TY  - CONF
AU  - Manić, Nebojša
AU  - Stojiljković, Dragoslava
AU  - Radojević, Miloš
AU  - Bešenić, Tibor
AU  - Vujanović, Milan
AU  - Wang, Xuebin
AU  - Janković, Bojan
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7239
AB  - The fuel-NOx emissions during the conversion of carbon-based feedstock into energy and
chemicals are on a global level in focus last decades due to environmental issues. The emission
of nitrogen oxides is recognized among the other pollutants, as one of the key environmental
problems related to energy production by various types of feedstocks. In this paper,
the effect of fuel-based nitrogen delivery on the development of NOx precursors (HCN and
NH3) during the devolatilization process of properly selected samples (coal, sawdust, wheat
straw, and ground coffee waste) has been examined. TG-DTG thermal analysis techniques,
coupled with mass spectrometry (MS) were used for the assessment of nitrogen distribution
for HCN and NH3 gases, as intermediate species during feedstocks devolatilization, which
directly influences the NOx emission during thermochemical conversion processes (pyrolysis
and combustion). The mass balance of nitrogen together with performed EGA (evolved
gas analysis), and the distribution of nitrogen between volatiles and formed char were also
determined. The obtained data for investigated samples could be exploited for further thermochemical
process optimization, in regard to NOx emissions. The presented results could
be used as the experimentally determined input parameters for the mathematical modeling
of indicated processes, and with further analysis can be transferred to large-scale industrial
plant applications.
PB  - Budapest : Akadémiai Kiadó
C3  - JTACC 2023 Book of Abstracts
T1  - Nitrogen distribution analysis during the devolatilization process of various feedstocks using TG-DTG-MS analysis
SP  - 372
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7239
ER  - 

@conference{
author = "Manić, Nebojša and Stojiljković, Dragoslava and Radojević, Miloš and Bešenić, Tibor and Vujanović, Milan and Wang, Xuebin and Janković, Bojan",
year = "2023",
abstract = "The fuel-NOx emissions during the conversion of carbon-based feedstock into energy and
chemicals are on a global level in focus last decades due to environmental issues. The emission
of nitrogen oxides is recognized among the other pollutants, as one of the key environmental
problems related to energy production by various types of feedstocks. In this paper,
the effect of fuel-based nitrogen delivery on the development of NOx precursors (HCN and
NH3) during the devolatilization process of properly selected samples (coal, sawdust, wheat
straw, and ground coffee waste) has been examined. TG-DTG thermal analysis techniques,
coupled with mass spectrometry (MS) were used for the assessment of nitrogen distribution
for HCN and NH3 gases, as intermediate species during feedstocks devolatilization, which
directly influences the NOx emission during thermochemical conversion processes (pyrolysis
and combustion). The mass balance of nitrogen together with performed EGA (evolved
gas analysis), and the distribution of nitrogen between volatiles and formed char were also
determined. The obtained data for investigated samples could be exploited for further thermochemical
process optimization, in regard to NOx emissions. The presented results could
be used as the experimentally determined input parameters for the mathematical modeling
of indicated processes, and with further analysis can be transferred to large-scale industrial
plant applications.",
publisher = "Budapest : Akadémiai Kiadó",
journal = "JTACC 2023 Book of Abstracts",
title = "Nitrogen distribution analysis during the devolatilization process of various feedstocks using TG-DTG-MS analysis",
pages = "372",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7239"
}

Manić, N., Stojiljković, D., Radojević, M., Bešenić, T., Vujanović, M., Wang, X.,& Janković, B.. (2023). Nitrogen distribution analysis during the devolatilization process of various feedstocks using TG-DTG-MS analysis. in JTACC 2023 Book of Abstracts
Budapest : Akadémiai Kiadó., 372.
https://hdl.handle.net/21.15107/rcub_machinery_7239

Manić N, Stojiljković D, Radojević M, Bešenić T, Vujanović M, Wang X, Janković B. Nitrogen distribution analysis during the devolatilization process of various feedstocks using TG-DTG-MS analysis. in JTACC 2023 Book of Abstracts. 2023;:372.
https://hdl.handle.net/21.15107/rcub_machinery_7239 .

Manić, Nebojša, Stojiljković, Dragoslava, Radojević, Miloš, Bešenić, Tibor, Vujanović, Milan, Wang, Xuebin, Janković, Bojan, "Nitrogen distribution analysis during the devolatilization process of various feedstocks using TG-DTG-MS analysis" in JTACC 2023 Book of Abstracts (2023):372,
https://hdl.handle.net/21.15107/rcub_machinery_7239 .

