturalbiomass is dominantly used for biogas production due to its availability and simplicity of handling. Based on all mentioned the assessment of the most applicable raw materials for biogas production is essential for achievingthe sustainability criteria and promoting using biomass for energy production. In this paper, a theoretical approach was applied for experimentally obtained results of proximate and ultimate analysis of different biomass materials as a possible feedstock for biomass production. Based on data of proximate and ultimate analysis the theoretical biomechanical methane potential (TBMP) for considered samples was calculated. According to obtained results, agricultural biomass shows validity of use for biogas production considering the fulfillment of the raw material minimum quantity.
PB  - Belgrade : Innovation Center of Faculty of Mechanical Engineering
C3  - International Conference of Experimental and Numerical Investigations and New Technologies : Book of abstracts
T1  - Theoretical assesment of raw materials for sustainable biogas production
SP  - 35
EP  - 35
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12623
ER  - 

@conference{
author = "Manić, Nebojša and Balać, Martina and Stojiljković, Dragoslava and Janković, Bojan and Stanisavljević, Zorana",
year = "2022",
abstract = "Rapid industrialization together with issues over the depletion of traditional fuel supplies and environmental concerns have prompted researchers to look into developing an environmentally safe, renewable, costeffective, and long-term alternative energy source. Agriculture biomass is recognized as a potentially viable solution for utilization in the energy sector for achieving the sustainable and long-term transformation into energy and/or fuels. This type of biomass is generated in large amounts across the world, which may be converted to biofuels using a variety of methods. However, concerns related to the competing agricultural biomass applications need to be thoroughly examined taking into account both the short- and long-term actuality, and its impact on the soil by conversion to biofuels. According to common practice agriculturalbiomass is dominantly used for biogas production due to its availability and simplicity of handling. Based on all mentioned the assessment of the most applicable raw materials for biogas production is essential for achievingthe sustainability criteria and promoting using biomass for energy production. In this paper, a theoretical approach was applied for experimentally obtained results of proximate and ultimate analysis of different biomass materials as a possible feedstock for biomass production. Based on data of proximate and ultimate analysis the theoretical biomechanical methane potential (TBMP) for considered samples was calculated. According to obtained results, agricultural biomass shows validity of use for biogas production considering the fulfillment of the raw material minimum quantity.",
publisher = "Belgrade : Innovation Center of Faculty of Mechanical Engineering",
journal = "International Conference of Experimental and Numerical Investigations and New Technologies : Book of abstracts",
title = "Theoretical assesment of raw materials for sustainable biogas production",
pages = "35-35",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12623"
}

Manić, N., Balać, M., Stojiljković, D., Janković, B.,& Stanisavljević, Z.. (2022). Theoretical assesment of raw materials for sustainable biogas production. in International Conference of Experimental and Numerical Investigations and New Technologies : Book of abstracts
Belgrade : Innovation Center of Faculty of Mechanical Engineering., 35-35.
https://hdl.handle.net/21.15107/rcub_vinar_12623

Manić N, Balać M, Stojiljković D, Janković B, Stanisavljević Z. Theoretical assesment of raw materials for sustainable biogas production. in International Conference of Experimental and Numerical Investigations and New Technologies : Book of abstracts. 2022;:35-35.
https://hdl.handle.net/21.15107/rcub_vinar_12623 .

Manić, Nebojša, Balać, Martina, Stojiljković, Dragoslava, Janković, Bojan, Stanisavljević, Zorana, "Theoretical assesment of raw materials for sustainable biogas production" in International Conference of Experimental and Numerical Investigations and New Technologies : Book of abstracts (2022):35-35,
https://hdl.handle.net/21.15107/rcub_vinar_12623 .

