Suharyatun, Siti and Naufal A., Muhammad and Haryanto, Agus and Rahmawati, Winda (2021) VALORIZATION OF CORNCOB THROUGH TORREFACTION PROCESS. In: International Conference on Biomass and Bioenergy. (Submitted)
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Abstract
Corncobs is a waste of post-harvest corn processing that has great potential to be used as a source of renewable solid fuel. Its high moisture and volatile solids content produces a lot of smoke when corncob is burned, so it is rarely used as fuel. This study aims to improve the quality of corncob fuel through the torrefaction process. The corncob was naturally dried using sunrays for two days and cut into pieces of 1-3 cm in size. The torrefaction process was carried out using a cylindrical rotary reactor which operates at a speed of 30 RPM and is heated using an external heat source. The variations of torrefaction time were 30, 40, and 60 minutes. The parameters to be observed included moisture content, ash content, volatile content, mass density, bulk density, calorific value, color change, and hydrophobicity of materials. The results showed that the torrefaction process improved the quality of corncobs as seen from an increase in calorific value, an increase in hydrophobicity, and a decrease in the composition of hemicellulose and cellulose. In this study, the calorific value of the torrefaction corncobs was 18.89 MJ / kg to 21.61 MJ / kg, which was higher than the caloric value of the non-torrefactioned corncobs of 17.66 MJ / kg. The torrefactioned corncobs are also more hydrophobic and absorb less water than the non-torrefactioned corncobs.
| Item Type: | Conference or Workshop Item (Paper) |
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| Subjects: | S Agriculture > S Agriculture (General) |
| Divisions: | Fakultas Pertanian (FP) > Prodi Teknik Pertanian |
| Depositing User: | SITI SUHAR |
| Date Deposited: | 26 Jun 2024 01:57 |
| Last Modified: | 26 Jun 2024 01:57 |
| URI: | http://repository.lppm.unila.ac.id/id/eprint/36821 |
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