TY  - JOUR
AU  - Manić, Nebojša
AU  - Janković, Bojan
AU  - Pijović, Milena
AU  - Waisi, Hadi
AU  - Dodevski, Vladimir
AU  - Stojiljković, Dragoslava
AU  - Jovanović, Vladimir
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3420
AB  - In order to clarify relationship between apricot kernel shell biomass slow pyrolysis mechanism and its main constituents (viz. hemicelluloses, cellulose and lignin), the reactivity effects of main constituents on pyrolysis characteristics were determined by the non-isothermal simultaneous thermal analysis. It was found that four-step (parallel) reaction model is suitable for studying the slow pyrolysis process, within the semi-global model which excludes the strong interaction between biomass constituents (pseudo-components). The application of the proposed model was allowed by the results obtained from KAS iterative isoconversional (model-free) approach. The valorization of the model was confirmed by the process optimization. The complex (cumulative) apricot kernel shell pyrolysis rate curves at different heating rates are successfully resolved into the individual decomposition rate curves (arising from thermal conversion of hemicelluloses, cellulose, and primary/secondary lignin fragments) by four-parameter Fraser-Suzuki function. Besides hemicelluloses and cellulose pyrolyses, the proposed model distinguishes primary and secondary lignin reactions, which enhance the gaseous products releasing (primarily CO and CO(2)gases) and charification of the solid residue (increased the bio-char yield).
PB  - Springer, Dordrecht
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Apricot kernel shells pyrolysis controlled by non-isothermal simultaneous thermal analysis (STA)
EP  - 579
IS  - 2
SP  - 565
VL  - 142
DO  - 10.1007/s10973-020-09307-5
ER  - 

@article{
author = "Manić, Nebojša and Janković, Bojan and Pijović, Milena and Waisi, Hadi and Dodevski, Vladimir and Stojiljković, Dragoslava and Jovanović, Vladimir",
year = "2020",
abstract = "In order to clarify relationship between apricot kernel shell biomass slow pyrolysis mechanism and its main constituents (viz. hemicelluloses, cellulose and lignin), the reactivity effects of main constituents on pyrolysis characteristics were determined by the non-isothermal simultaneous thermal analysis. It was found that four-step (parallel) reaction model is suitable for studying the slow pyrolysis process, within the semi-global model which excludes the strong interaction between biomass constituents (pseudo-components). The application of the proposed model was allowed by the results obtained from KAS iterative isoconversional (model-free) approach. The valorization of the model was confirmed by the process optimization. The complex (cumulative) apricot kernel shell pyrolysis rate curves at different heating rates are successfully resolved into the individual decomposition rate curves (arising from thermal conversion of hemicelluloses, cellulose, and primary/secondary lignin fragments) by four-parameter Fraser-Suzuki function. Besides hemicelluloses and cellulose pyrolyses, the proposed model distinguishes primary and secondary lignin reactions, which enhance the gaseous products releasing (primarily CO and CO(2)gases) and charification of the solid residue (increased the bio-char yield).",
publisher = "Springer, Dordrecht",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Apricot kernel shells pyrolysis controlled by non-isothermal simultaneous thermal analysis (STA)",
pages = "579-565",
number = "2",
volume = "142",
doi = "10.1007/s10973-020-09307-5"
}

Manić, N., Janković, B., Pijović, M., Waisi, H., Dodevski, V., Stojiljković, D.,& Jovanović, V.. (2020). Apricot kernel shells pyrolysis controlled by non-isothermal simultaneous thermal analysis (STA). in Journal of Thermal Analysis and Calorimetry
Springer, Dordrecht., 142(2), 565-579.
https://doi.org/10.1007/s10973-020-09307-5

Manić N, Janković B, Pijović M, Waisi H, Dodevski V, Stojiljković D, Jovanović V. Apricot kernel shells pyrolysis controlled by non-isothermal simultaneous thermal analysis (STA). in Journal of Thermal Analysis and Calorimetry. 2020;142(2):565-579.
doi:10.1007/s10973-020-09307-5 .

Manić, Nebojša, Janković, Bojan, Pijović, Milena, Waisi, Hadi, Dodevski, Vladimir, Stojiljković, Dragoslava, Jovanović, Vladimir, "Apricot kernel shells pyrolysis controlled by non-isothermal simultaneous thermal analysis (STA)" in Journal of Thermal Analysis and Calorimetry, 142, no. 2 (2020):565-579,
https://doi.org/10.1007/s10973-020-09307-5 . .

