ICTAC Kinetics Committee recommendations for performing kinetic computations on thermal analysis data

doi:10.1016/J.TCA.2011.03.034

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ICTAC Kinetics Committee recommendations for performing kinetic computations on thermal analysis data

Journal Article•DOI•

ICTAC Kinetics Committee recommendations for performing kinetic computations on thermal analysis data

Sergey Vyazovkin¹, Alan K. Burnham, José M. Criado², Luis A. Pérez-Maqueda², Crisan Popescu³, Nicolas Sbirrazzuoli⁴ - Show less +2 more•Institutions (4)

University of Alabama at Birmingham¹, Spanish National Research Council², RWTH Aachen University³, University of Nice Sophia Antipolis⁴

10 Jun 2011-Thermochimica Acta (Elsevier)-Vol. 520, Iss: 1, pp 1-19

TL;DR: In this article, the authors have developed recommendations for reliable evaluation of kinetic parameters (the activation energy, the preexponential factor, and the reaction model) from the data obtained by means of thermal analysis methods such as TGA, differential scanning calorimetry (DSC), and differential thermal analysis (DTA).

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About: This article is published in Thermochimica Acta.The article was published on 2011-06-10 and is currently open access. It has received 4112 citations till now.

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Journal Article•DOI•

Lignocellulosic biomass pyrolysis mechanism: A state-of-the-art review

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Shurong Wang¹, Gongxin Dai¹, Haiping Yang², Zhongyang Luo¹•Institutions (2)

Zhejiang University¹, Huazhong University of Science and Technology²

01 Sep 2017-Progress in Energy and Combustion Science

TL;DR: A broad review of the state-of-the-art biomass pyrolysis research can be found in this article, where three major components (cellulose, hemicellulose and lignin) are discussed in detail.

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1,613 citations

Journal Article•DOI•

A comprehensive review on the pyrolysis of lignocellulosic biomass

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Vaibhav Dhyani¹, Thallada Bhaskar², Thallada Bhaskar¹•Institutions (2)

Indian Institute of Petroleum¹, Academy of Scientific and Innovative Research²

18 Apr 2017-Renewable Energy

TL;DR: In this paper, pyrolysis of lignocellulosic biomass has been addressed, focusing primarily on the ideal feedstock, technologies, reactors, and properties of the end product.

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913 citations

Journal Article•DOI•

ICTAC Kinetics Committee recommendations for collecting experimental thermal analysis data for kinetic computations

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Sergey Vyazovkin¹, Konstantinos Chrissafis², Maria Laura Di Lorenzo³, Nobuyoshi Koga⁴, Michèle Pijolat⁵, Bertrand Roduit, Nicolas Sbirrazzuoli⁶, Joan Josep Suñol - Show less +4 more•Institutions (6)

University of Alabama at Birmingham¹, Aristotle University of Thessaloniki², Olivetti³, Hiroshima University⁴, École Normale Supérieure⁵, University of Nice Sophia Antipolis⁶

20 Aug 2014-Thermochimica Acta

TL;DR: In this paper, the authors present a set of recommendations for obtaining kinetic data that are adequate to the actual kinetics of various processes, including thermal decomposition of inorganic solids; thermal and thermo-oxidative degradation of polymers and organics; reactions of solids with gases; polymerization and crosslinking; crystallization of polymer and inorganics; hazardous processes.

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890 citations

Cites background or methods from "ICTAC Kinetics Committee recommenda..."

...18 provides an example of estimating the activation energy by applying a differential isoconversional method [1] to the a vs....
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...The use of efficient techniques [1] for performing kinetic computations does not guarantee obtaining good kinetic results....
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...model [1]), f(a) = a(1 a), and the following values of the reaction heat and kinetic parameters: DHr= 500 J g , A = 10 s , E = 100 kJ mol ....
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...described in the previous set of recommendations [1]....
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...The previous project by the ICTAC Kinetics Committee was focused on producing recommendations for performing efficient kinetic computations [1]....
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Journal Article•DOI•

A review on thermal and catalytic pyrolysis of plastic solid waste (PSW)

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Sultan Majed Al-Salem¹, Ana Antelava², Achilleas Constantinou³, George Manos³, Animesh Dutta⁴ - Show less +1 more•Institutions (4)

Kuwait Institute for Scientific Research¹, London South Bank University², University College London³, University of Guelph⁴

15 Jul 2017-Journal of Environmental Management

TL;DR: The existing techniques of pyrolysis, the parameters which affect the products yield and selectivity and the influence of different catalysts on the process are presented and major research gaps in this technology are identified.

