Properties of biochar produced from microwave-assisted carbonisation of oil palm trunk core (IR)

Properties of biochar produced from microwave-assisted carbonisation of oil palm trunk core (IR)

This research aimed to assess the properties of biochar fuel produced using microwave-assisted carbonisation of oil palm trunk core (OPTC) biomass. Microwave-assisted carbonisation of OPTC was investigated under several sizes, temperatures and microwave power variables. The fuel properties of raw OP...

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Main Author: Wun, Shun Jie
Format: thesis
Language:eng
Published: 2015
Subjects:
TP Chemical technology
Online Access:https://ir.upsi.edu.my/detailsg.php?det=1286
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spelling oai:ir.upsi.edu.my:12862020-02-27 Properties of biochar produced from microwave-assisted carbonisation of oil palm trunk core (IR) 2015 Wun, Shun Jie TP Chemical technology This research aimed to assess the properties of biochar fuel produced using microwave-assisted carbonisation of oil palm trunk core (OPTC) biomass. Microwave-assisted carbonisation of OPTC was investigated under several sizes, temperatures and microwave power variables. The fuel properties of raw OPTC and biochar products were characterised by physical and chemical analyses. An open-ended coaxial probe method was used to measure the effect of frequency, moisture content and structural direction towards dielectric properties of OPTC. The result showed that raw OPTC contained high moisture content (~64.3%), low fixed carbon (~6.4%) and low calorific value (0.0046 GJkg-1). Dielectric constant of OPTC was found to decrease with the increasing of microwave frequency. Regardless of OPTC structural directions, an increasing pattern of dielectric constant and dielectric loss was detected with the increasing moisture content in biomass. The increasing of carbonisation temperatures resulted in decreased biochar yield. The optimum conditions which yielded 8.4% biochar was obtained at 350oC, power 800W and 6 cm3 OPTC size. In conclusion, OPTC can be classified as a medium absorbing biomass. Microwave-assisted carbonisation has produced biochar with four times higher calorific value than raw OPTC. The implication of this study is OPTC biochar has high slagging and fouling tendencies that could impose technical challenges in the future bioenergy applications. 2015 thesis https://ir.upsi.edu.my/detailsg.php?det=1286 https://ir.upsi.edu.my/detailsg.php?det=1286 text eng closedAccess Masters Universiti Pendidikan Sultan Idris Fakulti Sains dan Matematik N/A
institution Universiti Pendidikan Sultan Idris
collection UPSI Digital Repository
language eng
topic TP Chemical technology
spellingShingle TP Chemical technology
Wun, Shun Jie
Properties of biochar produced from microwave-assisted carbonisation of oil palm trunk core (IR)
description This research aimed to assess the properties of biochar fuel produced using microwave-assisted carbonisation of oil palm trunk core (OPTC) biomass. Microwave-assisted carbonisation of OPTC was investigated under several sizes, temperatures and microwave power variables. The fuel properties of raw OPTC and biochar products were characterised by physical and chemical analyses. An open-ended coaxial probe method was used to measure the effect of frequency, moisture content and structural direction towards dielectric properties of OPTC. The result showed that raw OPTC contained high moisture content (~64.3%), low fixed carbon (~6.4%) and low calorific value (0.0046 GJkg-1). Dielectric constant of OPTC was found to decrease with the increasing of microwave frequency. Regardless of OPTC structural directions, an increasing pattern of dielectric constant and dielectric loss was detected with the increasing moisture content in biomass. The increasing of carbonisation temperatures resulted in decreased biochar yield. The optimum conditions which yielded 8.4% biochar was obtained at 350oC, power 800W and 6 cm3 OPTC size. In conclusion, OPTC can be classified as a medium absorbing biomass. Microwave-assisted carbonisation has produced biochar with four times higher calorific value than raw OPTC. The implication of this study is OPTC biochar has high slagging and fouling tendencies that could impose technical challenges in the future bioenergy applications.
format thesis
qualification_name
qualification_level Master's degree
author Wun, Shun Jie
author_facet Wun, Shun Jie
author_sort Wun, Shun Jie
title Properties of biochar produced from microwave-assisted carbonisation of oil palm trunk core (IR)
title_short Properties of biochar produced from microwave-assisted carbonisation of oil palm trunk core (IR)
title_full Properties of biochar produced from microwave-assisted carbonisation of oil palm trunk core (IR)
title_fullStr Properties of biochar produced from microwave-assisted carbonisation of oil palm trunk core (IR)
title_full_unstemmed Properties of biochar produced from microwave-assisted carbonisation of oil palm trunk core (IR)
title_sort properties of biochar produced from microwave-assisted carbonisation of oil palm trunk core (ir)
granting_institution Universiti Pendidikan Sultan Idris
granting_department Fakulti Sains dan Matematik
publishDate 2015
url https://ir.upsi.edu.my/detailsg.php?det=1286
_version_ 1747832966027935744

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