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Rénal BACKOV: University Professor - Lecturer at the University of Bordeaux. Research carried out at the Paul Pascal research center, UPR-CNRS 8641
INTRODUCTION
Our societies are faced with a growing demand for non-fossil biobased fuels. Biodiesels, obtained by transesterification of triesters, offer a real alternative. Transesterification reactions can be catalyzed by lipase enzymes. We present the synthesis of enzymatic catalysts operating in continuous flow. These biohybrid foams offer numerous advantages, including good enzyme containment, minimized steric bulk, optimized mass transport, and simplicity of synthesis and processing. For biodiesel production on macroporous biohybrid supports, these specific features mean exalted enzymatic activities, combined with remarkable endurances for continuous flow catalysis.
Modern societies are confronted to an increasing requirement of bio-fuels resources not of fossil origin. Biodiesels, obtained by transesterification of trimesters, are offering a real alternative. Transesterification can be catalyzed by enzymes such as lipases. We present the synthesis and use of enzyme-based macrocellular foams operating in continuous flow conditions. These monolithic biohybrid catalysts present several advantages, confinment of the enzymes, low steric hindrance, optimized mass transport, a rather simplicity in regard of the column in-situ synthetic path. Those features, concerning enzyme-based catalyzed transesterification, high enzymatic activity addressed with unprecedented endurance of continuous catalysis.
Heterogeneous catalysis, porous materials, enzymes, biodiesel, integrative chemistry, emulsions
Heterogeneous catalysis, porous materials, enzymes, biodiesel, integrative chemistry, biliquid foams
Field: catalysis
Degree of technology diffusion: Emergence | Growth | Maturity
Technologies involved: Integrative chemistry; complex fluids; sol-gel chemistry; enzymatic biotechnologies
Applications: Heterogeneous catalysis; biofuels
Main French players :
Competitive clusters: Industries et Agro Ressources (AIR) ;
Competence centers: CRPP (Bordeaux); ISM (Bordeaux); LISBP (Toulouse), LCMBA (Nice), Collège de France (Paris)
Manufacturers: Diester Industrie (France)
Other global players: ADM Biodiesel (Germany), Biopetrol Industries (Switzerland)
Contact: [email protected]
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Supported enzymatic biocatalysts for continuous biodiesel production
Context
Bibliography
Patents
Inorganic monoliths obtained by sol-gel chemistry in a confined environment: foams and "macro-imprints" COLIN (A.) and BACKOV (R.) French patent 2003, application no. FR03-03774. International Extension, 2004: PCT/FR04/01811. FR 2852947, WO 2004087610 (Preparation of zeolites with hierarchical structure)
Hybrid macrocellular enzymatic supported catalysts and applications. BRUN (N.), BABEAU-GARCIA (A.),...
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