The aim of this research is to analyzes the effect of sulfuric acid concentration and the type of adhesive on the characteristics of coconut shell and fiber biobriquettes, by determining the quality parameters of biobriquettes in accordance with SNI 01-6235-2000. Coconut shells and husks are activated using sulfuric acid, with concentrations of 1, 1.5 and 2 N. The adhesives added is tapioca and…