Open AccessBiopellet from demineralized oil palm trunk
Author(s) -
Nyoman J Wistara,
Prasetia Diputra,
Djeni Hendra
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/891/1/012022
Subject(s) - water content , pulp and paper industry , hemicellulose , materials science , cellulose , raw material , durability , palm oil , moisture , bulk density , sulfuric acid , composite material , chemistry , environmental science , food science , metallurgy , geotechnical engineering , organic chemistry , soil science , engineering , soil water
Oil palm trunk (OPT) is a potential raw material for biopellet manufacturing. This study aimed to reduce the ash content of biopellet through pre-treatment with sulfuric acid. The moisture content, durability, ash content, density, and calorific values of the biopellet were determined according to DIN EN 14961-2 and 51731 standards. Scanning electron microscopy (SEM) indicated the presence of inter-particle interlocking in the highly durable biopellet. Thermal analysis indicated that the mass and water loss, hemicellulose, cellulose, and lignin decomposition occurred at 76.12 ºC, 113.97-200 ºC, 310-360 ºC, and >400 ºC, respectively. Biopellet produced retained a moisture content of 3.40-8.90%, the durability of 97.75-99.38%, ash content after pre-treatment with H 2 SO 4 of 1.02-1.47%, control ash content of 2.20-3.31%, the density of 1.03-1.30 g/cm 3 , and the calorific value of 3954-4608 kcal/kg. The biopellet quality fulfilled the requirements of DIN EN 14961-2, 51731, and SNI 8021-2014 standard, except for the ash content of the control.