| dc.description.abstract | Research has been conducted on the effect of NaOH concentration on the
calorific value of oil palm empty fruit bunch charcoal briquettes. NaOH solution is
used as a pretreatment material for oil palm empty fruit bunches charcoal. Oil palm
empty fruit bunches are dried under the sun and carbonized for 1 hour to produce oil
palm empty fruit bunches charcoal with 24% yield. Oil palm empty fruit bunches
charcoal is characterized by SEM-EDX. Then the charcoal was soaked in the NaOH
solution at a concentration variation of 0,1 N; 0,2 N; and 0,3 N for 24 hours. The
charcoal is mixed with tapioca gel and the mixture is molded in a cylindrical mold.
Each briquette is identified with a bomb calorimeter for calorific value. Briquettes
with the highest caloric value are analyzed for quality based on SNI
No.01/6325/2000 which includes calorific value, moisture content, ash content,
volatile matter content, and fixed carbon content. The caloric value of charcoal
briquettes without pretreatment is 5057 cal/g. The caloric value of charcoal briquettes
with pretreatment NaOH 0,1 N; 0,2 N; and 0,3 N are respectively 5682 cal/g, 5707
cal/g and 5865 cal/g. The highest calorific value is found in charcoal briquettes with
pretreatment NaOH 0,3 N. The results of charcoal SEM-EDX show that charcoal
with pretreatment NaOH has a more open pore and higher carbon content compared
to charcoal without pretreatment. Charcoal briquettes with pretreatment NaOH 0,3 N
have a moisture content of 3.8315%, ash content of 11.0375%, volatile matter
content of 25.801%, and fixed carbon content of 59.33%. Charcoal briquettes with
pretreatment NaOH 0,3 N do not meet SNI No.01/6325/2000. | en_US |
