ORBi: Jacquet Nicolas - Influence des traitements de steam explosion sur la dégradation thermique des fibres de cellulose

Reference : Influence des traitements de steam explosion sur la dégradation thermique des fibres de...


	Document type :	Scientific journals : Article
	Discipline(s) :	Engineering, computing & technology : Energy
	To cite this reference:	http://hdl.handle.net/2268/106920

Title :	Influence des traitements de steam explosion sur la dégradation thermique des fibres de cellulose
Language :	French
Alternative title :	[en] Thermal degradation of cellulose fiber during steam explosion treatment
Author, co-author :	Jacquet, Nicolas [Université de Liège - ULg > Chimie et bio-industries > Chimie biologique industrielle >]
	Quievy, Nicolas [ > > ]
	Vanderghem, Caroline [Université de Liège - ULg > Chimie et bio-industries > Chimie biologique industrielle >]
	Janas, Sébastien [Université de Liège - ULg > Chimie et bio-industries > Technologie des industries agro-alimentaires >]
	Blecker, Christophe [Université de Liège - ULg > Chimie et bio-industries > Laboratoire des Sciences des aliments et formulation >]
	Wathelet, Bernard [Université de Liège - ULg > Chimie et bio-industries > Chimie biologique industrielle >]
	Devaux [ > > ]
	Paquot, Michel [Université de Liège - ULg > Chimie et bio-industries > Chimie biologique industrielle >]
Publication date :	Dec-2011
Journal title :	Récents Progrès en Génie des Procédés
Publisher :	Société Française de Génie des Procédés
Volume :	101
Special issue title :	Récents Progrès en Génie des Procédés,
Audience :	International
ISSN :	1775-335X
City :	Paris
Country :	France
Keywords :	[fr] Steam explosion ; Cellulose Microcristalline ; Dégradation thermique
Abstract :	[en] The aim of this study is to identify the impact of different steam explosion treatments on the thermal degradation of cellulose fibers. The intensities of the treatments were defined by a severity factor (SF), based on the residence time and the process temperature. The results obtained show that thermal degradation of cellulose fibers is limited when the severity factor value is below 4.0. At higher intensities, determination of thermal degradation products shows a significant increase of the hydroxymethylfurfural (5-HMF) amount when increasing the intensity of the treatment. When the severity factor reached 5.2, TGA analysis shows that the increase of degradation products is coupled to an increase of the char level meaning a strong degradation of the cellulose.
Permalink :	http://hdl.handle.net/2268/106920

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