TY  - CONF
AU  - Radojević, Miloš
AU  - Janković, Bojan
AU  - Manić, Nebojša
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12624
AB  - This work provides a novel methodology for the comprehensive evolved gas analysisperformed on a lab scale level during the biomass thermal degradation experimental tests.TGA – MS coupling allows accurate correlation between molecular ion peak and fragmentpeaks to the corresponding mass loss rates from DTG curves. Within the proposed semiquantitativeanalysis, MS spectra were interpreted through the comparative analysis ofcompound fragments and of the compound itself, where the single atomic mass unit wasidentified by multiple compounds exhibition [1]. It was shown that by this procedure whichinvolves overlapping multiple curves supervising, the identification of gases in the volatilescomplex scheme becomes more simplified. The simplified scheme for the proposedmethodology with major steps necessary to be performed is presented in Figure 1. By setting up semi-quantitative formulas, easy and reliable calculations of gaseousproducts yield and syngas energy capacities are possible to achieve. The obtained results byproposed methodology for wheat straw sample is given in Table 1.
PB  - The Japan Society of Calorimetry and Thermal Analysis
C3  - Virtual Intercontinental Assembly on Calorimetry and Thermal Analysis (VIACTA2022) : “The 9th international and 11th Japan - China Joint Symposium on Calorimetry and Thermal Analysis” (CATS-2022) : Book of Abstracts
T1  - Application of TGA-MS measurements for evolved gas analysis during pyrolysis process of various biomass
SP  - 64
EP  - 64
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12624
ER  - 

@conference{
author = "Radojević, Miloš and Janković, Bojan and Manić, Nebojša",
year = "2022",
abstract = "This work provides a novel methodology for the comprehensive evolved gas analysisperformed on a lab scale level during the biomass thermal degradation experimental tests.TGA – MS coupling allows accurate correlation between molecular ion peak and fragmentpeaks to the corresponding mass loss rates from DTG curves. Within the proposed semiquantitativeanalysis, MS spectra were interpreted through the comparative analysis ofcompound fragments and of the compound itself, where the single atomic mass unit wasidentified by multiple compounds exhibition [1]. It was shown that by this procedure whichinvolves overlapping multiple curves supervising, the identification of gases in the volatilescomplex scheme becomes more simplified. The simplified scheme for the proposedmethodology with major steps necessary to be performed is presented in Figure 1. By setting up semi-quantitative formulas, easy and reliable calculations of gaseousproducts yield and syngas energy capacities are possible to achieve. The obtained results byproposed methodology for wheat straw sample is given in Table 1.",
publisher = "The Japan Society of Calorimetry and Thermal Analysis",
journal = "Virtual Intercontinental Assembly on Calorimetry and Thermal Analysis (VIACTA2022) : “The 9th international and 11th Japan - China Joint Symposium on Calorimetry and Thermal Analysis” (CATS-2022) : Book of Abstracts",
title = "Application of TGA-MS measurements for evolved gas analysis during pyrolysis process of various biomass",
pages = "64-64",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12624"
}

Radojević, M., Janković, B.,& Manić, N.. (2022). Application of TGA-MS measurements for evolved gas analysis during pyrolysis process of various biomass. in Virtual Intercontinental Assembly on Calorimetry and Thermal Analysis (VIACTA2022) : “The 9th international and 11th Japan - China Joint Symposium on Calorimetry and Thermal Analysis” (CATS-2022) : Book of Abstracts
The Japan Society of Calorimetry and Thermal Analysis., 64-64.
https://hdl.handle.net/21.15107/rcub_vinar_12624

Radojević M, Janković B, Manić N. Application of TGA-MS measurements for evolved gas analysis during pyrolysis process of various biomass. in Virtual Intercontinental Assembly on Calorimetry and Thermal Analysis (VIACTA2022) : “The 9th international and 11th Japan - China Joint Symposium on Calorimetry and Thermal Analysis” (CATS-2022) : Book of Abstracts. 2022;:64-64.
https://hdl.handle.net/21.15107/rcub_vinar_12624 .

Radojević, Miloš, Janković, Bojan, Manić, Nebojša, "Application of TGA-MS measurements for evolved gas analysis during pyrolysis process of various biomass" in Virtual Intercontinental Assembly on Calorimetry and Thermal Analysis (VIACTA2022) : “The 9th international and 11th Japan - China Joint Symposium on Calorimetry and Thermal Analysis” (CATS-2022) : Book of Abstracts (2022):64-64,
https://hdl.handle.net/21.15107/rcub_vinar_12624 .

