Biorefinery of lignocellulosic biomass from an elm clone Production of fermentable sugars and lignin-derived biochar for energy and environmental applications
Valorization of lignocellulosic feedstock from a Dutch elm disease tolerant Ulmus minor clone was studied as a new biomass resource. Herein, fermentable sugars and activated carbons from the side-stream lignins were produced. For the sugar extraction organosolv and acid hydrolysis pretreatments prio...
| Autores: | , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2019 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/290590 |
| Acceso en línea: | http://hdl.handle.net/10261/290590 |
| Access Level: | acceso abierto |
| Palabra clave: | Energy Elm clone biomass Environment Fermentable sugars Lignin-derived biochar |
| Sumario: | Valorization of lignocellulosic feedstock from a Dutch elm disease tolerant Ulmus minor clone was studied as a new biomass resource. Herein, fermentable sugars and activated carbons from the side-stream lignins were produced. For the sugar extraction organosolv and acid hydrolysis pretreatments prior to enzymatic hydrolysis were compared for the first time for this clone prior to enzymatic hydrolysis; organosolv was more efficient for delignification (49 %), while acid hydrolysis was more efficient at eliminating hemicelluloses (95 %). A high final glucose concentration of 22–23.5 g L−1 was obtained after enzymatic hydrolysis suggesting that this clone can be considered a potential source for glucose-based biofuel production. The side-stream lignins were converted to microporous biochars of high surface area (1220 m2 g−1) and micropore volume (0.42 cm3 g−1). These biochars exhibited excellent properties as electrodes in supercapacitors with a specific capacitance of 118 F g−1 and a high energy density of 14 Wh kg−1 at 7000 W kg−1, while they were also efficient adsorbents in water remediation of model contaminants. |
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