New kinetic model for thermal decomposition of heterogeneous materials

1995 ◽  
Vol 34 (3) ◽  
pp. 806-812 ◽  
Author(s):  
Jose A. Caballero ◽  
Rafael Font ◽  
Antonio Marcilla ◽  
Juan A. Conesa
Keyword(s):  
Thermal Decomposition ◽  
Kinetic Model ◽  
Heterogeneous Materials

Thermal Decomposition Kinetic Model of Phenolic Resin

2008 ◽  
Vol 24 (06) ◽  
pp. 1090-1094
Author(s):  
MA Wei ◽  
◽  
◽  
WANG Su ◽  
CUI Ji-Ping ◽  
...  
Keyword(s):  
Thermal Decomposition ◽  
Kinetic Model ◽  
Phenolic Resin ◽  
Decomposition Kinetic ◽  
Thermal Decomposition Kinetic

New mass loss kinetic model for thermal decomposition of biomass

2001 ◽  
Vol 46 (16) ◽  
pp. 1398-1402 ◽  
Author(s):  
Naian Liu ◽  
Weicheng Fan ◽  
R. Dobashi ◽  
Qizhao Lin
Keyword(s):  
Thermal Decomposition ◽  
Kinetic Model ◽  
Mass Loss ◽  
Loss Kinetic

Dicumyl Peroxide Thermal Decomposition in Cumene: Development of a Kinetic Model

2011 ◽  
Vol 51 (22) ◽  
pp. 7493-7499 ◽  
Author(s):  
Ilaria Di Somma ◽  
Raffaele Marotta ◽  
Roberto Andreozzi ◽  
Vincenzo Caprio
Keyword(s):  
Thermal Decomposition ◽  
Kinetic Model ◽  
Dicumyl Peroxide

scholarly journals A Case Study of Polyetheretherketone (II): Playing with Oxygen Concentration and Modeling Thermal Decomposition of a High-Performance Material

Polymers ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 1577
Author(s):  
Aditya Ramgobin ◽  
Gaëlle Fontaine ◽  
Serge Bourbigot
Keyword(s):  
Thermal Decomposition ◽  
Kinetic Model ◽  
High Performance ◽  
Chain Scission ◽  
Kinetic Decomposition ◽  
Decomposition Models ◽  
Set Up ◽  
Decomposition Pathway ◽  
Kinetics Of

Kinetic decomposition models for the thermal decomposition of a high-performance polymeric material (polyetheretherketone, PEEK) were determined from specific techniques. Experimental data from thermogravimetric analysis (TGA) and previously elucidated decomposition mechanisms were combined with a numerical simulating tool to establish a comprehensive kinetic model for the decomposition of PEEK under three atmospheres: nitrogen, 2% oxygen, and synthetic air. Multistepped kinetic models with subsequent and competitive reactions were established by taking into consideration the different types of reactions that may occur during the thermal decomposition of the material (chain scission, thermo-oxidation, char formation). The decomposition products and decomposition mechanism of PEEK which were established in our previous report allowed for the elucidation of the kinetic decomposition models. A three-stepped kinetic thermal decomposition pathway was a good fit to model the thermal decomposition of PEEK under nitrogen. The kinetic model involved an autocatalytic type of reaction followed by competitive and successive nth order reactions. Such types of models were set up for the evaluation of the kinetics of the thermal decomposition of PEEK under 2% oxygen and in air, leading to models with satisfactory fidelity.

A new kinetic model of calcite thermal decomposition

2013 ◽  
Vol 451 (2) ◽  
pp. 184-186 ◽  
Author(s):  
A. A. Matvienko ◽  
S. A. Chizhik ◽  
A. A. Sidel’nikov
Keyword(s):  
Thermal Decomposition ◽  
Kinetic Model

Modeling Thermal Decomposition Kinetic Algorithms on CL-20 and HMX

2010 ◽  
Vol 8 (1) ◽  
Author(s):  
Chun-Ping Lin ◽  
Jo-Ming Tseng ◽  
Mei-Li You ◽  
Yung-Chuan Chu ◽  
Chi-Min Shu
Keyword(s):  
Thermal Decomposition ◽  
Kinetic Model ◽  
Energy Parameter ◽  
Operating Conditions ◽  
Scanning Calorimetry ◽  
Kinetic Evaluation ◽  
Efficient Procedure ◽  
Selection Of ◽  
Thermal Decomposition Kinetic ◽  
Decomposition Properties

This study established a kinetic model of the thermal decomposition properties of hexanitrohexaazaisowurtzitane (CL-20) and cyclotetramethylene tetranitramine (HMX) using differential scanning calorimetry (DSC) and kinetic evaluation simulations. The goal was to analyze the thermokinetic parameters of CL-20 and HMX by DSC and then to compare thermal decomposition energy parameter simulations under various conditions using a kinetic model. The experimental results that were obtained depend strongly on the reliability of the applied kinetic model, which is essentially defined by the suitable selection of a mathematical model and the accuracy of the methods used in the kinetic evaluation. This study resulted in a quick and efficient procedure for obtaining information about the thermal decomposition characteristics and the reaction hazards of CL-20 and HMX. This procedure could be applied to develop inherently safer reaction designs under normal or extraordinary operating conditions.

scholarly journals Kinetic Study of Thermal De-Chlorination of PVC-Containing Waste

2012 ◽  
Vol 730-732 ◽  
pp. 611-616 ◽  
Author(s):  
Alexandra Castro ◽  
Cândida Vilarinho ◽  
Delfim Soares ◽  
Fernando Castro
Keyword(s):  
Activation Energy ◽  
Thermal Decomposition ◽  
Thermal Treatment ◽  
Kinetic Model ◽  
Energy Recovery ◽  
Order Reaction ◽  
Pyrolysis Process ◽  
First Order ◽  
Different Temperatures ◽  
The One

The presence of organic compounds on wastes, especially plastics, is considered an important source of energy. However, most of these plastics contain polyvinyl chloride (PVC), causing recycling problems when it is considered a thermal valorization process for its treatment [1], preventing the use of those residues on these processes, which main goal is the energy recovery [2,3]. A possible solution is to remove the chlorine from PVC containing waste through a pyrolysis process before being subjected to a thermal treatment, for energetic valorization. In this work, it was developed a kinetic model for the thermal decomposition of PVC, in view of its de-chlorination. DTA/TGA testing were performed at different temperatures (between the range of decomposition temperatures of the PVC molecule) indicated a first order reaction and an activation energy of 133800 J/mol, value very close to the one obtained in others works reported [4]. A factorial plan was carried out with different temperatures, performed in lab scale, in which best results were obtained at the temperature of 340 °C, proving the kinetic model obtained.

Apparent Autocatalysis Due to Liquefaction: Thermal Decomposition of Ammonium 3,4,5-Trinitropyrazolate

2021 ◽  
Author(s):  
Nikita V. Muravyev ◽  
Konstantin Alexandrovich Monogarov ◽  
Igor L. Dalinger ◽  
Nobuyoshi Koga ◽  
Alla N Pivkina
Keyword(s):  
Thermal Decomposition ◽  
Liquid Phase ◽  
Kinetic Model

Thermal decomposition of solids is often accompanied by autocatalysis, one of the possible causes of which is the formation of a liquid phase. The kinetic model considering the liquefaction of...

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