Fast furfural formation from xylose using solid acid catalysts assisted by a microwave reactor
The production of furfural (FUR) from xylose was carried out using sulfated zirconia (SZ) on cordierite, alumina on cordierite and commercially-available polymeric solid catalysts (Amberlyst DT and Nafion NR40) to provide insights into the reaction pathways and kinetics for the dehydration of xylose...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2018 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/125796 |
| Acceso en línea: | https://hdl.handle.net/2117/125796 https://dx.doi.org/10.1016/j.fuproc.2018.10.013 |
| Access Level: | acceso abierto |
| Palabra clave: | Alumina Furfural Xylose Amberlyst DT Nafion NR40 Sulfated zirconia Àrees temàtiques de la UPC::Enginyeria química |
| Sumario: | The production of furfural (FUR) from xylose was carried out using sulfated zirconia (SZ) on cordierite, alumina on cordierite and commercially-available polymeric solid catalysts (Amberlyst DT and Nafion NR40) to provide insights into the reaction pathways and kinetics for the dehydration of xylose in aqueous phase. Experiments conducted at three temperatures were investigated (170, 190 and 210°C) in a stirred microwave-assisted batch reactor, which established the optimal conditions to obtain the highest FUR yield as well as extensive and fast xylose conversion. The maximum FUR yields obtained from xylose were 41mol% when using SZ on cordierite in 2min (at 210°C), 43mol% when using alumina on cordierite in 30min (at 210°C) and 48mol% for an auto-catalyzed system in 60min (at 210°C). Based on the experimental results, a reaction mechanism was proposed considering the formation of an intermediate from xylose when solid acid catalysts were added. After five reusability cycles using SZ on cordierite, this catalyst can be regenerated with a similar performance and similar FUR yield on the 6th cycle. |
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