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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Gellerstedt, Göran Van Dam, Jan E. G. Gosselink, Richard J. A. Teunissen, Wouter Sanders, Johan P. M. de Jong, Ed Scott, Elinor L. |
| Description | Country affiliation: Netherlands Author Affiliation: Gosselink RJ ( Wageningen University, Food and Biobased Research, Wageningen, The Netherlands. richard.gosselink@wur.nl) |
| 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, 100bar) 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. |
| ISSN | 09608524 |
| Volume Number | 106 |
| e-ISSN | 18732976 |
| Journal | Bioresource Technology |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2012-02-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Acetone Chemistry Carbon Dioxide Hydrocarbons, Aromatic Metabolism Lignin Polymerization Water Phenols Analysis Temperature Triticum Waste Products Wood Journal Article Research Support, Non-u.s. Gov't Discipline Bioresource |
| Content Type | Text |
| Resource Type | Article |
| Subject | Waste Management and Disposal Medicine Environmental Engineering Renewable Energy, Sustainability and the Environment Bioengineering |
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