Fuel and ash properties of biochar produced from microwave-assisted carbonisation of oil palm trunk core

Hanisom Abdullah, . and Wun Shun Jie, . and Norjan Yusof, . and Illyas Md. Isa, . Fuel and ash properties of biochar produced from microwave-assisted carbonisation of oil palm trunk core. pp. 81-92. ISSN 1511-2780

Oil palm trunk core (OPTC) is the biomass left over from plywood industry that utilises oil palm trunk as feedstock. This research aims to investigate the fuel and ash properties of biochar converted from OPTC biomass through microwave-assisted carbonisation process. The raw OPTC contains high moisture (64.3) with low fixed carbon (6.4) and calorific value (4.6 MJ kg-1). Microwave-assisted carbonisation of OPTC was investigated under several sizes temperature and microwave power variables. The results showed that biochar yield decreased with the increasing carbonisation temperature. The optimum conditions yielding 8.4 biochar was obtained at 350oC microwave power 800 W and 6 cm cube. Compared to raw OPTC biochar has higher fixed carbon (20-64) and about four times higher calorific value than the raw OPTC. In general all of the biochars produced in this study showed higher alkali index and total alkali values than those obtained from raw OPTC. Feedstock size seemed to affect biochar ash properties in this study. Biochar obtained from 6 cm cube tend to have lower slagging and fouling tendency than those produced with 4 cm cube.

Full text available from: Official URL: http://jopr.mpob.gov.my/fuel-and-ash-properties-of...

Abstract

Oil palm trunk core (OPTC) is the biomass left over from plywood industry that utilises oil palm trunk as feedstock. This research aims to investigate the fuel and ash properties of biochar converted from OPTC biomass through microwave-assisted carbonisation process. The raw OPTC contains high moisture (64.3) with low fixed carbon (6.4) and calorific value (4.6 MJ kg-1). Microwave-assisted carbonisation of OPTC was investigated under several sizes temperature and microwave power variables. The results showed that biochar yield decreased with the increasing carbonisation temperature. The optimum conditions yielding 8.4 biochar was obtained at 350oC microwave power 800 W and 6 cm cube. Compared to raw OPTC biochar has higher fixed carbon (20-64) and about four times higher calorific value than the raw OPTC. In general all of the biochars produced in this study showed higher alkali index and total alkali values than those obtained from raw OPTC. Feedstock size seemed to affect biochar ash properties in this study. Biochar obtained from 6 cm cube tend to have lower slagging and fouling tendency than those produced with 4 cm cube.

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Item Type:	Article
AGROVOC Term:	Elaeis guineensis
AGROVOC Term:	Oil palms
AGROVOC Term:	Trunks
AGROVOC Term:	Biomass
AGROVOC Term:	Fuels
AGROVOC Term:	Ash content
AGROVOC Term:	Carbon
AGROVOC Term:	Charcoal
AGROVOC Term:	Nitrogen
AGROVOC Term:	Heating
Geographical Term:	Malaysia
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	28 Apr 2025 07:23
URI:	http://webagris.upm.edu.my/id/eprint/24311

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