Model-free and model-based kinetics of the combustion process of low rank coals with high ash contents using TGA-DTG-DTA-MS and FTIR techniques
Abstract
Thermal and kinetics behaviors of the low-rank coals from different annual periods (Kolubara (2015)/(2018) and TENT A (2015)/(2018)) during combustion process in air atmosphere, using simultaneous TGA-DTG-DTA-MS measurements were investigated. The FTIR spectroscopy was used to gain additional information on coals structures. Kolubara and TENT A coals from (2015)/(2018) annual periods show differences in reactivity, where the reason for this demeanor lies in differences in decomposition kinetics of these coals. The conclusions made on the basis of model-based analysis clearly indicate that differences in combustion reaction pathways (especially in transitions from primary to secondary combustion stages) arise from continual changes in physical structure of the coals. It was found that the mineral matter significantly influences on the reactivity of coal during combustion, where this is particularly pronounced for TENT A coal particles.
Keywords:
Model-based analysis / Mineral matter / Low-ranking coals / CO2 emission coefficient / Air combustionSource:
Thermochimica Acta, 2019, 679Publisher:
- Elsevier, Amsterdam
Funding / projects:
- Dynamics of nonlinear physicochemical and biochemical systems with modeling and predicting of their behavior under nonequilibrium conditions (RS-MESTD-Basic Research (BR or ON)-172015)
- Pollution Reduction from Thermal Power Plants of the Public Enterprise “Electric Power Industry of Serbia” (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-42010)
- Predefined functional properties polymer composite materials processes and equipment development (RS-MESTD-Technological Development (TD or TR)-34011)
- Advanced technologies for monitoring and environmental protection from chemical pollutants and radiation burden (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-43009)
DOI: 10.1016/j.tca.2019.178337
ISSN: 0040-6031
WoS: 000487175900012
Scopus: 2-s2.0-85069656312
Collections
Institution/Community
Mašinski fakultetTY - JOUR AU - Janković, Bojan AU - Manić, Nebojša AU - Radović, Ivana AU - Janković, Marija AU - Rajacić, Milica PY - 2019 UR - https://machinery.mas.bg.ac.rs/handle/123456789/3024 AB - Thermal and kinetics behaviors of the low-rank coals from different annual periods (Kolubara (2015)/(2018) and TENT A (2015)/(2018)) during combustion process in air atmosphere, using simultaneous TGA-DTG-DTA-MS measurements were investigated. The FTIR spectroscopy was used to gain additional information on coals structures. Kolubara and TENT A coals from (2015)/(2018) annual periods show differences in reactivity, where the reason for this demeanor lies in differences in decomposition kinetics of these coals. The conclusions made on the basis of model-based analysis clearly indicate that differences in combustion reaction pathways (especially in transitions from primary to secondary combustion stages) arise from continual changes in physical structure of the coals. It was found that the mineral matter significantly influences on the reactivity of coal during combustion, where this is particularly pronounced for TENT A coal particles. PB - Elsevier, Amsterdam T2 - Thermochimica Acta T1 - Model-free and model-based kinetics of the combustion process of low rank coals with high ash contents using TGA-DTG-DTA-MS and FTIR techniques VL - 679 DO - 10.1016/j.tca.2019.178337 ER -
@article{ author = "Janković, Bojan and Manić, Nebojša and Radović, Ivana and Janković, Marija and Rajacić, Milica", year = "2019", abstract = "Thermal and kinetics behaviors of the low-rank coals from different annual periods (Kolubara (2015)/(2018) and TENT A (2015)/(2018)) during combustion process in air atmosphere, using simultaneous TGA-DTG-DTA-MS measurements were investigated. The FTIR spectroscopy was used to gain additional information on coals structures. Kolubara and TENT A coals from (2015)/(2018) annual periods show differences in reactivity, where the reason for this demeanor lies in differences in decomposition kinetics of these coals. The conclusions made on the basis of model-based analysis clearly indicate that differences in combustion reaction pathways (especially in transitions from primary to secondary combustion stages) arise from continual changes in physical structure of the coals. It was found that the mineral matter significantly influences on the reactivity of coal during combustion, where this is particularly pronounced for TENT A coal particles.", publisher = "Elsevier, Amsterdam", journal = "Thermochimica Acta", title = "Model-free and model-based kinetics of the combustion process of low rank coals with high ash contents using TGA-DTG-DTA-MS and FTIR techniques", volume = "679", doi = "10.1016/j.tca.2019.178337" }
Janković, B., Manić, N., Radović, I., Janković, M.,& Rajacić, M.. (2019). Model-free and model-based kinetics of the combustion process of low rank coals with high ash contents using TGA-DTG-DTA-MS and FTIR techniques. in Thermochimica Acta Elsevier, Amsterdam., 679. https://doi.org/10.1016/j.tca.2019.178337
Janković B, Manić N, Radović I, Janković M, Rajacić M. Model-free and model-based kinetics of the combustion process of low rank coals with high ash contents using TGA-DTG-DTA-MS and FTIR techniques. in Thermochimica Acta. 2019;679. doi:10.1016/j.tca.2019.178337 .
Janković, Bojan, Manić, Nebojša, Radović, Ivana, Janković, Marija, Rajacić, Milica, "Model-free and model-based kinetics of the combustion process of low rank coals with high ash contents using TGA-DTG-DTA-MS and FTIR techniques" in Thermochimica Acta, 679 (2019), https://doi.org/10.1016/j.tca.2019.178337 . .