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AUTHOR(S): Elias Kethobile, Clever Ketlogetswe
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ABSTRACT Densification of the torrefied biomass is one of the approaches used to develop a carbon-neutral solid fuel with characteristics similar to of coal. The process highly enhances the biomass energy density and its hydrophobicity. However, difficulties are encountered when undertaking the densification process of the torrefied biomass as it has lost its natural binding capacities. Several binding agents have been used to try and supplement the lost natural binders. Binding agents are mostly used in the range 0.5 - 10% of the total mass . The literature shows that several attempts have been made to try and find suitable binding agents for different torrefied materials. However, the study on binders used during densification of torrefied Jatropha biomass material is limited. This study investigates the effects of different compression and wax binder levels on the solid fuel properties of Jatropha biomass. The study investigated three torrefied Jatropha biomass materials (stem torrefied at 225oC, seed cake torrefied at 250oC and fruit husk torrefied at 275oC), pelletized at three compression levels and five binding wax levels. The findings from the study showed that the torrefied Jatropha seed cake pellets had superior solid fuel qualities in term of pelletised at the lowest pressure with 5% binding wax level showed higher solid fuel quality. The torrefied stem pellets generally exhibited poor pellet quality but its pellets made from lower pressure ) and 10% binding wax were the most stable. |
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KEYWORDS Jatropha plant, binding agent, biomass, densification, burning rate, pressure |
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Cite this paper Elias Kethobile, Clever Ketlogetswe. (2022) Investigation of the Effects of Pelletizing Pressure and Binding Wax on the Fuel Properties of Torrefied Jatropha Biomass. International Journal of Chemistry and Chemical Engineering Systems, 7, 1-16 |
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