Characteristics of Biomass Pellets from Palm Shells, Coconut Shells and Teak Wood
Ayunda Gustiani Putri, Yolanda Frista, Frendy Samuel Pratama, Nuraeni Dwi Dharmawati, *Rengga Arnalis Renjani

Department of Agricultural Engineering, Faculty of Agricultural Technology, Stiper Agricultural University (INSTIPER)
*email: rengga_tepins[at]instiperjogja.ac.id

Abstract

Agricultural waste such as palm shells, coconut shells, and large amounts of sawn waste have not been wisely utilized. This study aims to improve the quality of biomass pellets by performing a variety of mixed materials Palm Shell (PS), Coconut Shell (CS), and Teak Wood Powder (TWP). The composition of materials used in the study is 50%PS, 25%CS, 25%TWP (K1)- 25%PS, 50%CS, 25%TWP (K2)- and 25%PS, 25%CS, 50%TWP (K3). Testing of biomass pellet characteristics using wood pellet standard (SNI 8021-2014). The data analysis used a 5% Analysis of Variance (ANOVA) to see how the ingredient mixture affects the characteristics of biomass pellets. The test result obtained biomass pellets mixed with 25%PS, 50%CS, 25%TWP (K2) are the best biomass pellets with a moisture content of 10.78%, diameter 0.63 cm, length 4.68 cm, density 0.8 g/cm3, ash content 1.1%, vaporized substance 73.52%, carbon bound 25.38% and calorific value 4.5050.79 cal/g. The results found that variations in the mixture of ingredients affect the moisture content, density, ash content, evaporating substances, carbon bound, but has no effect on the diameter, length, and calorific value of biomass pellets. It is expected that the making of biomass pellets that use agricultural waste can increase the economic value of waste and produce the best quality of biomass pellets.

Keywords: Biomass- biopelet- palm shell- teak wood- coconut shell

Topic: Renewable energy