Biopellet from demineralized oil palm trunk

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 D...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2021-11, Vol.891 (1), p.12022
Main Authors: Wistara, N J, Diputra, P, Hendra, D
Format: Article
Language:English
Subjects:
Ashes
Calorific value
Cellulose
Demineralizing
Density
Durability
Hemicellulose
Moisture content
Pretreatment
Scanning electron microscopy
Sulfuric acid
Temperature
Thermal analysis
Water content
Water loss
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Summary: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.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/891/1/012022