TY  - JOUR
AU  - Manić, Nebojša
AU  - Janković, Bojan
AU  - Dodevski, Vladimir
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13114
AB  - As representative among biomass feedstocks, Poplar fluff was chosen to analyze the pyrolysis properties of this new biofuel. Thermogravimetry under inert (argon) atmosphere at the heating rates of 5, 10, 15, and 20 degrees C min(-1)was employed in the investigation of thermal processing of studied biomass. The determination of kinetic parameters and estimation of reaction mechanism function were done through application of the state-of-the-art NETZSCH Kinetics NEO software. With this aim, the various model-free models and model-based calculations were implemented. The obtained results showed that the most appropriate kinetic model to describe the thermal decomposition of Poplar fluff sample wasn-dimensional acceleratory Avrami-Erofeev model (An) for three-step consecutive reaction mechanism. Governed reaction pathway in pyrolysis process represents fragmentation reactions which arise from levoglucosan decomposing that permits permanent gases and refractory tars, where diffusion-controlled process is involved in the sample devolatilization. The modulated and multiple-step predictions of pyrolysis process were also carried out.
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Model-free and model-based kinetic analysis of Poplar fluff (Populus alba) pyrolysis process under dynamic conditions
VL  - 143
IS  - 5
SP  - 3419
EP  - 3438
DO  - 10.1007/s10973-020-09675-y
ER  - 

@article{
author = "Manić, Nebojša and Janković, Bojan and Dodevski, Vladimir",
year = "2021",
abstract = "As representative among biomass feedstocks, Poplar fluff was chosen to analyze the pyrolysis properties of this new biofuel. Thermogravimetry under inert (argon) atmosphere at the heating rates of 5, 10, 15, and 20 degrees C min(-1)was employed in the investigation of thermal processing of studied biomass. The determination of kinetic parameters and estimation of reaction mechanism function were done through application of the state-of-the-art NETZSCH Kinetics NEO software. With this aim, the various model-free models and model-based calculations were implemented. The obtained results showed that the most appropriate kinetic model to describe the thermal decomposition of Poplar fluff sample wasn-dimensional acceleratory Avrami-Erofeev model (An) for three-step consecutive reaction mechanism. Governed reaction pathway in pyrolysis process represents fragmentation reactions which arise from levoglucosan decomposing that permits permanent gases and refractory tars, where diffusion-controlled process is involved in the sample devolatilization. The modulated and multiple-step predictions of pyrolysis process were also carried out.",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Model-free and model-based kinetic analysis of Poplar fluff (Populus alba) pyrolysis process under dynamic conditions",
volume = "143",
number = "5",
pages = "3419-3438",
doi = "10.1007/s10973-020-09675-y"
}

Manić, N., Janković, B.,& Dodevski, V.. (2021). Model-free and model-based kinetic analysis of Poplar fluff (Populus alba) pyrolysis process under dynamic conditions. in Journal of Thermal Analysis and Calorimetry, 143(5), 3419-3438.
https://doi.org/10.1007/s10973-020-09675-y

Manić N, Janković B, Dodevski V. Model-free and model-based kinetic analysis of Poplar fluff (Populus alba) pyrolysis process under dynamic conditions. in Journal of Thermal Analysis and Calorimetry. 2021;143(5):3419-3438.
doi:10.1007/s10973-020-09675-y .

Manić, Nebojša, Janković, Bojan, Dodevski, Vladimir, "Model-free and model-based kinetic analysis of Poplar fluff (Populus alba) pyrolysis process under dynamic conditions" in Journal of Thermal Analysis and Calorimetry, 143, no. 5 (2021):3419-3438,
https://doi.org/10.1007/s10973-020-09675-y . .

TY  - CONF
AU  - Manić, Nebojša
AU  - Janković, Bojan
AU  - Stojiljković, Dragoslava
AU  - Jovović, Aleksandar
AU  - Jovanović, Vladimir
AU  - Radojević, Miloš
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12617
AB  - Food wastes are generated massively across global food supply chains. Conventional treatments of food waste (e.g.,landfilling and incineration) could cause environmental, economic and social problems. Valorization of food wasteinto value-added chemicals is a more sustainable and cost-effective option. This paper investigates the slow pyrolysisas an environmentally friendly and efficient way to thermo-chemically conversion of food waste into value-addedproducts. TGA-DTG study of slow pyrolysis of dried Goji berry pulp (GBP) samples was carried out at differentheating rates. To establish pyrolysis mechanism, two kinetic approaches were used for determination of kineticparameters: first, which involves using model-free methods and second, the use of iso-kinetic relationship analysis toidentify the low and high-temperature kinetic regimes during the chemical transformation of the investigated material.It was shown that iso-kinetic temperature (363.79 °C) represents a transition from the low-kinetic regime (enzymatichydrolysis) to the high-kinetic regime (acid hydrolysis), which strongly depends on temperature i.e. applied heatingrate. Significant compensation between kinetic parameters is a consequence of a change in the mechanism ofglucosides’ bond cleavage.
PB  - The Combustion Institute
C3  - 10th European Combustion Meeting : Proceedings
T1  - Identification of multiple-step nature of food waste pyrolysis by the model-free kinetic modeling and iso-kinetic relationship for value-added chemicals production
SP  - 508
EP  - 515
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12617
ER  - 

