Pyrolytic characteristics and kinetic parameters evaluation of cassava stalks using thermogravimetric analyzer

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Sukarni Sukarni, M. Rifqi Ramadhan

2020 Key Engineering Materials Vol. 851 KEM Conference paper Cited by 4 Quartile

Abstract

Pyrolytic characteristics and kinetics of cassava stalks as a renewable energy source were delved via a thermogravimetric (TG) analyzer. About 10 mg powder of the sample was heated up in the TG cavity under inert conditions with 50 ml.min-1 nitrogen flow rate and operated at 20oC min-1 of heating program. The pyrolysis process of cassava stalks was taken place into three main stages, in which the peak reaction occurred at the second stage with 70% of the mass was degraded. The differential method of Arrhenius kinetic evaluation resulted in the values of reaction order (n) that was 0.99, activation energy that was 89.46 kJ/mol and logarithmic frequency factor (log A) was 7.7 min-1. © 2020 Trans Tech Publications Ltd, Switzerland.

Affiliations

Department of Mechanical Engineering, State University of Malang, Semarang Street 5, Malang, 65145, Indonesia; Centre of Advanced Materials for Renewable Energy, State University of Malang, Semarang Street 5, Malang, 65145, Indonesia