Synergistic interaction and biochar improvement over co-torrefaction of intermediate waste epoxy resins and fir

Chen, CY; Chen, WH; Lim, S; Ong, HC; Ubando, AT

Synergistic interaction and biochar improvement over co-torrefaction of intermediate waste epoxy resins and fir

Chen, CY Chen, WH Lim, S Ong, HC Ubando, AT

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Environmental Technology and Innovation, 2021, 21, pp. 1-18
Issue Date:: 2021-02-01

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Field	Value	Language
dc.contributor.author	Chen, CY
dc.contributor.author	Chen, WH
dc.contributor.author	Lim, S
dc.contributor.author	Ong, HC
dc.contributor.author	Ubando, AT
dc.date.accessioned	2022-05-17T03:30:33Z
dc.date.available	2022-05-17T03:30:33Z
dc.date.issued	2021-02-01
dc.identifier.citation	Environmental Technology and Innovation, 2021, 21, pp. 1-18
dc.identifier.issn	2352-1864
dc.identifier.issn	2352-1864
dc.identifier.uri	http://hdl.handle.net/10453/157453
dc.description.abstract	This study investigated the synergistic effect of co-torrefaction with intermediate waste epoxy resins and fir in a batch-type reactor towards biochar improvement. The synergistic effect ratio was used to judge the interaction between the two materials assisted by statistical tools. The main interaction between the feedstocks was the catalytic reaction and blocking effect. Sodium presented in the intermediate waste had a pronounced catalytic effect on the liquid products during torrefaction. It successfully enhanced the volatile matter emissions and exhibited an antagonistic effect on the solid yield. Different from the catalytic reaction that occurred during short retention time, the blocking effect was more noticeable with a longer duration, showing a synergistic effect on the solid yield. Alternatively, a significantly antagonistic effect was exerted on oxygen content, while the carbon content displayed a converse trend. This gave rise to a major antagonistic effect on the O/C ratio which was closer to coal for pure materials torrefaction. The other spotlight in this study was to reuse the tar as a heating value additive. After coating it onto the biochar, the higher heating value could be increased by up to 5.4%. Although tar is considered as an unwanted byproduct of torrefaction treatment, the presented data show its high potential to be recycled into useful calorific value enhancer. It also fulfills the scope of waste-to-energy in this study.
dc.language	English
dc.publisher	Elsevier
dc.relation.ispartof	Environmental Technology and Innovation
dc.relation.isbasedon	10.1016/j.eti.2020.101218
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0502 Environmental Science and Management, 0907 Environmental Engineering, 1002 Environmental Biotechnology
dc.title	Synergistic interaction and biochar improvement over co-torrefaction of intermediate waste epoxy resins and fir
dc.type	Journal Article
utslib.citation.volume	21
utslib.for	0502 Environmental Science and Management
utslib.for	0907 Environmental Engineering
utslib.for	1002 Environmental Biotechnology
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 Information, Systems and Modelling
utslib.copyright.status	open_access	*
pubs.consider-herdc	false
dc.date.updated	2022-05-17T03:30:32Z
pubs.publication-status	Published
pubs.volume	21

Abstract:

This study investigated the synergistic effect of co-torrefaction with intermediate waste epoxy resins and fir in a batch-type reactor towards biochar improvement. The synergistic effect ratio was used to judge the interaction between the two materials assisted by statistical tools. The main interaction between the feedstocks was the catalytic reaction and blocking effect. Sodium presented in the intermediate waste had a pronounced catalytic effect on the liquid products during torrefaction. It successfully enhanced the volatile matter emissions and exhibited an antagonistic effect on the solid yield. Different from the catalytic reaction that occurred during short retention time, the blocking effect was more noticeable with a longer duration, showing a synergistic effect on the solid yield. Alternatively, a significantly antagonistic effect was exerted on oxygen content, while the carbon content displayed a converse trend. This gave rise to a major antagonistic effect on the O/C ratio which was closer to coal for pure materials torrefaction. The other spotlight in this study was to reuse the tar as a heating value additive. After coating it onto the biochar, the higher heating value could be increased by up to 5.4%. Although tar is considered as an unwanted byproduct of torrefaction treatment, the presented data show its high potential to be recycled into useful calorific value enhancer. It also fulfills the scope of waste-to-energy in this study.

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http://hdl.handle.net/10453/157453