TY  - JOUR
AU  - Janković, Bojan
AU  - Manić, Nebojša
AU  - Dodevski, Vladimir
AU  - Radojević, Miloš
AU  - Stojiljković, Dragoslava
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3353
AB  - The combustion reactivity of plane tree seeds biomass feedstock was studied using the thermogravimetry. The effects of atmosphere (O-2/Ar) and different oxygen concentrations (O-2/Ar = 20:80% and O-2/Ar = 50:50%) on the combustion characteristics were investigated. When combustion atmosphere changes from O-2/Ar = 50:50% to O-2/Ar = 20:80% (reducing oxygen concentrations), the burnout temperature increases by 29.50 degrees C for tested biomass. Obtained results demonstrate the ease of ignition of investigated lignocellulosic material for O-2/Ar = 50:50% ratio compared with O-2/Ar = 20:80% ratio, and the actual trend is maintained under the condition when the heating rate increases. The reducing of oxygen concentration strongly influenced the amount of final residue products, particularly at higher heating rates (beyond 10 degrees C min(-1)). Kinetic analysis applied to investigated process shows strongly dependencies of both the apparent activation energy (E) and pre-exponential factor (logA) with conversion (alpha), especially in devolatilization and combustion of volatiles reaction stages. Large variation inEis attributed to existence of multiple parallel reactions. In order to solve this problem, the deconvolution technique that uses Fraser-Suzuki function was applied. It was shown that Fraser-Suzuki function fits successfully kinetic rate curves of entire combustion process, assuming the best selectednth-order reaction model.
PB  - Springer, Dordrecht
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Kinetic study of oxy-combustion of plane tree (Platanus orientalis) seeds (PTS) in O-2/Ar atmosphere
EP  - 976
IS  - 2
SP  - 953
VL  - 142
DO  - 10.1007/s10973-019-09154-z
ER  - 

@article{
author = "Janković, Bojan and Manić, Nebojša and Dodevski, Vladimir and Radojević, Miloš and Stojiljković, Dragoslava",
year = "2020",
abstract = "The combustion reactivity of plane tree seeds biomass feedstock was studied using the thermogravimetry. The effects of atmosphere (O-2/Ar) and different oxygen concentrations (O-2/Ar = 20:80% and O-2/Ar = 50:50%) on the combustion characteristics were investigated. When combustion atmosphere changes from O-2/Ar = 50:50% to O-2/Ar = 20:80% (reducing oxygen concentrations), the burnout temperature increases by 29.50 degrees C for tested biomass. Obtained results demonstrate the ease of ignition of investigated lignocellulosic material for O-2/Ar = 50:50% ratio compared with O-2/Ar = 20:80% ratio, and the actual trend is maintained under the condition when the heating rate increases. The reducing of oxygen concentration strongly influenced the amount of final residue products, particularly at higher heating rates (beyond 10 degrees C min(-1)). Kinetic analysis applied to investigated process shows strongly dependencies of both the apparent activation energy (E) and pre-exponential factor (logA) with conversion (alpha), especially in devolatilization and combustion of volatiles reaction stages. Large variation inEis attributed to existence of multiple parallel reactions. In order to solve this problem, the deconvolution technique that uses Fraser-Suzuki function was applied. It was shown that Fraser-Suzuki function fits successfully kinetic rate curves of entire combustion process, assuming the best selectednth-order reaction model.",
publisher = "Springer, Dordrecht",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Kinetic study of oxy-combustion of plane tree (Platanus orientalis) seeds (PTS) in O-2/Ar atmosphere",
pages = "976-953",
number = "2",
volume = "142",
doi = "10.1007/s10973-019-09154-z"
}

Janković, B., Manić, N., Dodevski, V., Radojević, M.,& Stojiljković, D.. (2020). Kinetic study of oxy-combustion of plane tree (Platanus orientalis) seeds (PTS) in O-2/Ar atmosphere. in Journal of Thermal Analysis and Calorimetry
Springer, Dordrecht., 142(2), 953-976.
https://doi.org/10.1007/s10973-019-09154-z

Janković B, Manić N, Dodevski V, Radojević M, Stojiljković D. Kinetic study of oxy-combustion of plane tree (Platanus orientalis) seeds (PTS) in O-2/Ar atmosphere. in Journal of Thermal Analysis and Calorimetry. 2020;142(2):953-976.
doi:10.1007/s10973-019-09154-z .