@conference{
author = "Manić, Nebojša and Janković, Bojan and Stojiljković, Dragoslava and Jovović, Aleksandar and Jovanović, Vladimir and Radojević, Miloš",
year = "2021",
abstract = "Food wastes are generated massively across global food supply chains. Conventional treatments of food waste (e.g.,landfilling and incineration) could cause environmental, economic and social problems. Valorization of food wasteinto value-added chemicals is a more sustainable and cost-effective option. This paper investigates the slow pyrolysisas an environmentally friendly and efficient way to thermo-chemically conversion of food waste into value-addedproducts. TGA-DTG study of slow pyrolysis of dried Goji berry pulp (GBP) samples was carried out at differentheating rates. To establish pyrolysis mechanism, two kinetic approaches were used for determination of kineticparameters: first, which involves using model-free methods and second, the use of iso-kinetic relationship analysis toidentify the low and high-temperature kinetic regimes during the chemical transformation of the investigated material.It was shown that iso-kinetic temperature (363.79 °C) represents a transition from the low-kinetic regime (enzymatichydrolysis) to the high-kinetic regime (acid hydrolysis), which strongly depends on temperature i.e. applied heatingrate. Significant compensation between kinetic parameters is a consequence of a change in the mechanism ofglucosides’ bond cleavage.",
publisher = "The Combustion Institute",
journal = "10th European Combustion Meeting : Proceedings",
title = "Identification of multiple-step nature of food waste pyrolysis by the model-free kinetic modeling and iso-kinetic relationship for value-added chemicals production",
pages = "508-515",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12617"
}

Manić, N., Janković, B., Stojiljković, D., Jovović, A., Jovanović, V.,& Radojević, M.. (2021). Identification of multiple-step nature of food waste pyrolysis by the model-free kinetic modeling and iso-kinetic relationship for value-added chemicals production. in 10th European Combustion Meeting : Proceedings
The Combustion Institute., 508-515.
https://hdl.handle.net/21.15107/rcub_vinar_12617

Manić N, Janković B, Stojiljković D, Jovović A, Jovanović V, Radojević M. Identification of multiple-step nature of food waste pyrolysis by the model-free kinetic modeling and iso-kinetic relationship for value-added chemicals production. in 10th European Combustion Meeting : Proceedings. 2021;:508-515.
https://hdl.handle.net/21.15107/rcub_vinar_12617 .

Manić, Nebojša, Janković, Bojan, Stojiljković, Dragoslava, Jovović, Aleksandar, Jovanović, Vladimir, Radojević, Miloš, "Identification of multiple-step nature of food waste pyrolysis by the model-free kinetic modeling and iso-kinetic relationship for value-added chemicals production" in 10th European Combustion Meeting : Proceedings (2021):508-515,
https://hdl.handle.net/21.15107/rcub_vinar_12617 .

TY  - JOUR
AU  - Manić, Nebojša
AU  - Janković, Bojan
AU  - Dodevski, Vladimir
AU  - Stojiljković, Dragoslava
AU  - Jovanović, Vladimir
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12629
AB  - Apricot kernel shells are naturally available source of biomass with potential for conversion to clean energy through a thermo-chemical process such as pyrolysis. To facilitate further process development, an advanced mathematical model which represents the process kinetics is developed and validated on the thermal decomposition studies using simultaneous thermal analysis, over a temperature range of 30-900 °C, at four heating rates of 5, 10, 15 and 20 °C min−1, under argon atmosphere. Model-free analysis and numerically developed methods were utilized for determination of effective activation energies, pre-exponential factors and the fractional contribution. A novel approach is introduced in order to determine actual pseudo-components of studied biomass that are included in its composition. The comparative study of the obtained kinetic results was also presented. The results obtained strongly indicated that the pseudo-component reaction modelling method could be employed to predict the experimental devolatilization rate and biomass composition with a high likelihood of success.
T2  - Journal of Sustainable Development of Energy, Water and Environment Systems
T1  - Multicomponent Modelling Kinetics and Simultaneous Thermal Analysis of Apricot Kernel Shell Pyrolysis
VL  - 8
IS  - 4
SP  - 766
EP  - 787
DO  - 10.13044/j.sdewes.d7.0307
ER  - 

