e-Jurnal
Analysis of the Quality of Bio-briquettes from the mixture of Palm Empty Fruit Bunches and Palm Kernel Shells
The quality of bio-briquettes from palm empty fruit bunches (PEFB) and palm kernel shells (PKS) has been studied. The research aimed to determine the effect of ratio PEFB to PKS and sago starch as adhesive agent to the characteristics of the bio-briquettes. The characteristics include heating value, water content, relaxation, and density. Response Surface Method was applied both in initial design factors as well as in the evaluation of the result obtained. PEFB and PKS were carbonized separately and then mixed together according to the ratio of 0: 100; 30:70; 50:50; 70:30; and 100: 0 (% w/w). Charcoal mixed, affixed with an adhesive made from sago starch 4%, 6%, 8%, 10% and 12% concentration (w/w). Furthermore, the bio-briquette was formed using a cylindrical mold with a hydraulic press. The results showed that the use of 100% palm kernel shell charcoal and 8% adhesive provided the highest calorific value to 5509 cal/g. In addition, the water content, relaxation, and density of the bio-briquette were 10.24%; 1.42%, and 0.87 g/cm3, respectively. The bio-briquette produced meets the standards SNI 1-6235-2000 for charcoal.
Key words: bio-briquette, palm oil empty fruit brunches, palm oil shells, calorific value
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