ORBi: Beckers Laurent - Investigating the factors for fermentative biohydrogen improvement: original bioreactors design and hydrogen partial pressure effect

Reference : Investigating the factors for fermentative biohydrogen improvement: original bioreactors...


	Document type :	Scientific congresses and symposiums : Paper published in a book
	Discipline(s) :	Life sciences : Biotechnology Life sciences : Environmental sciences & ecology Engineering, computing & technology : Chemical engineering
	To cite this reference:	http://hdl.handle.net/2268/125499

Title :	Investigating the factors for fermentative biohydrogen improvement: original bioreactors design and hydrogen partial pressure effect
Language :	English
Alternative title :	[fr] Etude des facteurs améliorant la production de bio-hydrogène: design de nouveaux bioréacteurs et effet de la pression partielle
Author, co-author :	Beckers, Laurent [Université de Liège - ULg > Département des sciences de la vie > Biochimie et microbiologie industrielles >]
	Hiligsmann, Serge [Université de Liège - ULg > Département des sciences de la vie > Biochimie et microbiologie industrielles >]
	Hamilton, Christopher [Université de Liège - ULg > > Centre Wallon de biologie industrielle >]
	Masset, Julien [ > > ]
	Thonart, Philippe [Université de Liège - ULg > Département des sciences de la vie > Biochimie et microbiologie industrielles >]
Publication date :	5-Jun-2012
Main document title :	WHEC 2012, Toronto June 3rd - 7th
On invitation :	Yes
Audience :	International
Event name :	18th World Hydrogen Energy Conference (WHEC)
Event date :	03 juin 2012 - 07 juin 2012
Event organizer :	International Association for Hydrogen Energy (IAHE)
Event place (city) :	Toronto
Event country :	Canada
Keywords :	[en] biohydrogen ; bioreactor design ; hydrogen partial pressure
Abstract :	[en] The anaerobic production of hydrogen from biomass offers the potential production of usable biogas from a variety of renewable resources. However, in order to produce hydrogen at high yields and production rates the biotechnological process needs to be further optimized and efficient bioreactors must be designed [1]. At the CWBI, a continuous horizontal rotating cylinder bioreactor has been designed and investigated to produce biohydrogen from glucose by the strain Clostridium butyricum [2] at good yields (1,9molH2•molglucose-1) and production rates (48,6mmolH2•Lmilieu-1.molhexose-1•h-1). This reactor has an internal volume of 2.3L and a small working volume (300ml) (fig.1). It enhances the hydrogen production rates (by about three times more than a completely stirred bioreactor) by partially immobilizing the bacteria on the porous support. Moreover, the rotating cylinder design enables efficient H2 gas transfer from the liquid phase increasing hydrogen yields by about 25% compared to a completely stirred bioreactor [3-4]. Other original bioreactors, such as a trickle bed, have been built with the same aim of lowering the hydrogen partial pressure and led to similar results. Our work shows the importance of a good liquid to gas transfers in the biohydrogen-producing reactors to reach higher performances.
Research units :	Centre Wallon de Biologie Industrielle - CWBI
Funders :	Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; Université de Liège - Patrimoine de l'université ; Communauté française de Belgique - CfB
Target :	Researchers ; Professionals ; General public
Permalink :	http://hdl.handle.net/2268/125499

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	File	Commentary	Version	Size	Access
Open access	2011-12-03 WHEC2012 - Abtract V1.doc		Publisher postprint	139.5 kB	View/Open

Additional material(s):

	File	Commentary	Version	Size	Access
Restricted access	2012-05-31 WHEC Toronto - biodisc.pptx		-	4.71 MB	Request copy

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