Conversion of Lignocellulosic Biomass in Biobutanol by a Novel Thermal Process

Conversion of Lignocellulosic Biomass in Biobutanol by a Novel Thermal Process

Maricelly Martinez Xavier Duret Doan Pham Minh Ange Nzihou Jean-Michel Lavoie

Department of Chemical and Biotechnological Engineering, Université de Sherbrooke, Biomass technology laboratory, Canada

Université de Toulouse, IMT Mines Albi, UMR CNRS 5302, Centre RAPSODEE, France

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This work aims at demonstrating the possibility of producing 2-butanol from lignocellulosic biomass through a new thermochemical approach. The production of biobutanol was carried out using different lignocellulosic feedstock through a 3-step process: first the whole lignocellulosic biomass is hydrolyzed under acid catalyst to produce levulinates, then the levulinates go through decarboxylation to produce 2-butanone which is, in a final step, reduced to produce of 2-butanol. The experimental conditions for the first two steps of the process were optimized using the response surface methodology (RSM). The latter could represent an opportunity for the production of economical second-generation butanol without having to go through the classical pathway requiring the production of sugar prior to microbial conversion.


homogeneous and heterogeneous catalyst, Lignocellulosic biomass, levulinates, platform chemicals, pyrolysis, 2-butanol, biofuel


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