Effect of mixing ratios on physical properties and energy consumption of leucaena pellets by using fermented cassava-rhizome

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Weeranut Intagun
Arisa Maden


The purpose of this research was to study the effect of mixing ratios of binder on the properties of leucaena (Leucaena leucocephala) pellets. In this study, the fermented cassava-rhizome was used as a binder in the production of leucaena (Leucaena leucocephala) pellets. The duration time of the fermentation process was three days. The mixing ratios of leucaena with fermented cassava-rhizome varied at 90:10, 80:20, 70:30, 60:40, and 50:50, respectively. The results demonstrated that the mixing ratios of binder affected the bulk density and durability of leucaena pellets. The increasing amount of fermented cassava-rhizome increased the bulk density and durability of leucaena pellets. The physical properties were determined following the Pellet Fuels Institute standard specification for residential/commercial densified fuel. Moreover, the results illustrated that the optimal mixing ratios (leucaena: fermented cassava-rhizome) in the production process of pellets was 70:30, as this mixing ratio provided the lowest energy consumption (420 kWh/ton) in pellets production and the highest mass yield at 94.3%. Thus, the results obtained from this research suggested that the fermented cassava-rhizome as a binder might be an alternative adhesive material for improving the asymmetrical structure and physical properties of biomass raw materials


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