Determination of kinetic parameters of Phlomis bovei de Noé using thermogravimetric analysis.
This paper reports the pyrolysis study of Phlomis bovei biomass by thermogravimetric experiments in order to determine the thermal degradation behavior and kinetic parameters. The weight losses were found to occur in three stages. In the DTG thermograms, an increase of the heating rate tended to delay thermal degradation processes towards higher temperatures. The average values of activation energy and pre-exponential factor calculated from Ozawa-Flynn-Wall, Kissinger-Akahira-Sunose and Kissinger methods are 134.83, 134.06, 223.31kJ/mol and 4.1610(13), 1.1810(10), 2.8110(11)/s, respectively. The three-pseudo-component method shows that the activation energy increases with increasing the heating rate for hemicellulose and cellulose while the activation energy of the lignin decreased with an increase of the heating rate. Predicted results and experimental data exhibit similar tendencies and the three pseudo-components model with n different from unity 1 is recommended as the most suitable for prediction of kinetic behavior of Phlomis bovei de Noé.
Laboratoire de recherche sur les produits bioactifs et valorisation de la biomasse, Ecole Normale Supérieure (ENS) de Kouba, BP 92 Algiers, Algeria.
Meriem
M
Yahiaoui
Division des techniques nucléaires (DTN), Centre de Recherche Nucléaire d'Alger (CRNA), BP 399 Algiers, Algeria. Electronic address: hhadoun@hotmail.com.
Hocine
H
Hadoun
Division des techniques nucléaires (DTN), Centre de Recherche Nucléaire d'Alger (CRNA), BP 399 Algiers, Algeria.
Idir
I
Toumert
Laboratoire de recherche sur les produits bioactifs et valorisation de la biomasse, Ecole Normale Supérieure (ENS) de Kouba, BP 92 Algiers, Algeria.
Aicha
A
Hassani
D018533:Biomass; D002482:Cellulose / Q000737:chemistry; D006358:Hot Temperature; D007700:Kinetics; D008031:Lignin / Q000737:chemistry; D008962:Models, Theoretical; D031345:Phlomis / Q000737:chemistry*; D011134:Polysaccharides / Q000737:chemistry; D013818:Thermogravimetry / Q000379:methods*
D011134:Polysaccharides; C007916:hemicellulose; D002482:Cellulose; D008031:Lignin
Biomass; Kinetic parameters; Phlomis bovei de Noé; Pyrolysis; Thermo-gravimetric analysis