Non-isothermal kinetics: best-fitting empirical models instead of model-free methods
نویسندگان
چکیده
منابع مشابه
Model-Fitting Approach to Kinetic Analysis of Non-Isothermal Oxidation of Molybdenite
The kinetics of molybdenite oxidation was studied by non-isothermal TGA-DTA with heating rate 5 ºC.min-1.The model-fitting kinetic approach applied to TGA data .The Coats-Redfern method used for model fitting. The popular model-fitting gives excellent fit for non-isothermal data in chemically controlled regime. The apparent activation energy was determined to be about 34.2 kcalmo...
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a comparison was made between the experimental non-isothermal a vs. t curves and those calculated on the basis of a previous isothermal study. It was observed that for low heating rates, when the "thermal lag" is negligible, the dynamic measurements are in good agreement with the isothermal ones. Furthermore, for process (I), two mathematical methods proposed for the interpretation of the non-i...
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The majority of the works dealing with non-isothermal kinetics assumes only one kinetic differential equation, uses linearization techniques and do not check the fit between the simulated and the experimental data. It is not clear from the literature why we need kinetic evaluations at all in this field. Due to this controversial situation, the author has outlined his views on the aims and metho...
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ژورنال
عنوان ژورنال: Journal of Thermal Analysis and Calorimetry
سال: 2019
ISSN: 1388-6150,1588-2926
DOI: 10.1007/s10973-019-09162-z