Kinetic Modelling of Esterification and Transesterification Processes for Biodiesel Production Utilising Waste-Based Resource

Hazrat, MA; Rasul, MG; Khan, MMK; Ashwath, N; Silitonga, AS; Fattah, IMR; Mahlia, TMI

Kinetic Modelling of Esterification and Transesterification Processes for Biodiesel Production Utilising Waste-Based Resource

Hazrat, MA Rasul, MG Khan, MMK Ashwath, N Silitonga, AS Fattah, IMR Mahlia, TMI

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Publisher:: MDPI
Publication Type:: Journal Article
Citation:: CATALYSTS, 2022, 12, (11)
Issue Date:: 2022-11-01

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Field	Value	Language
dc.contributor.author	Hazrat, MA
dc.contributor.author	Rasul, MG
dc.contributor.author	Khan, MMK
dc.contributor.author	Ashwath, N
dc.contributor.author	Silitonga, AS
dc.contributor.author	Fattah, IMR
dc.contributor.author	Mahlia, TMI
dc.date.accessioned	2023-01-12T22:08:10Z
dc.date.available	2023-01-12T22:08:10Z
dc.date.issued	2022-11-01
dc.identifier.citation	CATALYSTS, 2022, 12, (11)
dc.identifier.issn	2073-4344
dc.identifier.issn	2073-4344
dc.identifier.uri	http://hdl.handle.net/10453/164909
dc.description.abstract	<jats:p>Process optimisation and reaction kinetic model development were carried out for two-stage esterification-transesterification reactions of waste cooking oil (WCO) biodiesel. This study focused on these traditional processes due to their techno-economic feasibility, which is an important factor before deciding on a type of feedstock for industrialisation. Four-factor and two-level face-centred central composite design (CCD) models were used to optimise the process. The kinetic parameters for the esterification and transesterification processes were determined by considering both pseudo-homogeneous irreversible and pseudo-homogeneous first-order irreversible processes. For the esterification process, the optimal conditions were found to be an 8.12:1 methanol to oil molar ratio, 1.9 wt.% of WCO for H2SO4, and 60 °C reaction temperature for a period of 90 min. The optimal process conditions for the transesterification process were a 6.1:1 methanol to esterified oil molar ratio, 1.2 wt.% of esterified oil of KOH, reaction temperature of 60 °C, and a reaction time of 110 min in a batch reactor system; the optimal yield was 99.77%. The overall process conversion efficiency was found to be 97.44%. Further research into reaction kinetics will aid in determining the precise reaction process kinetic analysis in future.</jats:p>
dc.language	English
dc.publisher	MDPI
dc.relation.ispartof	CATALYSTS
dc.relation.isbasedon	10.3390/catal12111472
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0306 Physical Chemistry (incl. Structural)
dc.title	Kinetic Modelling of Esterification and Transesterification Processes for Biodiesel Production Utilising Waste-Based Resource
dc.type	Journal Article
utslib.citation.volume	12
utslib.for	0306 Physical Chemistry (incl. Structural)
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CAMGIS - Centre for Advanced Modelling and Geospatial lnformation Systems
utslib.copyright.status	open_access	*
dc.date.updated	2023-01-12T22:08:07Z
pubs.issue	11
pubs.publication-status	Published
pubs.volume	12
utslib.citation.issue	11

Abstract:

Process optimisation and reaction kinetic model development were carried out for two-stage esterification-transesterification reactions of waste cooking oil (WCO) biodiesel. This study focused on these traditional processes due to their techno-economic feasibility, which is an important factor before deciding on a type of feedstock for industrialisation. Four-factor and two-level face-centred central composite design (CCD) models were used to optimise the process. The kinetic parameters for the esterification and transesterification processes were determined by considering both pseudo-homogeneous irreversible and pseudo-homogeneous first-order irreversible processes. For the esterification process, the optimal conditions were found to be an 8.12:1 methanol to oil molar ratio, 1.9 wt.% of WCO for H2SO4, and 60 °C reaction temperature for a period of 90 min. The optimal process conditions for the transesterification process were a 6.1:1 methanol to esterified oil molar ratio, 1.2 wt.% of esterified oil of KOH, reaction temperature of 60 °C, and a reaction time of 110 min in a batch reactor system; the optimal yield was 99.77%. The overall process conversion efficiency was found to be 97.44%. Further research into reaction kinetics will aid in determining the precise reaction process kinetic analysis in future.

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http://hdl.handle.net/10453/164909