Re´sume´-Conversion thermochimique de la lignine en carburants et produits chimiques : une revue -La lignine est une des composantes de la biomasse lignocellulosique potentiellement valorisable comme ressource renouvelable pour la production de carburants ou de produits chimiques. Apre`s se´paration de la matrice lignocellulosique, cette macromole´cule est de nos jours essentiellement utilise´e comme combustible dans l'industrie papetie`re. Outre cette filie`re papetie`re, la production d'e´thanol de seconde ge´ne´ration a`partir de la cellulose aura comme conse´quence la mise a`disponibilite´d'encore plus grandes quantite´s de lignine. De nouvelles applications pourront donc eˆtre propose´es pour l'utilisation de cette bio-ressource. Les diffe´rentes voies thermochimiques : pyrolyse, solvolyse, conversion hydrothermale et hydroconversion envisage´es pour la valorisation de la lignine sont de´crites dans cet article.Abstract -Thermochemical Conversion of Lignin for Fuels and Chemicals: A Review -Lignin is one of the biomass components potentially usable as renewable resource to produce fuels or chemicals. After separation from the lignocellulosic matrix, this macromolecule is nowadays essentially valorized by combustion in paper mills. If second generation ethanol is produced in the future from lignocellulosic biomass, some increasing reserves of lignin will be available in addition to the ones coming from the paper industry. The main thermochemical ways such as pyrolysis, solvolysis, hydrothermal conversion and hydroconversion considered for the valorization of the lignin are reviewed in this article.
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