Pemanfaatan Sampah Ranting dan Daun Kering Menjadi Pelet Biomassa dengan Bahan Pengikat Alami dari Sampah Kulit Singkong

Abstract

Biomass waste such as tree branches and dry leaves can be utilized as biomass pellets. The purpose of this study was to analyze the best composition variation between dry branches and leaves in producing biomass pellets and to identify the physical and chemical characteristics of pellets including water content, volatile matter content, ash content, bound carbon content, calorific value and combustion rate according to SNI 8657-2018 Concerning Biomass Pellets for Energy. The method used in this study was a one-way Completely Randomized Design (CRD) with a composition ratio of dry branches: leaves (90:10, 80:20, 70:30, 60:40, and 50:50) and was repeated 3 times. The results of the pellet density test still do not meet SNI standards. Meanwhile, the chemical characteristics such as water content in biomass pellets that have met SNI 8657-2018 are variations of 90%:10%, 80%:20%, 70%:30% and 60%:40%. In terms of volatile matter content, all variations have met SNI requirements. In terms of ash content, only the 90%:10% variation met SNI requirements. For the bound carbon parameter, the biomass pellets that met SNI standards were the 90%:10% and 60%:40% variations. The highest calorific value obtained from the two tested samples was found in the 90%:10% variation, at 3,992 cal/g. This calorific value meets SNI 8657-2018 requirements. The lowest combustion rate was obtained at a composition of 90%:10%, which was 0.38 gr/minute, which was the most optimal variation in producing biomass combustion with a high calorific value and a longer and more efficient flame time.