Janković, Bojan, Manić, Nebojša, Dodevski, Vladimir, Radojević, Miloš, Stojiljković, Dragoslava, "Kinetic study of oxy-combustion of plane tree (Platanus orientalis) seeds (PTS) in O-2/Ar atmosphere" in Journal of Thermal Analysis and Calorimetry, 142, no. 2 (2020):953-976,
https://doi.org/10.1007/s10973-019-09154-z . .

TY  - JOUR
AU  - Manić, Nebojša
AU  - Janković, Bojan
AU  - Dodevski, Vladimir
AU  - Stojiljković, Dragoslava
AU  - Jovanović, Vladimir
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3341
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 degrees C, at four heating rates of 5, 10, 15 and 20 degrees 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.
PB  - Int Centre Sustainable Dev Energy Water & Env Systems-Sdewes, Zagreb
T2  - Journal of Sustainable Development of Energy Water and Environment Systems-Jsdewes
T1  - Multicomponent Modelling Kinetics and Simultaneous Thermal Analysis of Apricot Kernel Shell Pyrolysis
EP  - 787
IS  - 4
SP  - 766
VL  - 8
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 degrees C, at four heating rates of 5, 10, 15 and 20 degrees 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.",
publisher = "Int Centre Sustainable Dev Energy Water & Env Systems-Sdewes, Zagreb",
journal = "Journal of Sustainable Development of Energy Water and Environment Systems-Jsdewes",
title = "Multicomponent Modelling Kinetics and Simultaneous Thermal Analysis of Apricot Kernel Shell Pyrolysis",
pages = "787-766",
number = "4",
volume = "8",
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-Jsdewes
Int Centre Sustainable Dev Energy Water & Env Systems-Sdewes, Zagreb., 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-Jsdewes. 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-Jsdewes, 8, no. 4 (2020):766-787,
https://doi.org/10.13044/j.sdewes.d7.0307 . .

TY  - CONF
AU  - Manić, Nebojša
AU  - Janković, Bojan
AU  - Dodevski, Vladimir
AU  - Stojiljković, Dragoslava
AU  - Jovanović, Vladimir
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3318
AB  - As waste biomass from fruit processing industry, apricot kernel shells have a potential for conversion to renewable energy through a thermo-chemical process such as pyrolysis. However, due to major differences of biomass characteristics as the well-known issue, it is extremely important to perform detailed analysis of biomass samples from the same type (or same species) but from different geographical regions. Regarding full characterization of considered biomass material and to facilitate further process development, in this paper, the advanced mathematical model for kinetic analysis was used. All performed kinetic modeling represents the process kinetics developed and validated on thermal decomposition studies using simultaneous thermogravimetric analysis (TGA) - differential thermal analysis (DTA) - mass spectrometry (MS) scanning, at four heating rates of 5, 10, 15 and 20 degrees C min(-1), over temperature range 30-900 degrees C and under an argon (Ar) atmosphere. Model-free analysis for base prediction of decomposition process and deconvolution approach by Fraser-Suzuki functions were utilized for determination of effective activation energies (E), pre-exponential factors (A) and fractional contributions (u), as well as for separation of overlapping reactions. Comparative study of kinetic results with emission analysis of evolved gas species was also implemented in order to determine the more comprehensive pyrolysis kinetics model. Obtained results strongly indicated that the Fraser-Suzuki deconvolution provides excellent quality of fits with experimental ones, and could be employed to predict devolatilization rates with a high probability. From energy compensation effect properties, it was revealed the existence of unconventional thermal lag due to heat demand by chemical reaction.
PB  - Springer International Publishing Ag, Cham
C3  - Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019
T1  - The Pyrolysis of Waste Biomass Investigated by Simultaneous TGA-DTA-MS Measurements and Kinetic Modeling with Deconvolution Functions
EP  - 60
SP  - 39
VL  - 90
DO  - 10.1007/978-3-030-30853-7_3
ER  - 

