| Summary: | Biomass briquette is one of the alternative energy. Cocoa shell and rice
husk are the potential ingredients to be produced as bio-briquette. The objective of
this research is to determine the composition between cocoa shell and rice husk
with certain particle size to the bio-briquette characteristic.
Cocoa shell and rice husk as the ingredients should be pyrolized to be
charcoal. The charcoal is shredded and screened by the 25, 35 and 50 mesh. The
soft charcoal is mixed with 10% starch adhesive to become briquette. The
variations of composition between cocoa shell and rice husk for every particle size
are: 100%:0%, 75%:25%, 50%:50%, 25%:75% and 0%:100%. The briquette is
dried and analyzed for the content.
The highest heating value from the cocoa shell and rice husk is 5190.15
cal/g reached by the sample of 100% of cocoa and 0% of rice husk with 25 mesh
of particle size. The lowest ash content is 18.05% from the sample of 100% cocoa
shell and 0% of rice husk with 25 mesh of particle size. The lowest water content
is 4.1486% from the sample of 0% cocoa shell and 100% of rice husk husk with
25 mesh of particle size. The lowest volatile matter is 10.0133% from the sample
of 100% cocoa shell and 0% of rice husk with 25 mesh of particle size. The
conclusion of this research is that in every rice husk charcoal addition will
decrease the heating value, volatile matter and fixed carbon. Every cocoa shell
charcoal addition will increase the heating value and fixed carbon. All of the
briquettes are qualified to the SNI accept the ash content.
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