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687 citations

Journal Article•DOI•

Determination of pyrolysis characteristics and kinetics of palm kernel shell using TGA–FTIR and model-free integral methods

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Zhongqing Ma, Dengyu Chen¹, Jie Gu¹, Binfu Bao, Qisheng Zhang¹ - Show less +1 more•Institutions (1)

Nanjing Forestry University¹

01 Jan 2015-Energy Conversion and Management

TL;DR: Based on TGA-FTIR analysis and model free integral kinetics method, the pyrolysis mechanism of PKS was elaborated in this article, where the activation energy dependent on the conversion rate was estimated by two model-free integral methods: Flynn-Wall-Ozawa (FWO) and Kissinger-Akahira-Sunose (KAS).

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513 citations

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References

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Journal Article•DOI•

Reaction Kinetics in Differential Thermal Analysis

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H. E. Kissinger

01 Nov 1957-Analytical Chemistry

10,842 citations

"ICTAC Kinetics Committee recommenda..." refers methods in this paper

...Because of its easy use the Kissinger method [34] has been applied for determining the activation energies more extensively than any other multiple-heating rate method....
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Journal Article•DOI•

A New Method of Analyzing Thermogravimetric Data

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Takeo Ozawa

01 Nov 1965-Bulletin of the Chemical Society of Japan

TL;DR: 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.

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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.

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5,622 citations

Journal Article•DOI•

Kinetics of thermal degradation of char-forming plastics from thermogravimetry. Application to a phenolic plastic

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Henry L. Friedman¹•Institutions (1)

Space Sciences Laboratory¹

07 Mar 2007-Journal of Polymer Science Part C: Polymer Symposia

TL;DR: In this article, a technique was devised for obtaining rate laws and kinetic parameters which describe the thermal degradation of plastics from TGA data, based on the inter-comparison of experiments which were performed at different linear rates of heating.

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Abstract: A technique was devised for obtaining rate laws and kinetic parameters which describe the thermal degradation of plastics from TGA data. The method is based on the inter-comparison of experiments which were performed at different linear rates of heating. By this method it is possible to determine the activation energy of certain professes without knowing the form of the kinetic equation. This technique was applied to fiberglass-reinforced CTL 91-LD phenolic resin, where the rate law - (1/we)(dw/dt) = 1018e−55,000/RT [(w - wf)/w0,]5, nr.−1, was found to apply to a major part of the degradation. The equation was successfully tested by several techniques, including a comparison with constant temperature data that were available in the literature. The activation energy was thought to be correct within 10 kcal.

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3,002 citations

Journal Article•DOI•

General treatment of the thermogravimetry of polymers

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Joseph H. Flynn¹, Leo A. Wall¹•Institutions (1)

National Institute of Standards and Technology¹

01 Nov 1966-Journal of Research of the National Bureau of Standards Section A: Physics and Chemistry

TL;DR: It is concluded that methods involving a variable rate of heating or involving several thermogravimetric traces at different rates of heating are capable of establishing the uniqueness of kinetic parameters.

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Abstract: Theoretical equations are developed for typical decompositions of polymers including those in which the volatilization does not follow a simple "reaction order" and those made up of a composite of several reactions of differing energies of activation. The effects of order, activation energy, heating rate and temperature dependence upon the calculated thermograms is illustrated. The literature on thermogravimetric kinetics is critically reviewed and coalesced into a logical and coherent development stressing the interrelation of methods and employing a consistent system of notation. As a result, a number of improved methods and new methods for the analysis of kinetic data applicable to the complex systems mentioned above are developed. It is concluded that methods involving a variable rate of heating or involving several thermogravimetric traces at different rates of heating are capable of establishing the uniqueness of kinetic parameters. A new method of determining initial parameters from rate-conversion data is developed. A novel concept is employed of programming reaction variables (in this case, the heating rate) in a manner which greatly simplifies the mathematics of the kinetic system and which shows promise of a wide range of applicability in the area of rate processes.

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1,644 citations

"ICTAC Kinetics Committee recommenda..." refers background in this paper

...7) takes the form also known as the Ozawa [19], and/or Flynn and Wall [20] equation:...
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Journal Article•DOI•

The determination of activation energy from linear heating rate experiments: a comparison of the accuracy of isoconversion methods

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Marco J. Starink¹•Institutions (1)

University of Southampton¹

04 Sep 2003-Thermochimica Acta

TL;DR: In this article, a classification of model-free isoconversion methods for the calculation of activation energies of thermally activated reactions is proposed, by deriving expressions for the main sources of error which includes the inaccuracy in reaction rate measurement, approximations for the temperature integral and inaccuracies in determination of temperature for equivalent fraction transformed.

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1,393 citations

"ICTAC Kinetics Committee recommenda..." refers background in this paper

...Many of these approximations give rise to linear equations of the general form [17]:...
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...This is especially importantwhen choosing betweennumerous integral model-fitting methods whose accuracy in evaluating lnAi and Ei depends largely on the accuracy of the approximation of the temperature integral [17,49,50]....
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...As shown by Starink [17], somewhat more accurate estimates of E ̨ are accomplished when setting B=1....
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..., DSC and DTA), significant inaccuracy in the rate values can be introduced due to the difficulty of determining the baseline [17]....
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