A New Method of Analyzing Thermogravimetric Data
TLDR
In this paper, a new method of obtaining the kinetic parameters from thermogravimetric curves has been proposed, which is simple and applicable to reactions which can not be analyzed by other methods.Abstract:
A new method of obtaining the kinetic parameters from thermogravimetric curves has been proposed. The method is simple and applicable to reactions which can not be analyzed by other methods. The effect of the heating rate on thermogravimetric curves has been elucidated, and the master curve of the experimental curves at different heating rates has been derived. The applications of the method to the pyrolyses of calcium oxalate and nylon 6 have been shown ; the results are in good agreement with the reported values. The applicability of the method to other types of thermal analyses has been discussed, and the method of the conversion of the data to other conditions of temperature change has been suggested. From these discussions, the definition of the thermal stability of materials has been criticized.read more
Citations
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Journal ArticleDOI
Study of melting and crystallization behavior of polyacrylonitrile using ultrafast differential scanning calorimetry
TL;DR: In this article, the thermal behavior of polyacrylonitrile (PAN) has been investigated using X-ray diffraction, differential scanning calorimetry (DSC), and ultrafast DSC.
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Kinetics and mechanism of the thermal decomposition of sodium percarbonate: role of the surface product layer.
Takeshi Wada,Nobuyoshi Koga +1 more
TL;DR: A relevant reaction model for the thermal decomposition of SPC crystals are discussed by focusing on the role of the surface product layer, Na2CO3, which is expected to have an autocatalytic rate behavior.
Book ChapterDOI
Chapter 13 - Isoconversional Kinetics
TL;DR: Isoconversional methods are an efficient compromise between the common single-step Arrhenius treatment and the predominantly encountered processes whose kinetics are multi-step and/or non-Arrhenian.
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Deactivation of US-Y zeolite by coke formation during the catalytic pyrolysis of high density polyethylene
TL;DR: In this paper, a relationship between catalytic pyrolysis of waste polymers over zeolitic catalysts has been found to fall exponentially with coke content, indicating that the catalytic activity of zeolite US-Y deactivates due to the deposition of coke.
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Studies on cracking of jatropha oil.
Shelly Biswas,Durlubh K. Sharma +1 more
TL;DR: In this article, the degradation of Jatropha oil was found to occur in three steps, i.e., the main devolatilization of JO occurs in the temperature region 623 −753 −K and the degradation is essentially complete in this zone.
References
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Journal ArticleDOI
Kinetic Parameters from Thermogravimetric Data
A. W. Coats,J. P. Redfern +1 more
TL;DR: In this article, a thermocouple is used to measure the sample temperature in a Stanton HT-D thermobalance, the bead of which is positioned in or near the sample, depending on crucible design.
Journal ArticleDOI
A New Analysis of Thermogravimetric Traces.
H. H. Horowitz,Gershon. Metzger +1 more
Journal ArticleDOI
The Application of Thermoanalytical Techniques to Reaction Kinetics: The Thermogravimetric Evaluation of the Kinetics of the Decomposition of Calcium Oxalate Monohydrate
Eli S. Freeman,Benjamin Carroll +1 more
Journal ArticleDOI
Kinetic analysis of thermogravimetric data
TL;DR: The kinetic analysis of the thermogram, by use of either its exact equation or a more convenient approximation formula, is straightforward in cases of volatilization via simple kinetics as mentioned in this paper.
Journal ArticleDOI
Estimating isothermal life from thermogravimetric data
TL;DR: In this paper, the authors presented a method for estimating equivalent isothermal life from thermogravimetric data and for estimating the apparent activation energy for volatilization even though the nature of the kinetic process is unknown.
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