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Kinetic analysis and chemical bond breakage of bagasse pyrolysis process
Author(s) -
Van Nam Huynh,
Viet Dinh Quoc,
Tam Truong Thanh,
Tho Van Dinh Son
Publication year - 2019
Publication title -
vietnam journal of chemistry
Language(s) - English
Resource type - Journals
eISSN - 2572-8288
pISSN - 0866-7144
DOI - 10.1002/vjch.201960016
Subject(s) - bagasse , hemicellulose , cellulose , thermogravimetric analysis , pyrolysis , lignin , activation energy , decomposition , breakage , dehydration , materials science , kinetics , order of reaction , thermal decomposition , atmospheric temperature range , chemistry , chemical engineering , organic chemistry , reaction rate constant , pulp and paper industry , thermodynamics , composite material , physics , quantum mechanics , engineering , biochemistry
In the present study, thermogravimetric analysis was used for investigation a bagasse pyrolysis. Multi‐period models were applied for evaluation of kinetics parameter based on the TG curve. The decomposition bagasse process was undergone four periods via the breakdown of each different chemical component in a sample. The dehydration occurred below 170°C; hemicellulose primarily and cellulose partially decomposed in a range of 170 to 318°C and cellulose continuously decomposed from 318 to 400°C. The temperature range of 400‐700°C for the last period showed the evidence of lignin decomposition. The study also identified activation energy constant ( E a ), the pre‐exponential factor ( A ) and reaction order ( n ) for each period of pyrolysis process. The dependence of the breakdown of the specific chemical bond on the pyrolysis temperature was also proven by FTIR spectrum analysis.