@article{
author = "Manić, Nebojša and Janković, Bojan and Dodevski, Vladimir and Stojiljković, Dragoslava and Jovanović, Vladimir",
year = "2020",
abstract = "Apricot kernel shells are naturally available source of biomass with potential for conversion to clean energy through a thermo-chemical process such as pyrolysis. To facilitate further process development, an advanced mathematical model which represents the process kinetics is developed and validated on the thermal decomposition studies using simultaneous thermal analysis, over a temperature range of 30-900 °C, at four heating rates of 5, 10, 15 and 20 °C min−1, under argon atmosphere. Model-free analysis and numerically developed methods were utilized for determination of effective activation energies, pre-exponential factors and the fractional contribution. A novel approach is introduced in order to determine actual pseudo-components of studied biomass that are included in its composition. The comparative study of the obtained kinetic results was also presented. The results obtained strongly indicated that the pseudo-component reaction modelling method could be employed to predict the experimental devolatilization rate and biomass composition with a high likelihood of success.",
journal = "Journal of Sustainable Development of Energy, Water and Environment Systems",
title = "Multicomponent Modelling Kinetics and Simultaneous Thermal Analysis of Apricot Kernel Shell Pyrolysis",
volume = "8",
number = "4",
pages = "766-787",
doi = "10.13044/j.sdewes.d7.0307"
}

Manić, N., Janković, B., Dodevski, V., Stojiljković, D.,& Jovanović, V.. (2020). Multicomponent Modelling Kinetics and Simultaneous Thermal Analysis of Apricot Kernel Shell Pyrolysis. in Journal of Sustainable Development of Energy, Water and Environment Systems, 8(4), 766-787.
https://doi.org/10.13044/j.sdewes.d7.0307

Manić N, Janković B, Dodevski V, Stojiljković D, Jovanović V. Multicomponent Modelling Kinetics and Simultaneous Thermal Analysis of Apricot Kernel Shell Pyrolysis. in Journal of Sustainable Development of Energy, Water and Environment Systems. 2020;8(4):766-787.
doi:10.13044/j.sdewes.d7.0307 .

Manić, Nebojša, Janković, Bojan, Dodevski, Vladimir, Stojiljković, Dragoslava, Jovanović, Vladimir, "Multicomponent Modelling Kinetics and Simultaneous Thermal Analysis of Apricot Kernel Shell Pyrolysis" in Journal of Sustainable Development of Energy, Water and Environment Systems, 8, no. 4 (2020):766-787,
https://doi.org/10.13044/j.sdewes.d7.0307 . .

TY  - CONF
AU  - Manić, Nebojša
AU  - Janković, Bojan
AU  - Stojiljković, Dragoslava
AU  - Radojević, Miloš
AU  - Castels Somoza, Blanca
AU  - Medić, Ljiljana
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12627
AB  - Despite many advantages of the u tilization of biomass a s a r enewable energy source, certain bot t lenecks during biomass plant operation can be identified. Div ersity in space, periodicity of biomass collection and non-uniform material characteristics a r e issues r elated to decr easing efficiency of logistics and fu el manipulation which can a lso cause economic problems with biomass collection, transport, and storage. Since biomass is an especially reactive fuel, this has r a ised concerns ov er its safe handling and utilization. Fires, and sometimes explosions, are a risk du r ing all stages of fuel production a s well a s during handling and utilization of the product. This paper presents a nov el method for assessing ignition risk and prov ides a ranking of the relative r isk of ignition of biomass fu els. Tests within this method include physical and chemical properties of biomass, thermal analysis (TA) measurements, and the calculation procedure steps which were made using characteristic temperatures from thermogravimetry (TG) recordings. The TG r esults were used for the determination of the tangent slope of the mass loss rate curves in the dev olatilization zone at considered heating rates for all tested samples. Linear interpolation of the da ta obtained by tangent slope analysis and used heating rates may prov ide a unique straight line for ea ch sample in the ignition testing. TG index of spontaneous ignition (TG spi) is obtained for all samples based on a newly established formula. By v arying gradient of linear dependence of selfhea ting coefficient against reference temperatures (Tref,i), mass and heat transfer limitations for v arious biomasses were discussed. The proposed method is accurate as well as relatively simple and quick, enabling determination of data necessary for the design and application of appropriate measure store due fire and explosion hazards related to the operation of biomass.
PB  - SDEWES - International Centre for Sustainable Development of Energy, Water and Environment Systems
PB  - Zagreb : Faculty of Mechanical Engineering and Naval Architecture
C3  - 4th South East European Conference on Sustainable Development of Energy, Water and Environmental Systems : Book of abstracts
T1  - The Application of a Novel Methodology for the Determination of Biomass Spontaneous Ignition
SP  - 72
EP  - 72
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12627
ER  - 