TY  - JOUR
AU  - Zhang, Jiaye
AU  - Chen, Chongming
AU  - Zhou, Ao
AU  - Rahman, Zia Ur
AU  - Wang, Xuebin
AU  - Stojiljković, Dragoslava
AU  - Manić, Nebojša
AU  - Vujanović, Milan
AU  - Tan, Houzhang
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3752
AB  - A pressurized drop tube furnace was used to study the pyrolysis behavior of bituminous and lignite coal at elevated pressure. Experiments were conducted at the pressure range from 1 to 10 atm in 100% N-2 or 100% CO2 atmosphere. The volatile yields, char morphology, swelling ratio, and pore structure were discussed in detail. The results show that the pressure, atmosphere and coal rank could effect on the volatile releasing and char evolution significantly. In N-2 atmosphere, the total volatile yields of YL and NM coal decrease as the pressure elevated, while in CO2 atmosphere, the mass release of NM coal increases at high pressure contributed by the reaction of CO2 with organic macromolecule inside the particles; different with bituminous coal, no significant swelling behavior is found with the increase of pressure; the BET surface area of YL char decreases as the pressure increases, while for lignite coal, in N-2 atmosphere and at high pressure, less macro pores are formed, which could contribute to the BET surface area. While in CO2 atmosphere, the CO2-macromocular organic reaction would promote the volatile releasing, and the BET surface area decreases significantly at high pressure.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Energy
T1  - Morphology of char particles from coal pyrolysis in a pressurized entrained flow reactor: Effects of pressure and atmosphere
VL  - 238
DO  - 10.1016/j.energy.2021.121846
ER  - 

@article{
author = "Zhang, Jiaye and Chen, Chongming and Zhou, Ao and Rahman, Zia Ur and Wang, Xuebin and Stojiljković, Dragoslava and Manić, Nebojša and Vujanović, Milan and Tan, Houzhang",
year = "2022",
abstract = "A pressurized drop tube furnace was used to study the pyrolysis behavior of bituminous and lignite coal at elevated pressure. Experiments were conducted at the pressure range from 1 to 10 atm in 100% N-2 or 100% CO2 atmosphere. The volatile yields, char morphology, swelling ratio, and pore structure were discussed in detail. The results show that the pressure, atmosphere and coal rank could effect on the volatile releasing and char evolution significantly. In N-2 atmosphere, the total volatile yields of YL and NM coal decrease as the pressure elevated, while in CO2 atmosphere, the mass release of NM coal increases at high pressure contributed by the reaction of CO2 with organic macromolecule inside the particles; different with bituminous coal, no significant swelling behavior is found with the increase of pressure; the BET surface area of YL char decreases as the pressure increases, while for lignite coal, in N-2 atmosphere and at high pressure, less macro pores are formed, which could contribute to the BET surface area. While in CO2 atmosphere, the CO2-macromocular organic reaction would promote the volatile releasing, and the BET surface area decreases significantly at high pressure.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Energy",
title = "Morphology of char particles from coal pyrolysis in a pressurized entrained flow reactor: Effects of pressure and atmosphere",
volume = "238",
doi = "10.1016/j.energy.2021.121846"
}

Zhang, J., Chen, C., Zhou, A., Rahman, Z. U., Wang, X., Stojiljković, D., Manić, N., Vujanović, M.,& Tan, H.. (2022). Morphology of char particles from coal pyrolysis in a pressurized entrained flow reactor: Effects of pressure and atmosphere. in Energy
Pergamon-Elsevier Science Ltd, Oxford., 238.
https://doi.org/10.1016/j.energy.2021.121846

Zhang J, Chen C, Zhou A, Rahman ZU, Wang X, Stojiljković D, Manić N, Vujanović M, Tan H. Morphology of char particles from coal pyrolysis in a pressurized entrained flow reactor: Effects of pressure and atmosphere. in Energy. 2022;238.
doi:10.1016/j.energy.2021.121846 .

Zhang, Jiaye, Chen, Chongming, Zhou, Ao, Rahman, Zia Ur, Wang, Xuebin, Stojiljković, Dragoslava, Manić, Nebojša, Vujanović, Milan, Tan, Houzhang, "Morphology of char particles from coal pyrolysis in a pressurized entrained flow reactor: Effects of pressure and atmosphere" in Energy, 238 (2022),
https://doi.org/10.1016/j.energy.2021.121846 . .

