PENGARUH KONSENTRASI PEREKAT TERHADAP BIOBRIKET TONGKOL JAGUNG DENGAN METODE KARBONISASI

Abstract

The depletion of fossil energy reserves is driven by population and economic growth. Biomass offers a promising renewable energy alternative. This study aimed to assess the effect of wood glue (epoxy) adhesive concentration on the quality of biobriquettes to meet SNI 01-6235-2000 standards. Corn cob waste was cleaned, dried for 3 days, and carbonized at 450 °C for 30 minutes. The resulting charcoal was ground and sieved (20 mesh). The adhesive was mixed with charcoal at ratios of 5%, 10%, 15%, 20%, and 25%. The biobriquettes were dried in an oven at 110 °C for 4 hours and analyzed for water content, ash content, volatile matter, carbon content, and calorific value. The highest calorific value of 5435.24 cal/g occurred at 5% adhesive, with 2.19% water content, 6.71% ash content, 42.91% volatile matter, and 47.01% carbon. Higher adhesive concentrations increased water, ash, and carbon contents while reducing calorific values. Keywords: biobriquettes, renewable energy, corn cobs