TY  - JOUR
AU  - Janković, Bojan Ž.
AU  - Kolar-Anić, Ljiljana
AU  - Smičiklas, Ivana D.
AU  - Dimović, Slavko
AU  - Arandelovic, Dragana
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3826
AB  - The non-isothermal combustion of animal bones was investigated by simultaneous thermogravimetric and differential thermal analysis (TG-DTA), in the temperature range Delta T = 20-650 degrees C. The full kinetic triplet (A, E(alpha) and f(alpha)) for the investigated process was established, using different calculation procedures: isoconversional (model-free) and the Kissingers methods. The non-isothermal process occured through three reaction stages (I, II and III). Stage I was described by a reaction model, which contains two competing reactions with different values of the apparent activation energy. The autocatalytic two-parameter Sestak-Berggren (SB) model (conversion function f(alpha) = alpha(0.62)(1-alpha)(3.22)). best described the second (II) reaction stage of bone samples. This stage, which corresponds to the degradation process of organic components (mainly collagen), exhibited the autocatalytic branching effect, with increasing complexity. Stage III, attributed to the combustion process of organic components, was best described by an n-th reaction order model with parameter n = 1.5 (f(alpha) = (1 - alpha()1.5). The appearance of compensation effect clearly showed the existence of three characteristic branches attributed to the dehydration, degradation and combustion processes, respectively, without noticable changes in mineral phase. The isothermal predictions of bone combustion process, at four different temperatures (T(iso) = 200, 300, 400 and 450 degrees C) were established in this paper. It was concluded that the shapes of the isothermal conversion curves at lower temperatures (200-300 degrees C) were similar, whereas became more complex with further temperature increase due to organic phase degradation. (C) 2009 Elsevier B.V. All rights reserved.
T2  - Thermochimica Acta
T1  - The non-isothermal thermogravimetric tests of animal bones combustion. Part. I. Kinetic analysis
VL  - 495
IS  - 1-2
SP  - 129
EP  - 138
DO  - 10.1016/j.tca.2009.06.016
ER  - 

@article{
author = "Janković, Bojan Ž. and Kolar-Anić, Ljiljana and Smičiklas, Ivana D. and Dimović, Slavko and Arandelovic, Dragana",
year = "2009",
abstract = "The non-isothermal combustion of animal bones was investigated by simultaneous thermogravimetric and differential thermal analysis (TG-DTA), in the temperature range Delta T = 20-650 degrees C. The full kinetic triplet (A, E(alpha) and f(alpha)) for the investigated process was established, using different calculation procedures: isoconversional (model-free) and the Kissingers methods. The non-isothermal process occured through three reaction stages (I, II and III). Stage I was described by a reaction model, which contains two competing reactions with different values of the apparent activation energy. The autocatalytic two-parameter Sestak-Berggren (SB) model (conversion function f(alpha) = alpha(0.62)(1-alpha)(3.22)). best described the second (II) reaction stage of bone samples. This stage, which corresponds to the degradation process of organic components (mainly collagen), exhibited the autocatalytic branching effect, with increasing complexity. Stage III, attributed to the combustion process of organic components, was best described by an n-th reaction order model with parameter n = 1.5 (f(alpha) = (1 - alpha()1.5). The appearance of compensation effect clearly showed the existence of three characteristic branches attributed to the dehydration, degradation and combustion processes, respectively, without noticable changes in mineral phase. The isothermal predictions of bone combustion process, at four different temperatures (T(iso) = 200, 300, 400 and 450 degrees C) were established in this paper. It was concluded that the shapes of the isothermal conversion curves at lower temperatures (200-300 degrees C) were similar, whereas became more complex with further temperature increase due to organic phase degradation. (C) 2009 Elsevier B.V. All rights reserved.",
journal = "Thermochimica Acta",
title = "The non-isothermal thermogravimetric tests of animal bones combustion. Part. I. Kinetic analysis",
volume = "495",
number = "1-2",
pages = "129-138",
doi = "10.1016/j.tca.2009.06.016"
}

Janković, B. Ž., Kolar-Anić, L., Smičiklas, I. D., Dimović, S.,& Arandelovic, D.. (2009). The non-isothermal thermogravimetric tests of animal bones combustion. Part. I. Kinetic analysis. in Thermochimica Acta, 495(1-2), 129-138.
https://doi.org/10.1016/j.tca.2009.06.016

Janković BŽ, Kolar-Anić L, Smičiklas ID, Dimović S, Arandelovic D. The non-isothermal thermogravimetric tests of animal bones combustion. Part. I. Kinetic analysis. in Thermochimica Acta. 2009;495(1-2):129-138.
doi:10.1016/j.tca.2009.06.016 .

Janković, Bojan Ž., Kolar-Anić, Ljiljana, Smičiklas, Ivana D., Dimović, Slavko, Arandelovic, Dragana, "The non-isothermal thermogravimetric tests of animal bones combustion. Part. I. Kinetic analysis" in Thermochimica Acta, 495, no. 1-2 (2009):129-138,
https://doi.org/10.1016/j.tca.2009.06.016 . .