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Determination of Kinetic Parameters of Thermal Degradation of Palm Oil Mill by Products Using Thermogravimetric Analysis and Differential Scanning Calorimetry
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org
Citation: Paper number 066156, 2006 ASAE Annual Meeting . @2006
Authors: J. A. Garcia-Nunez, M. Garcia-Perez, K.C. Das
Keywords: Oil palm biomass, pyrolysis, thermal analysis, TG, DSC, empty fruit bunches (EFB), oil palm fiber, oil palm shell
Empty fruit bunches (EFB), fiber, and shell are the main solid residues produced during
extraction of oil from oil palm (Elaeis guineensis Jacq.). Thermogravimetric (TG) and Differential
Scanning Calorimetry (DSC) analyses of these materials were carried out on samples as received
and after solvent extraction. Presence of extractives and ash had a strong effect on the thermal
behavior of EFB. Observed thermal degradation behavior was described using two analytical
approaches. The first one considers that biomass thermal degradation occurs in three consecutive
steps. Three independent reaction models were used as second approach. The shapes of TG and
DSC curves were used to identify the degradation steps. The thermal degradation activation energy
(E) and pre-exponential factor (A) obtained by both approaches were very similar.
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