Brat, Zagorka

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  • Brat, Zagorka (2)
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Author's Bibliography

Co-Pyrolysis Process of Coal and Waste: Synergistic Effect and Influence of Microscale Conditions

Brat, Zagorka; Janković, Bojan; Stojiljković, Dragoslava; Vujanović, Milan; Wang, Xuebin; Manić, Nebojša

(SDEWES - International Centre for Sustainable Development of Energy, Water and Environment Systems, 2023)

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 .

Assessment of synergistic effect on performing the co-pyrolysis process of coal and waste blends based on thermal analysis

Brat, Zagorka; Janković, Bojan Ž.; Stojiljković, Dragoslava; Radojević, Miloš; Manić, Nebojša G.

(2022)

TY  - JOUR
AU  - Brat, Zagorka
AU  - Janković, Bojan Ž.
AU  - Stojiljković, Dragoslava
AU  - Radojević, Miloš
AU  - Manić, Nebojša G.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10307
AB  - The preliminary thermogravimetric studies of co-pyrolyzed low rank coals (lignites Kostolac and Kolubara) with waste materials (spent coffee ground and waste rubber granulate) in a form of blends have been performed. Thermal analysis measurements of blend samples were carried out in a nitrogen, atmosphere at three different heating rates of 10, 15, and 20 K per minute. The coal-waste blends were prepared in the percentage ratios of 90:10, 80:20, and 70:30. This work analyzed the synergy analysis for considered blends shown via descriptive parameters during co-pyrolysis process. According to the performed analysis, the presence of synergistic effect was identified, where strong interactions were also observed. For lignite-spent coffee ground blends, it was found that two factors which affect the synergy effect with coal are concentration of added biomass material and the heating rate. For lignite-tire rubber granulate blends, the blending ratio take on a decisive role for positive consequences of a synergistic effect (ratios below 30% of tire rubber granulate in coals are desirable). Also, in this work the influence of micro-scale condition parameters such as heating rate (as the experimental regulatory factor) was analyzed on the magnitude response of synergism during co-pyrolysis.
T2  - Thermal Science
T1  - Assessment of synergistic effect on performing the co-pyrolysis process of coal and waste blends based on thermal analysis
VL  - 26
IS  - 3 Part A
SP  - 2211
EP  - 2224
DO  - 10.2298/TSCI210516310B
ER  - 
@article{
author = "Brat, Zagorka and Janković, Bojan Ž. and Stojiljković, Dragoslava and Radojević, Miloš and Manić, Nebojša G.",
year = "2022",
abstract = "The preliminary thermogravimetric studies of co-pyrolyzed low rank coals (lignites Kostolac and Kolubara) with waste materials (spent coffee ground and waste rubber granulate) in a form of blends have been performed. Thermal analysis measurements of blend samples were carried out in a nitrogen, atmosphere at three different heating rates of 10, 15, and 20 K per minute. The coal-waste blends were prepared in the percentage ratios of 90:10, 80:20, and 70:30. This work analyzed the synergy analysis for considered blends shown via descriptive parameters during co-pyrolysis process. According to the performed analysis, the presence of synergistic effect was identified, where strong interactions were also observed. For lignite-spent coffee ground blends, it was found that two factors which affect the synergy effect with coal are concentration of added biomass material and the heating rate. For lignite-tire rubber granulate blends, the blending ratio take on a decisive role for positive consequences of a synergistic effect (ratios below 30% of tire rubber granulate in coals are desirable). Also, in this work the influence of micro-scale condition parameters such as heating rate (as the experimental regulatory factor) was analyzed on the magnitude response of synergism during co-pyrolysis.",
journal = "Thermal Science",
title = "Assessment of synergistic effect on performing the co-pyrolysis process of coal and waste blends based on thermal analysis",
volume = "26",
number = "3 Part A",
pages = "2211-2224",
doi = "10.2298/TSCI210516310B"
}
Brat, Z., Janković, B. Ž., Stojiljković, D., Radojević, M.,& Manić, N. G.. (2022). Assessment of synergistic effect on performing the co-pyrolysis process of coal and waste blends based on thermal analysis. in Thermal Science, 26(3 Part A), 2211-2224.
https://doi.org/10.2298/TSCI210516310B
Brat Z, Janković BŽ, Stojiljković D, Radojević M, Manić NG. Assessment of synergistic effect on performing the co-pyrolysis process of coal and waste blends based on thermal analysis. in Thermal Science. 2022;26(3 Part A):2211-2224.
doi:10.2298/TSCI210516310B .
Brat, Zagorka, Janković, Bojan Ž., Stojiljković, Dragoslava, Radojević, Miloš, Manić, Nebojša G., "Assessment of synergistic effect on performing the co-pyrolysis process of coal and waste blends based on thermal analysis" in Thermal Science, 26, no. 3 Part A (2022):2211-2224,
https://doi.org/10.2298/TSCI210516310B . .
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