2024-03-28T08:42:38Zhttps://uvadoc.uva.es/oai/requestoai:uvadoc.uva.es:10324/286872021-06-24T07:44:46Zcom_10324_31661com_10324_952com_10324_894com_10324_23040com_10324_954col_10324_31662col_10324_23041
Hydrothermal fractionation of woody biomass: lignin effect over sugars recovery
Yedro, Florencia Micaela
Cantero Sposetti, Danilo Alberto
Pascual, Marcos
García Serna, Juan
Cocero Alonso, María José
Producción Científica
Subcritical water was employed to fractionate woody biomass into carbohydrates and lignin. Nine urban trees species (hardwood and softwood) from Spain were studied. The experiments were carried out in a semi-continuous reactor at 250 °C for 64 min. The hemicellulose and cellulose recovery yields were between 30% wt. and 80% wt. while the lignin content in the solid product ranged between 32% wt. and 92% wt. It was observed that an increment of solubilized lignin disfavored the hydrolysis of hemicelluloses. It was determined that the maximum extraction of hemicellulose was achieved at 20 min of solid reaction time while the extraction of celluloses not exhibited a maximum value. The hydrolysis of hemicellulose and cellulose would be governed by the hydrolysis kinetic and the polymers accessibility. In addition, the extraction of hemicellulose was negatively affected by the lignin content in the raw material while cellulose hydrolysis was not affected by this parameter.
FEDER and Spanish Economy and Competitiveness Ministry (former Science and Innovation Ministry) Project Reference: CTQ2011-27347, ENE2012-33613 (FracBioFuel), CTQ2013-44143-R and Junta de Castilla y León Project Reference: VA254B11-2 for funding
2018-02-23T08:43:18Z
2018-02-23T08:43:18Z
2015
info:eu-repo/semantics/article
https://doi.org/10.1016/j.biortech.2015.05.004
Bioresource Technology. 191 (2015) 124-132
0960-8524
http://uvadoc.uva.es/handle/10324/28687
124
132
Bioresource Technology
191
eng
https://www.sciencedirect.com/science/article/pii/S0960852415006689
Attribution-NonCommercial-NoDerivatives 4.0 International
info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
application/pdf