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Lignin catalytic hydroconversion: an experimental and modeling study

Abstract

The valorization of lignin coming from pulp industry or biorefinery into renewable chemicals is a great challenge to answer to environmental concerns and carbon atom economy. We present here a new reactor system consisting in a semi-opened batch reactor on the gas-phase to carry out the catalytic lignin liquefaction. The interest of this home-build equipment is that light products and water can be continuously removed from the reacting mixture via gaseous phase circulation whereas the hydrogen donor solvent is reintroduced in the reactor via a reflux system. The catalysts tested are among metal sulfides and metals supported systems and thanks to developed analytic tools (-GC, GCxGC, GPC, NMR), the components of the gas and liquid phases were identified and quantified. Those experiments allow us to determine which type of catalyst would be the best candidate to produce aromatics. In addition, for a given catalyst, experimental data will be used to further propose a kinetic model.
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Dates and versions

hal-01586626 , version 1 (13-09-2017)

Identifiers

  • HAL Id : hal-01586626 , version 1

Cite

J. Pu, T. S. Nguyen, D. Laurenti, I. Pitault, M. Tayakout, et al.. Lignin catalytic hydroconversion: an experimental and modeling study. Europacat 2017, Aug 2017, Florence, Italy. ⟨hal-01586626⟩
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