@conference{
author = "Manić, Nebojša and Janković, Bojan and Dodevski, Vladimir and Stojiljković, Dragoslava and Jovanović, Vladimir",
year = "2020",
abstract = "As waste biomass from fruit processing industry, apricot kernel shells have a potential for conversion to renewable energy through a thermo-chemical process such as pyrolysis. However, due to major differences of biomass characteristics as the well-known issue, it is extremely important to perform detailed analysis of biomass samples from the same type (or same species) but from different geographical regions. Regarding full characterization of considered biomass material and to facilitate further process development, in this paper, the advanced mathematical model for kinetic analysis was used. All performed kinetic modeling represents the process kinetics developed and validated on thermal decomposition studies using simultaneous thermogravimetric analysis (TGA) - differential thermal analysis (DTA) - mass spectrometry (MS) scanning, at four heating rates of 5, 10, 15 and 20 degrees C min(-1), over temperature range 30-900 degrees C and under an argon (Ar) atmosphere. Model-free analysis for base prediction of decomposition process and deconvolution approach by Fraser-Suzuki functions were utilized for determination of effective activation energies (E), pre-exponential factors (A) and fractional contributions (u), as well as for separation of overlapping reactions. Comparative study of kinetic results with emission analysis of evolved gas species was also implemented in order to determine the more comprehensive pyrolysis kinetics model. Obtained results strongly indicated that the Fraser-Suzuki deconvolution provides excellent quality of fits with experimental ones, and could be employed to predict devolatilization rates with a high probability. From energy compensation effect properties, it was revealed the existence of unconventional thermal lag due to heat demand by chemical reaction.",
publisher = "Springer International Publishing Ag, Cham",
journal = "Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019",
title = "The Pyrolysis of Waste Biomass Investigated by Simultaneous TGA-DTA-MS Measurements and Kinetic Modeling with Deconvolution Functions",
pages = "60-39",
volume = "90",
doi = "10.1007/978-3-030-30853-7_3"
}

Manić, N., Janković, B., Dodevski, V., Stojiljković, D.,& Jovanović, V.. (2020). The Pyrolysis of Waste Biomass Investigated by Simultaneous TGA-DTA-MS Measurements and Kinetic Modeling with Deconvolution Functions. in Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019
Springer International Publishing Ag, Cham., 90, 39-60.
https://doi.org/10.1007/978-3-030-30853-7_3

Manić N, Janković B, Dodevski V, Stojiljković D, Jovanović V. The Pyrolysis of Waste Biomass Investigated by Simultaneous TGA-DTA-MS Measurements and Kinetic Modeling with Deconvolution Functions. in Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019. 2020;90:39-60.
doi:10.1007/978-3-030-30853-7_3 .

Manić, Nebojša, Janković, Bojan, Dodevski, Vladimir, Stojiljković, Dragoslava, Jovanović, Vladimir, "The Pyrolysis of Waste Biomass Investigated by Simultaneous TGA-DTA-MS Measurements and Kinetic Modeling with Deconvolution Functions" in Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019, 90 (2020):39-60,
https://doi.org/10.1007/978-3-030-30853-7_3 . .

TY  - JOUR
AU  - Janović, Nataša
AU  - Ćoćić, Aleksandar
AU  - Stamenić, Mirjana
AU  - Janović, Aleksa
AU  - Djurić, Marija
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3379
AB  - Objectives The objective of this study was to investigate the relationship between side asymmetry in nasal resistance (NR) and severity of the nasal airway obstruction (NAO) in patients with different types of nasal septal deformity (NSD). Design Computational fluid dynamics (CFD) study. Setting The study was conducted in a tertiary medical centre. Participants The study included 232 patients, who were referred to the CT examination of the paranasal sinuses. Exclusion criteria were sinonasal and respiratory diseases that may interfere with the nasal obstruction. The presence and the type of NSD were recorded according to the Mladina's classification. Main outcome measures The presence and severity of NAO in each patient were assessed by NOSE questionnaire. Eight computational models of the nasal cavity were created from CT scans. Models represented seven Mladina's NSD types and a straight septum of a symptomless patient. CFD calculated airflow partitioning and NR for each nasal passage. Side differences in NR were calculated by the equation increment NR = NRleft - NRright. The relationship between NOSE scores, airflow partitioning and side differences in NR was explored using Spearman's correlation analysis. Results Mladina's types of NSD showed differences in airflow partitioning and the degree of side asymmetry in NR. A significant positive correlation was detected between side differences in NR and NOSE scores (R = .762, P = .028). A significant negative correlation was found between the per cent of unilateral airflow and NR (R = -.524, P = .037). Conclusions Our results demonstrated that side asymmetry in NR could explain differences in NAO severity related to the NSD type.
PB  - Wiley, Hoboken
T2  - Clinical Otolaryngology
T1  - Side asymmetry in nasal resistance correlate with nasal obstruction severity in patients with septal deformities: Computational fluid dynamics study
EP  - 724
IS  - 5
SP  - 718
VL  - 45
DO  - 10.1111/coa.13563
ER  - 

