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Thermal characteristics of bagasse
Author(s) -
Nassar Mamdouh M.,
Ashour Eman A.,
Wahid Seddik S.
Publication year - 1996
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19960808)61:6<885::aid-app1>3.0.co;2-d
Subject(s) - bagasse , thermogravimetry , activation energy , combustion , pyrolysis , materials science , volatilisation , gibbs free energy , thermal analysis , thermogravimetric analysis , chemical engineering , waste management , chemistry , thermal , thermodynamics , pulp and paper industry , organic chemistry , inorganic chemistry , physics , engineering
Bagasse is a solid waste that remains after crushing sugarcane. Since bagasse is used as a fuel in sugar mills, characterization of its thermal degradation is rather important in order to use it efficiently. Thermal analysis of bagasse was carried out using differential thermal analysis (DTA) and thermogravimetry (TG) under oxidizing and inert atmospheres. Kinetic studies were based on weight loss obtained from TG analysis. Thermal degradation of bagasse takes place in two stages: volatilization and carbonization. The reaction rate, activation energy, entropy change, enthalpy change, and Gibbs free energy for the two thermal stages were calculated. The results indicated that activation energy for the volatilization stage is higher than that of decarbonization stage, and that both the rate constant and activation energy for combustion are higher than those of pyrolysis. © 1996 John Wiley & Sons, Inc.