2024-03-29T16:02:31Zhttps://uvadoc.uva.es/oai/requestoai:uvadoc.uva.es:10324/351682021-06-24T07:46:25Zcom_10324_31661com_10324_952com_10324_894com_10324_23040com_10324_954col_10324_31662col_10324_23041
Hydrothermal extraction of hemicellulose: from lab to pilot scale
Gallina, Gianluca
Regidor Alfageme, Enrique
Biasi, Pierdomenico
García Serna, Juan
A flow-through reactor for hemicelluloses extraction with hot pressurized water was scaled with a factor of 73. System performance was evaluated by comparing the temperature profile, extraction yield and kinetics of the two systems, performing experiments at 160 and 170 °C, 11 barg for 90 min, using catalpa wood as raw material. Hemicellulose yields were 33.9% and 38.8% (lab scale 160 °C and 170 °C) and 35.7% and 41.7% (pilot scale 160 °C and 170 °C). The pilot reactor was upgraded by designing a manifold system capable to provide samples with different liquid residence time during the same experiment. Tests at 140, 150, 160 and 170 °C were carried for 90 min. Increasing yields (9.3–40.6%) and decreasing molecular weights (4078–1417 Da) were obtained at increasing the temperature. Biomass/water ratio of 1/27 gave total average concentration of xylose of 0.4 g/L (140 °C) to 1.8 g/L (170 °C).
MINECO and FEDER Funds, Project CTQ2015-64892-R (BioFraHynery)
2019-03-21T11:54:50Z
2019-03-21T11:54:50Z
2018
info:eu-repo/semantics/article
https://doi.org/10.1016/j.biortech.2017.09.155
Bioresource Technology Volume 247, January 2018, Pages 980-991
http://uvadoc.uva.es/handle/10324/35168
spa
https://www.sciencedirect.com/science/article/pii/S0960852417317200?via%3Dihub#ak005
Attribution-NonCommercial-NoDerivatives 4.0 International
info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
application/pdf