@article{
author = "Janović, Nataša and Ćoćić, Aleksandar and Stamenić, Mirjana and Janović, Aleksa and Djurić, Marija",
year = "2020",
abstract = "Objectives The objective of this study was to investigate the relationship between side asymmetry in nasal resistance (NR) and severity of the nasal airway obstruction (NAO) in patients with different types of nasal septal deformity (NSD). Design Computational fluid dynamics (CFD) study. Setting The study was conducted in a tertiary medical centre. Participants The study included 232 patients, who were referred to the CT examination of the paranasal sinuses. Exclusion criteria were sinonasal and respiratory diseases that may interfere with the nasal obstruction. The presence and the type of NSD were recorded according to the Mladina's classification. Main outcome measures The presence and severity of NAO in each patient were assessed by NOSE questionnaire. Eight computational models of the nasal cavity were created from CT scans. Models represented seven Mladina's NSD types and a straight septum of a symptomless patient. CFD calculated airflow partitioning and NR for each nasal passage. Side differences in NR were calculated by the equation increment NR = NRleft - NRright. The relationship between NOSE scores, airflow partitioning and side differences in NR was explored using Spearman's correlation analysis. Results Mladina's types of NSD showed differences in airflow partitioning and the degree of side asymmetry in NR. A significant positive correlation was detected between side differences in NR and NOSE scores (R = .762, P = .028). A significant negative correlation was found between the per cent of unilateral airflow and NR (R = -.524, P = .037). Conclusions Our results demonstrated that side asymmetry in NR could explain differences in NAO severity related to the NSD type.",
publisher = "Wiley, Hoboken",
journal = "Clinical Otolaryngology",
title = "Side asymmetry in nasal resistance correlate with nasal obstruction severity in patients with septal deformities: Computational fluid dynamics study",
pages = "724-718",
number = "5",
volume = "45",
doi = "10.1111/coa.13563"
}

Janović, N., Ćoćić, A., Stamenić, M., Janović, A.,& Djurić, M.. (2020). Side asymmetry in nasal resistance correlate with nasal obstruction severity in patients with septal deformities: Computational fluid dynamics study. in Clinical Otolaryngology
Wiley, Hoboken., 45(5), 718-724.
https://doi.org/10.1111/coa.13563

Janović N, Ćoćić A, Stamenić M, Janović A, Djurić M. Side asymmetry in nasal resistance correlate with nasal obstruction severity in patients with septal deformities: Computational fluid dynamics study. in Clinical Otolaryngology. 2020;45(5):718-724.
doi:10.1111/coa.13563 .

Janović, Nataša, Ćoćić, Aleksandar, Stamenić, Mirjana, Janović, Aleksa, Djurić, Marija, "Side asymmetry in nasal resistance correlate with nasal obstruction severity in patients with septal deformities: Computational fluid dynamics study" in Clinical Otolaryngology, 45, no. 5 (2020):718-724,
https://doi.org/10.1111/coa.13563 . .

