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Assessment of the thermal decomposition kinetics of empty fruit bunch, kernel shell and their blend

Authors :
Waldir Antonio Bizzo
Paola Gauthier-Maradei
Yesid Javier Rueda-Ordóñez
Carlos Junior Arias-Hernández
Julián Fernando Manrique-Pinto
Source :
Bioresource technology. 292
Publication Year :
2019

Abstract

In this work, were studied the thermal and kinetic characteristics of the palm kernel shell (PKS) and empty fruit bunch (EFB) from the African oil palm. Experiments in the inert atmosphere were carried out in a thermogravimetric analyzer. In the kinetic analysis were applied the one-step reaction through iso-conversion methods, mechanism of independent parallel reactions (MIPR), and mechanism of consecutive reactions (MCR). The one-step reaction mechanism overestimated the thermal decomposition of all samples; however, the best was the EFB. The MIPR showed to be representative of the thermal decomposition of all samples, and the proposed correlations between the pre-exponential factor and the heating rate improved the accuracy of the model. The MCR analysis showed that using the same kinetic parameters applied in the MIPR does not affect reliability. Finally, as a conclusion, blending PKS with EFB increase 5% heating value and decrease 50% ash content.

Details

ISSN :
18732976
Volume :
292
Database :
OpenAIRE
Journal :
Bioresource technology
Accession number :
edsair.doi.dedup.....c95130d9cbc6924db06bbdbcb2b5be64