PREPARATION OF BIOCOKE FROM PALM OIL RESIDUE
Keywords:
Bio-solid fuel, biocoke, biomass, palm oil residue, renewable energyAbstract
Biocoke is a bio-solid fuel which is produced from biomass resources such as waste from agro-processing industry. Biocoke is expected to use as a co-fuel with coke and coal for cupola furnace in metal-casting industry and boiler. The expected properties of biocoke for industrial use should have the following properties: 1) density is higher than 1.1 g/cm3, 2) maximum compressive strength is higher than 20 MPa and 3) calorific value is higher than 4,000 kcal/kg. In this research, biocoke was prepared from palm oil residue at different forming time (10, 15, 20, and 25 min). The forming temperature and forming pressure were, respectively, fixed at 180oC and 16 MPa. The density and maximum compressive strength of the prepared biocokes slightly increase with the increase of forming time. In addition, the calorific value of biocoke significantly increases when the forming time is increased from 10 min to 15 min. However, the increase in forming time longer than 15 min has no effect on the calorific value of biocoke from palm oil residues.
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