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Open AccessArticle

Thermal Degradation Kinetics of Sugarcane Bagasse and Soft Wood Cellulose

Department of Chemistry, University of Zululand (KwaDlangezwa Campus), Private Bag X1001, KwaDlangezwa 3886, Kwazulu Natal, South Africa
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Materials 2017, 10(11), 1246; https://doi.org/10.3390/ma10111246
Received: 12 June 2017 / Revised: 24 August 2017 / Accepted: 25 August 2017 / Published: 28 October 2017
(This article belongs to the Special Issue Energetic Materials and Processes)
The properties of untreated sugar cane bagasse (SCB) and soft wood (SW) and their respective celluloses were investigated. The celluloses indicated improved crystallinity index values and decreased concentration of lignin and hemicellulose compared to their untreated counterparts. Three degradation models, Kissinger-Akahira-Sunose (KAS), Flynn-Wall-Ozawa (OFW), and Kissinger (KGR) methods were employed to determine apparent activation energy values. Generally, the thermal degradation processes of both sugarcane bagasse and soft wood included dehydration, degradation of hemicellulose and cellulose, whereas the lignin degraded from the degradation temperature of hemicellulose to the end of the cellulose. The apparent activation energy values obtained from the OFW and KAS models vary with the degree of conversion, and showed similar trends. The activation energies obtained by KGR were relatively lower than those obtained from the KAS and OFW methods. View Full-Text
Keywords: lignocellulosic waste; kinetics modelling; apparent activation energy; thermogravimetric analysis lignocellulosic waste; kinetics modelling; apparent activation energy; thermogravimetric analysis
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Mohomane, S.M.; Motaung, T.E.; Revaprasadu, N. Thermal Degradation Kinetics of Sugarcane Bagasse and Soft Wood Cellulose. Materials 2017, 10, 1246.

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