Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 419361
Title Lignin depolymerisation in supercritical carbon dioxide/acetone/water fluid for the production of aromatic chemicals
Author(s) Gosselink, R.J.A.; Teunissen, W.; Dam, J.E.G. van; Jong, E. de; Gellerstedt, G.; Scott, E.L.; Sanders, J.P.M.
Source Bioresource Technology 106 (2012). - ISSN 0960-8524 - p. 173 - 177.
DOI http://dx.doi.org/10.1016/j.biortech.2011.11.121
Department(s) FBR BP Biorefinery & Natural Fibre Technology
FBR Sustainable Chemistry & Technology
Biobased Chemistry and Technology
VLAG
Publication type Refereed Article in a scientific journal
Publication year 2012
Keyword(s) conversion - biomass - solvents - phenols
Abstract Valorisation of lignin plays a key role in further development of lignocellulosic biorefinery processes the production of biofuels and bio-based materials. In the present study, organosolv hardwood and wheat straw lignins were converted in a supercritical fluid consisting of carbon dioxide/acetone/water (300–370 °C, 100 bar) to a phenolic oil consisting of oligomeric fragments and monomeric aromatic compounds with a total yield of 10–12% based on lignin. These yields are similar to the state-of-the-art technologies such as base-catalysed thermal processes applied for lignin depolymerisation. Addition of formic acid increases the yield of monomeric aromatic species by stabilizing aromatic radicals. Supercritical depolymerisation of wheat straw and hardwood lignin yielded monomeric compounds in different compositions with a maximum yield of 2.0% for syringic acid and 3.6% for syringol, respectively. The results of the present study showed that under the applied conditions competition occurred between lignin depolymerisation and recondensation of fragments.
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