TY  - JOUR
AU  - Janković, Bojan
AU  - Manić, Nebojša
AU  - Dodevski, Vladimir
AU  - Radović, Ivana
AU  - Pijović, Milena
AU  - Katnić, Djurica
AU  - Tasić, Gvozden
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3000
AB  - This paper investigates the ability of waste apricot (Prunus armeniaca) kernel shells (AKS) bio-char prepared by single-step carbonization process at 850 degrees C (residence time of 1 h) for possible removal of toxic elements and organic micro-pollutants. The experiment that was performed as well as parameters used proved to be optimal for bio-char production as adsorbing medium, where last issue is validated by multiform material characterization techniques. It has been shown that the produced bio-char possess highly-porous morphology features, with large specific surface area (328.570 m(2) g(-1)). The obtained product was characterized by various pore sizes (including super-micropores and mesopores with maximum pore size of 2.24 nm) structures. Preliminary results are indicated that obtained bio-char can shows increased affinity to possible adsorption of the small organic molecule contaminants upgraded by its physico-chemical properties. Cost estimation of AKS bio-char production substantiated its cost effectiveness and its good physical and chemical properties for future design in batch adsorption and regeneration tests. It was established that AKS produced bio-char was 2.5 times cheaper than the commercially available activated carbon. Bio-char exhibits promising removal performances for potential adsorption of heavy metal and organic micro-pollutants from wastewaters systems, as indicated by material textures and spectroscopy measurements.
PB  - Elsevier Sci Ltd, Oxford
T2  - Journal of Cleaner Production
T1  - Physico-chemical characterization of carbonized apricot kernel shell as precursor for activated carbon preparation in clean technology utilization
VL  - 236
DO  - 10.1016/j.jclepro.2019.117614
ER  - 

@article{
author = "Janković, Bojan and Manić, Nebojša and Dodevski, Vladimir and Radović, Ivana and Pijović, Milena and Katnić, Djurica and Tasić, Gvozden",
year = "2019",
abstract = "This paper investigates the ability of waste apricot (Prunus armeniaca) kernel shells (AKS) bio-char prepared by single-step carbonization process at 850 degrees C (residence time of 1 h) for possible removal of toxic elements and organic micro-pollutants. The experiment that was performed as well as parameters used proved to be optimal for bio-char production as adsorbing medium, where last issue is validated by multiform material characterization techniques. It has been shown that the produced bio-char possess highly-porous morphology features, with large specific surface area (328.570 m(2) g(-1)). The obtained product was characterized by various pore sizes (including super-micropores and mesopores with maximum pore size of 2.24 nm) structures. Preliminary results are indicated that obtained bio-char can shows increased affinity to possible adsorption of the small organic molecule contaminants upgraded by its physico-chemical properties. Cost estimation of AKS bio-char production substantiated its cost effectiveness and its good physical and chemical properties for future design in batch adsorption and regeneration tests. It was established that AKS produced bio-char was 2.5 times cheaper than the commercially available activated carbon. Bio-char exhibits promising removal performances for potential adsorption of heavy metal and organic micro-pollutants from wastewaters systems, as indicated by material textures and spectroscopy measurements.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Journal of Cleaner Production",
title = "Physico-chemical characterization of carbonized apricot kernel shell as precursor for activated carbon preparation in clean technology utilization",
volume = "236",
doi = "10.1016/j.jclepro.2019.117614"
}

Janković, B., Manić, N., Dodevski, V., Radović, I., Pijović, M., Katnić, D.,& Tasić, G.. (2019). Physico-chemical characterization of carbonized apricot kernel shell as precursor for activated carbon preparation in clean technology utilization. in Journal of Cleaner Production
Elsevier Sci Ltd, Oxford., 236.
https://doi.org/10.1016/j.jclepro.2019.117614

Janković B, Manić N, Dodevski V, Radović I, Pijović M, Katnić D, Tasić G. Physico-chemical characterization of carbonized apricot kernel shell as precursor for activated carbon preparation in clean technology utilization. in Journal of Cleaner Production. 2019;236.
doi:10.1016/j.jclepro.2019.117614 .

Janković, Bojan, Manić, Nebojša, Dodevski, Vladimir, Radović, Ivana, Pijović, Milena, Katnić, Djurica, Tasić, Gvozden, "Physico-chemical characterization of carbonized apricot kernel shell as precursor for activated carbon preparation in clean technology utilization" in Journal of Cleaner Production, 236 (2019),
https://doi.org/10.1016/j.jclepro.2019.117614 . .

