Abstract:
Abstract. To utilize it to be a useful fuel, corncob waste must be processed first, one of which is
processed into briquettes. the use of jackfruit seed flour makes the water content and ash content of
briquettes lower than using tapioca flour. The heating value of briquettes using jackfruit seed flour is
also higher than using tapioca flour. This study aims to determine the effect of using jackfruit Seed
adhesive on the characteristics of corncobs waste briquettes which include water content, ash
content, volatile matter levels, and heat value. Knowing the characteristics of the best corncobs
waste briquettes based on SNI standards. Corn cobs are first converted into charcoal by
carbonization process after which the charcoal is mixed with an adhesive derived from jackfruit seed
flour. Methods In this study, a mixture of corncob charcoal and jackfruit seed flour was 90%: 10%,
85%: 15%, and 80%: 20%. Then the mixture of charcoal and flour is printed with pressure variations
of 100 kg cm
-2
, and 120 kg cm
-2
. Briquette characteristic parameters based on SNI 01-6235-2000 are
water content, ash content, volatile matter content, and heating value. The results showed that the
briquettes with the best characteristics were when variations in the composition of charcoal and
jackfruit seed flour were 90%: 10%. The briquette has a characteristic water content of 7.01%, an ash
content of 6.88%, volatile matter content of 17.89%, and a calorific value of 6241.81 cal g
-1
. Overall,
the briquette still does not meet the SNI 01-6235-2000 standard because the briquette's volatile
matter level exceeds the specified maximum limit of 15%.
Keywords: corncob charcoal, briquette carteristic, jackfruit seed adhesives
