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The majority of platform chemicals are currentlyprovided through crude oil processes. Nevertheless, the substitution of thecrude oil with biomass should be the ecological aim. Lignin, an aromaticmacromolecule, may play an important role in that exchange, as it is the onlybio based source of aromatic compounds. For instance, it could be a source ofbifunctional aromatic molecules, like the monocyclic compounds catechol orguaiacol, or bifunctional oligomers. However, no process for the production ofaromatics from lignin in technical scale has been established until now. Hence,the focus of this work is to clarify the chemical degradation mechanism underhydrothermal conditions, to liquefy lignin delivering high functional moleculesand to increase the yield and selectivity of the cleavage towards bifunctionalmolecules like catechol. The combination of fast hydrolysis, thermaldegradation reactions and hydrogenation drives the hydrothermal liquefaction;this gives the possibility to narrow down the product spectrum in comparison toother -dry- cleavage methods, towards a higher yield of e.g. catechols.


Lignin Liquefaction, Hydrothermal Cleavage, Chemical Use of Biomass

Cite this paper

Schuler, J. , Hornung, U. , Kruse, A. , Dahmen, N. and Sauer, J. 2017 Hydrothermal Liquefaction of Lignin. Journal of Biomaterials and Nanobiotechnology, 8, 96-108. doi: 10.4236-jbnb.2017.81007.

Autor: Julia Schuler1, Ursel Hornung1, Andrea Kruse2, Nicolaus Dahmen1, Jörg Sauer1

Fuente: http://www.scirp.org/


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