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Microwave-assisted pyrolysis of crude glycerol

Alternative fuel very important in the renewable energy research. Crude glycerol, an excess by-product of biodiesel production that will led to environment problem was pyrolysed using a microwave heating technique under an oxygen-deficient environment over a bed of coconut shell-based activated carb...

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Main Author: Leong, Swee Kim
Format: Thesis
Language:English
Published: 2017
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://eprints.utm.my/id/eprint/78674/1/LeongSweeKimMFKM2017.pdf
http://eprints.utm.my/id/eprint/78674/
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spelling my.utm.786742018-08-29T07:35:49Z http://eprints.utm.my/id/eprint/78674/ Microwave-assisted pyrolysis of crude glycerol Leong, Swee Kim TJ Mechanical engineering and machinery Alternative fuel very important in the renewable energy research. Crude glycerol, an excess by-product of biodiesel production that will led to environment problem was pyrolysed using a microwave heating technique under an oxygen-deficient environment over a bed of coconut shell-based activated carbon catalyst. The batch mode pyrolysis process was carried out at various temperatures and inert carrier gas flow rates to determine the yield of pyrolysis product, i.e solid (bio-char), liquid (bio-oil), and gaseous (bio-gas). The effect of catalyst on product yield was also investigated. Characterization of the pyrolysed products was performed using different instruments. Thermogravimetric analysis (TGA) was performed to determine the thermal characteristic of the bio-char. The morphology of the bio-char produced was characterised by using a field emission scanning electron (FE-SEM) and energy dispersive X-Ray (EDX). The surface area of bio-char was determined via a Brunauer, Emmett and Teller (BET) method. The functional groups of bio-oil were determined by Fourier transform infrared spectroscopy (FT-IR). A gas chromatography- mass spectormetry (GC-MS) was utilised to analyse the liquid products obtained from the experiment. Gas chromatography-thermal conductivity detector (GC-TCD) was used to analysed the bio-gas. Results shows that the increase of pyrolysis temperature led to the increase of bio-gas yield. Highest bio-gas yield was obtained for test case of 100mL/min at 700°C, while the highest bio-liquid yield was obtained for test case of 1000mL/min at 400°C. The experiment results shows that the calorific value for the liquid product was around 14.1MJ/kg and 20.6MJ/kg for gaseous product, this showed that the product that produced from the pyrolysis process had the potential to be an alternative fuels. 2017-02 Thesis NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/78674/1/LeongSweeKimMFKM2017.pdf Leong, Swee Kim (2017) Microwave-assisted pyrolysis of crude glycerol. PhD thesis, Universiti Teknologi Malaysia, Faculty of Mechanical Engineering. http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:110397
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Leong, Swee Kim
Microwave-assisted pyrolysis of crude glycerol
description Alternative fuel very important in the renewable energy research. Crude glycerol, an excess by-product of biodiesel production that will led to environment problem was pyrolysed using a microwave heating technique under an oxygen-deficient environment over a bed of coconut shell-based activated carbon catalyst. The batch mode pyrolysis process was carried out at various temperatures and inert carrier gas flow rates to determine the yield of pyrolysis product, i.e solid (bio-char), liquid (bio-oil), and gaseous (bio-gas). The effect of catalyst on product yield was also investigated. Characterization of the pyrolysed products was performed using different instruments. Thermogravimetric analysis (TGA) was performed to determine the thermal characteristic of the bio-char. The morphology of the bio-char produced was characterised by using a field emission scanning electron (FE-SEM) and energy dispersive X-Ray (EDX). The surface area of bio-char was determined via a Brunauer, Emmett and Teller (BET) method. The functional groups of bio-oil were determined by Fourier transform infrared spectroscopy (FT-IR). A gas chromatography- mass spectormetry (GC-MS) was utilised to analyse the liquid products obtained from the experiment. Gas chromatography-thermal conductivity detector (GC-TCD) was used to analysed the bio-gas. Results shows that the increase of pyrolysis temperature led to the increase of bio-gas yield. Highest bio-gas yield was obtained for test case of 100mL/min at 700°C, while the highest bio-liquid yield was obtained for test case of 1000mL/min at 400°C. The experiment results shows that the calorific value for the liquid product was around 14.1MJ/kg and 20.6MJ/kg for gaseous product, this showed that the product that produced from the pyrolysis process had the potential to be an alternative fuels.
format Thesis
author Leong, Swee Kim
author_facet Leong, Swee Kim
author_sort Leong, Swee Kim
title Microwave-assisted pyrolysis of crude glycerol
title_short Microwave-assisted pyrolysis of crude glycerol
title_full Microwave-assisted pyrolysis of crude glycerol
title_fullStr Microwave-assisted pyrolysis of crude glycerol
title_full_unstemmed Microwave-assisted pyrolysis of crude glycerol
title_sort microwave-assisted pyrolysis of crude glycerol
publishDate 2017
url http://eprints.utm.my/id/eprint/78674/1/LeongSweeKimMFKM2017.pdf
http://eprints.utm.my/id/eprint/78674/
http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:110397
_version_ 1643657970562629632
score 13.211869

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