TY  - JOUR
AU  - Janković, Bojan
AU  - Manić, Nebojša
AU  - Dodevski, Vladimir
AU  - Popović, Jasmina
AU  - Rusmirović, Jelena D.
AU  - Tosić, Miloš
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3099
AB  - This paper describes the pyrolysis of Poplar fluff (from Populus alba) using on-line apparatus, and carbonization process at 850 degrees C using the fixed bed reactor. Characteristics of pyrolysis products were examined. Elemental and chemical analyses were shown that Poplar fluff has higher energy content characterized by increased content of fibrous structure (particularly cellulose). Independent parallel reactions model very well describes devolatilization process. It was found that increased amount of extractives can significantly affect on increased release of light gaseous products, but declining hydrocarbons, mostly the alkanes. Liquid product is mainly composed of phenolics, aldehydes, acids, esters and ketones. The carbonization process produces the great abundance of polycyclic aromatic hydrocarbons (PAH's), where naphthalene is the most abundant. Mechanism for PAH's formation was suggested. This study represents the first step in a much wider and more comprehensive way in thermal conversion processes of this type of fuel.
PB  - Elsevier Sci Ltd, Oxford
T2  - Fuel
T1  - Characterization analysis of Poplar fluff pyrolysis products. Multi-component kinetic study
EP  - 128
SP  - 111
VL  - 238
DO  - 10.1016/j.fuel.2018.10.064
ER  - 

@article{
author = "Janković, Bojan and Manić, Nebojša and Dodevski, Vladimir and Popović, Jasmina and Rusmirović, Jelena D. and Tosić, Miloš",
year = "2019",
abstract = "This paper describes the pyrolysis of Poplar fluff (from Populus alba) using on-line apparatus, and carbonization process at 850 degrees C using the fixed bed reactor. Characteristics of pyrolysis products were examined. Elemental and chemical analyses were shown that Poplar fluff has higher energy content characterized by increased content of fibrous structure (particularly cellulose). Independent parallel reactions model very well describes devolatilization process. It was found that increased amount of extractives can significantly affect on increased release of light gaseous products, but declining hydrocarbons, mostly the alkanes. Liquid product is mainly composed of phenolics, aldehydes, acids, esters and ketones. The carbonization process produces the great abundance of polycyclic aromatic hydrocarbons (PAH's), where naphthalene is the most abundant. Mechanism for PAH's formation was suggested. This study represents the first step in a much wider and more comprehensive way in thermal conversion processes of this type of fuel.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Fuel",
title = "Characterization analysis of Poplar fluff pyrolysis products. Multi-component kinetic study",
pages = "128-111",
volume = "238",
doi = "10.1016/j.fuel.2018.10.064"
}

Janković, B., Manić, N., Dodevski, V., Popović, J., Rusmirović, J. D.,& Tosić, M.. (2019). Characterization analysis of Poplar fluff pyrolysis products. Multi-component kinetic study. in Fuel
Elsevier Sci Ltd, Oxford., 238, 111-128.
https://doi.org/10.1016/j.fuel.2018.10.064

Janković B, Manić N, Dodevski V, Popović J, Rusmirović JD, Tosić M. Characterization analysis of Poplar fluff pyrolysis products. Multi-component kinetic study. in Fuel. 2019;238:111-128.
doi:10.1016/j.fuel.2018.10.064 .

Janković, Bojan, Manić, Nebojša, Dodevski, Vladimir, Popović, Jasmina, Rusmirović, Jelena D., Tosić, Miloš, "Characterization analysis of Poplar fluff pyrolysis products. Multi-component kinetic study" in Fuel, 238 (2019):111-128,
https://doi.org/10.1016/j.fuel.2018.10.064 . .

TY  - JOUR
AU  - Janićijević, Milovan
AU  - Srećković, Milesa
AU  - Kaluđerović, Branka
AU  - Dinulović, Mirko
AU  - Karastojković, Zoran
AU  - Jovanić, Predrag
AU  - Kovačević, Zorica
PY  - 2015
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2141
AB  - U ovom radu se analizira interakcija laserskih snopova sa ugljeničnim materijalom (staklasti ugljenik). Korišćen je Nd3+:YAG lasera (1.06 μm, odnosno bliska IC oblast) u ms režimu rada sa snopovima različitih gustina energije. U svim eksperimentima, u primenjenom režimu rada, uočene su površinske povrede na uzorku. Povrede nastale dejstvom lasera su analizirane optičkim i SEM mikroskopima. Program Image J je korišćen za kvantitativnu analizu nastalih povreda na osnovu mikrografa dobijenih optičkom i SEM mikroskopijom. Temperaturna raspodela u izloženom uzorku je dobijena numeričkom simulacijom zasnovanom na programskom paketu COMSOL Multiphysics 3.5 u ograničenom opsegu energija.
AB  - Laser beam interaction with carbon based material (glassy carbon) is analyzed in this paper. A Nd3+:YAG laser beam (1.06 μm, i.e., near infrared range (NIR)) in ms regime with various energy densities is used. In all experiments, provided in applied working regimes, surface damages have occurred. The results of laser damages are analyzed by light and scanning electron microscopy (SEM). Image J software is used for quantitative analysis of generated damages based on micrographs obtained by light and SEM microscopes. Temperature distribution in the exposed samples is evaluated by numerical simulations based on COMSOL Multiphysics 3.5 software in a limited energy range.
PB  - Savez hemijskih inženjera, Beograd
T2  - Chemical Industry & Chemical Engineering Quarterly
T1  - Procena interakcije laserskog snopa sa materijalom na bazi ugljenika - staklastim ugljenikom
T1  - Evaluation of laser beam interaction with carbon based material: Glassy carbon
EP  - 69
IS  - 1
SP  - 63
VL  - 21
DO  - 10.2298/CICEQ140131006J
ER  - 