TY  - JOUR
AU  - Stancin, H.
AU  - Mikulcić, H.
AU  - Manić, Nebojša
AU  - Stojiljković, Dragoslava
AU  - Vujanović, M.
AU  - Wang, Xuebin
AU  - Duić, N.
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3494
AB  - Alternative fuels are crucial for the decarbonisation of high-energy demanding processes. The utilisation of waste materials to produce alternative fuels is especially interesting since, the co-pyrolysis of waste plastics and biomass was lately introduced as promising method since the synergistic effect might enhance the product properties compared to those from individual pyrolysis. Furthermore, the utilisation of waste biomass, like sawdust, is interesting since it does not influence the sustainability of biomass consumption, and even more, it avoids the usage of raw feedstock. Thermogravimetric analysis is per -formed to determine the thermal degradation behaviour and kinetic parameters of investigated mixtures to find the most appropriate utilisation method. Co-pyrolysis was conducted for three mixtures with the following biomass/polyurethane ratios: 75-25%, 50-50%, 25-75%, over a temperature range of 30-800 degrees C, at three heating rates 5,10 and 20 degrees C/min, under an inert atmosphere. Obtained results were subjected to comprehensive kinetic analysis to determine effective activation energy using the iso-conversional model-free methods and provide a detailed analysis of the samples' thermal degradation process. This work aimed to identify the main thermal decomposition stages during co-pyrolysis of biomass and polyurethane mixtures and provide the mixture composition's influence on the considered thermochemical conversion process.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Energy
T1  - Thermogravimetric and kinetic analysis of biomass and polyurethane foam mixtures Co-Pyrolysis
VL  - 237
DO  - 10.1016/j.energy.2021.121592
ER  - 

@article{
author = "Stancin, H. and Mikulcić, H. and Manić, Nebojša and Stojiljković, Dragoslava and Vujanović, M. and Wang, Xuebin and Duić, N.",
year = "2021",
abstract = "Alternative fuels are crucial for the decarbonisation of high-energy demanding processes. The utilisation of waste materials to produce alternative fuels is especially interesting since, the co-pyrolysis of waste plastics and biomass was lately introduced as promising method since the synergistic effect might enhance the product properties compared to those from individual pyrolysis. Furthermore, the utilisation of waste biomass, like sawdust, is interesting since it does not influence the sustainability of biomass consumption, and even more, it avoids the usage of raw feedstock. Thermogravimetric analysis is per -formed to determine the thermal degradation behaviour and kinetic parameters of investigated mixtures to find the most appropriate utilisation method. Co-pyrolysis was conducted for three mixtures with the following biomass/polyurethane ratios: 75-25%, 50-50%, 25-75%, over a temperature range of 30-800 degrees C, at three heating rates 5,10 and 20 degrees C/min, under an inert atmosphere. Obtained results were subjected to comprehensive kinetic analysis to determine effective activation energy using the iso-conversional model-free methods and provide a detailed analysis of the samples' thermal degradation process. This work aimed to identify the main thermal decomposition stages during co-pyrolysis of biomass and polyurethane mixtures and provide the mixture composition's influence on the considered thermochemical conversion process.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Energy",
title = "Thermogravimetric and kinetic analysis of biomass and polyurethane foam mixtures Co-Pyrolysis",
volume = "237",
doi = "10.1016/j.energy.2021.121592"
}

Stancin, H., Mikulcić, H., Manić, N., Stojiljković, D., Vujanović, M., Wang, X.,& Duić, N.. (2021). Thermogravimetric and kinetic analysis of biomass and polyurethane foam mixtures Co-Pyrolysis. in Energy
Pergamon-Elsevier Science Ltd, Oxford., 237.
https://doi.org/10.1016/j.energy.2021.121592

Stancin H, Mikulcić H, Manić N, Stojiljković D, Vujanović M, Wang X, Duić N. Thermogravimetric and kinetic analysis of biomass and polyurethane foam mixtures Co-Pyrolysis. in Energy. 2021;237.
doi:10.1016/j.energy.2021.121592 .

Stancin, H., Mikulcić, H., Manić, Nebojša, Stojiljković, Dragoslava, Vujanović, M., Wang, Xuebin, Duić, N., "Thermogravimetric and kinetic analysis of biomass and polyurethane foam mixtures Co-Pyrolysis" in Energy, 237 (2021),
https://doi.org/10.1016/j.energy.2021.121592 . .