@conference{
author = "Manić, Nebojša and Janković, Bojan and Stojiljković, Dragoslava and Radojević, Miloš and Castels Somoza, Blanca and Medić, Ljiljana",
year = "2020",
abstract = "Despite many advantages of the u tilization of biomass a s a r enewable energy source, certain bot t lenecks during biomass plant operation can be identified. Div ersity in space, periodicity of biomass collection and non-uniform material characteristics a r e issues r elated to decr easing efficiency of logistics and fu el manipulation which can a lso cause economic problems with biomass collection, transport, and storage. Since biomass is an especially reactive fuel, this has r a ised concerns ov er its safe handling and utilization. Fires, and sometimes explosions, are a risk du r ing all stages of fuel production a s well a s during handling and utilization of the product. This paper presents a nov el method for assessing ignition risk and prov ides a ranking of the relative r isk of ignition of biomass fu els. Tests within this method include physical and chemical properties of biomass, thermal analysis (TA) measurements, and the calculation procedure steps which were made using characteristic temperatures from thermogravimetry (TG) recordings. The TG r esults were used for the determination of the tangent slope of the mass loss rate curves in the dev olatilization zone at considered heating rates for all tested samples. Linear interpolation of the da ta obtained by tangent slope analysis and used heating rates may prov ide a unique straight line for ea ch sample in the ignition testing. TG index of spontaneous ignition (TG spi) is obtained for all samples based on a newly established formula. By v arying gradient of linear dependence of selfhea ting coefficient against reference temperatures (Tref,i), mass and heat transfer limitations for v arious biomasses were discussed. The proposed method is accurate as well as relatively simple and quick, enabling determination of data necessary for the design and application of appropriate measure store due fire and explosion hazards related to the operation of biomass.",
publisher = "SDEWES - International Centre for Sustainable Development of Energy, Water and Environment Systems, Zagreb : Faculty of Mechanical Engineering and Naval Architecture",
journal = "4th South East European Conference on Sustainable Development of Energy, Water and Environmental Systems : Book of abstracts",
title = "The Application of a Novel Methodology for the Determination of Biomass Spontaneous Ignition",
pages = "72-72",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12627"
}

Manić, N., Janković, B., Stojiljković, D., Radojević, M., Castels Somoza, B.,& Medić, L.. (2020). The Application of a Novel Methodology for the Determination of Biomass Spontaneous Ignition. in 4th South East European Conference on Sustainable Development of Energy, Water and Environmental Systems : Book of abstracts
SDEWES - International Centre for Sustainable Development of Energy, Water and Environment Systems., 72-72.
https://hdl.handle.net/21.15107/rcub_vinar_12627

Manić N, Janković B, Stojiljković D, Radojević M, Castels Somoza B, Medić L. The Application of a Novel Methodology for the Determination of Biomass Spontaneous Ignition. in 4th South East European Conference on Sustainable Development of Energy, Water and Environmental Systems : Book of abstracts. 2020;:72-72.
https://hdl.handle.net/21.15107/rcub_vinar_12627 .

Manić, Nebojša, Janković, Bojan, Stojiljković, Dragoslava, Radojević, Miloš, Castels Somoza, Blanca, Medić, Ljiljana, "The Application of a Novel Methodology for the Determination of Biomass Spontaneous Ignition" in 4th South East European Conference on Sustainable Development of Energy, Water and Environmental Systems : Book of abstracts (2020):72-72,
https://hdl.handle.net/21.15107/rcub_vinar_12627 .