Reference : Investigating the factors for fermentative biohydrogen improvement: original bioreact...
Scientific congresses and symposiums : Paper published in a book
Life sciences : Biotechnology
Life sciences : Environmental sciences & ecology
Engineering, computing & technology : Chemical engineering
http://hdl.handle.net/2268/125499
Investigating the factors for fermentative biohydrogen improvement: original bioreactors design and hydrogen partial pressure effect
English
[fr] Etude des facteurs améliorant la production de bio-hydrogène: design de nouveaux bioréacteurs et effet de la pression partielle
Beckers, Laurent mailto [Université de Liège - ULg > Département des sciences de la vie > Biochimie et microbiologie industrielles >]
Hiligsmann, Serge mailto [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 mailto [Université de Liège - ULg > Département des sciences de la vie > Biochimie et microbiologie industrielles >]
5-Jun-2012
WHEC 2012, Toronto June 3rd - 7th
Yes
Yes
International
18th World Hydrogen Energy Conference (WHEC)
03 juin 2012 - 07 juin 2012
International Association for Hydrogen Energy (IAHE)
Toronto
Canada
[en] biohydrogen ; bioreactor design ; hydrogen partial pressure
[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.
Centre Wallon de Biologie Industrielle - CWBI
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
Researchers ; Professionals ; General public
http://hdl.handle.net/2268/125499

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