Durée :4 ans

Participants :Permanent Staff at LAGEP : E. GAGNIERE, D. EDOUARD, C. JALLUT, JP VALOUR
Non Permanent Staff : Post-doct position (2 years)
External Partners : IRCELyon /// TOTAL Research and Technology /// LGPM EA4038 (Ecole Centrale Paris-Paris Saclays University)

Type : French National Research Agency (ANR)

Aims : The main objective of this project is to develop a flexible process adapted to a wide range of lignins with selective catalysts in order to get mainly aromatics in the liquid effluents for a potential industrial valorization. In order to achieve this goal, the hydroconversion of, at least two different types of lignins, one from pulp industry, and one produced during cellulosic ethanol production, will be studied in addition to the wheat straw lignin used previously. The methodology planned for this project includes a study of the lignin solubility, a catalytic screening, the kinetic modeling of the hydroconversion and the evolution of the batch system into a semi-continuous reactor with further improvements, like for instance, solid injection, continuous gas phase and water removal.

Abstract : Facing the need of energy independance and worldwide environmental concerns, lignocellulosic biomass was identified as one of most powerful carbon resource for biofuels and biochemicals. Lignin which one of the components of lignocellulosic biomass is few valorized at the moment. However lignin is already co-produced in pulp industry and it is the only recognized aromatics renewable source on the earth. In this project, we propose to develop selective lignin catalytic hydroconversion towards aromatic compounds, taking in account our experience in this area. A screening of well-chosen catalysts will be performed in a semi-opened batch reactor and then the technology will be transferred to a continuous process development via conversion kinetic modeling and thermodynamic parameters study.

Duration : 4 ans

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