@article{
author = "Janićijević, Milovan and Srećković, Milesa and Kaluđerović, Branka and Dinulović, Mirko and Karastojković, Zoran and Jovanić, Predrag and Kovačević, Zorica",
year = "2015",
abstract = "U ovom radu se analizira interakcija laserskih snopova sa ugljeničnim materijalom (staklasti ugljenik). Korišćen je Nd3+:YAG lasera (1.06 μm, odnosno bliska IC oblast) u ms režimu rada sa snopovima različitih gustina energije. U svim eksperimentima, u primenjenom režimu rada, uočene su površinske povrede na uzorku. Povrede nastale dejstvom lasera su analizirane optičkim i SEM mikroskopima. Program Image J je korišćen za kvantitativnu analizu nastalih povreda na osnovu mikrografa dobijenih optičkom i SEM mikroskopijom. Temperaturna raspodela u izloženom uzorku je dobijena numeričkom simulacijom zasnovanom na programskom paketu COMSOL Multiphysics 3.5 u ograničenom opsegu energija., Laser beam interaction with carbon based material (glassy carbon) is analyzed in this paper. A Nd3+:YAG laser beam (1.06 μm, i.e., near infrared range (NIR)) in ms regime with various energy densities is used. In all experiments, provided in applied working regimes, surface damages have occurred. The results of laser damages are analyzed by light and scanning electron microscopy (SEM). Image J software is used for quantitative analysis of generated damages based on micrographs obtained by light and SEM microscopes. Temperature distribution in the exposed samples is evaluated by numerical simulations based on COMSOL Multiphysics 3.5 software in a limited energy range.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Chemical Industry & Chemical Engineering Quarterly",
title = "Procena interakcije laserskog snopa sa materijalom na bazi ugljenika - staklastim ugljenikom, Evaluation of laser beam interaction with carbon based material: Glassy carbon",
pages = "69-63",
number = "1",
volume = "21",
doi = "10.2298/CICEQ140131006J"
}

Janićijević, M., Srećković, M., Kaluđerović, B., Dinulović, M., Karastojković, Z., Jovanić, P.,& Kovačević, Z.. (2015). Procena interakcije laserskog snopa sa materijalom na bazi ugljenika - staklastim ugljenikom. in Chemical Industry & Chemical Engineering Quarterly
Savez hemijskih inženjera, Beograd., 21(1), 63-69.
https://doi.org/10.2298/CICEQ140131006J

Janićijević M, Srećković M, Kaluđerović B, Dinulović M, Karastojković Z, Jovanić P, Kovačević Z. Procena interakcije laserskog snopa sa materijalom na bazi ugljenika - staklastim ugljenikom. in Chemical Industry & Chemical Engineering Quarterly. 2015;21(1):63-69.
doi:10.2298/CICEQ140131006J .

Janićijević, Milovan, Srećković, Milesa, Kaluđerović, Branka, Dinulović, Mirko, Karastojković, Zoran, Jovanić, Predrag, Kovačević, Zorica, "Procena interakcije laserskog snopa sa materijalom na bazi ugljenika - staklastim ugljenikom" in Chemical Industry & Chemical Engineering Quarterly, 21, no. 1 (2015):63-69,
https://doi.org/10.2298/CICEQ140131006J . .