Journal ArticleDOI
Rational approximations of the integral of the Arrhenius function
G. I. Senum,Ralph T. Yang +1 more
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TLDR
Rational approximations have been derived for the integral of the Arrhenius function dT which is important in the kinetic analysis of thermogravimetric data and is found to be equivalent to the Gorbachev approximation.Abstract:
Rational approximations have been derived for the integral of the Arrhenius function
$$\int\limits_0^T {\exp ( - E/RT)}$$
dT which is important in the kinetic analysis of thermogravimetric data. The first degree rational approximation is found to be equivalent to the Gorbachev approximation, i.e., RT2
exp (−E/RT)/(E+2RT). The second degree rational approximation is more accurate than the Zsako empirical approximation when E/RT 5. The third and higher degree rational approximations are found to be more accurate than any other previous approximation.read more
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Mineralogical characterization and non-isothermal pyrolysis kinetics of Moroccan Rif oil shale
Ely Cheikh Moine,Rajaa Bouamoud,Adnane El Hamidi,Mariam Khachani,Mohammed Halim,Said Arsalane +5 more
TL;DR: In this article, the pyrolysis reaction occurred by one-step kinetic process and the activation energies estimated by using isoconversional methods reveal that the reaction occurred in a single-step process.
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Thermal degradation behavior of a flame retardant melamine derivative hyperbranched polyimide with different terminal groups
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Kinetic and reactivity distribution behaviors during curing process of carbon/epoxy composite with thermoplastic interface coatings (T800/3900‐2 prepreg) under the nonisothermal conditions
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Isoconversional nonisothermal kinetic analysis of municipal solid waste, refuse‐derived fuel, and coal
Mudassar Azam,Mudassar Azam,Asma Ashraf,Asma Ashraf,Saman Setoodeh Jahromy,Waseem Raza,Hassan Khalid,Nadeem Raza,Franz Winter +8 more
TL;DR: The use of fossil fuel for energy production is posing many problems including global warming, reduction in fossil energy sources, and other related environmental issues as mentioned in this paper, and it is highly recommended to explore sustainable energy alternatives to address the issue of current energy crisis.
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Kinetic modelling for thermal decomposition of agricultural residues at different heating rates
Hemant Kumar Balsora,S. Kartik,Thomas J. Rainey,Ali Abbas,Jyeshtharaj B. Joshi,Abhishek Sharma,Anand G. Chakinala +6 more
TL;DR: In this article, the authors established the pyrolysis kinetics of agricultural biomass residues (mustard husk (MH), cotton stalk (CS), and groundnut shell (GNS) using thermogravimetric analysis (TGA).
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
Empirical formula for the exponential integral in non-isothermal kinetics
TL;DR: The exponential integral of the exponential integral can be approximated by means of the empirical formula, e.g. as mentioned in this paper, which approximates p(x) = - \int\limits_\infty ^x {\frac{{e^{ - u} }}{{u^2 }}} \cdot du\).
Journal ArticleDOI
Reaction kinetics and differential thermal analysis
Ralph T. Yang,Meyer Steinberg +1 more
TL;DR: In this paper, the relationship between chemical kinetics and differential thermal analysis (DTA) curves is studied for the reactions which follow the general rate expression: r = r/sub 0/e/sup -E/RT/(1 - x).