2026-06-29T21:06:37Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/91822024-05-27T07:04:59Zcom_10259_4244com_10259_5086com_10259_2604col_10259_4245
Repositorio Institucional de la Universidad de Burgos
author
Bermejo-López, A.
author
Illera Gigante, Alba Ester
author
Melgosa Gómez, Rodrigo
author
Beltrán Calvo, Sagrario
author
Sanz Díez, Mª Teresa
2024-05-25T15:15:27Z
2024-05-25T15:15:27Z
2024-04-30
1935-5130
http://hdl.handle.net/10259/9182
10.1007/s11947-024-03416-x
1935-5149
Lanthanides were tested (Ce3+, Er3+, and Yb3+) as catalysts to produce lactic acid (LA) from the monosaccharides present in corn stover (glucose, xylose, and arabinose) resulting in ytterbium being the most active. A MW-heated system led to similar LA yield as a conventionally heated pressurized system. The maximum value of LA yield was 40% at 240 °C after 20 min of isothermal treatment regardless the starting monosaccharides, which allowed to propose a similar LA production route based on the products profile determined along time for the three monosaccharides. Temperature and time determined the product profile, observing furfural degradation at severity factors higher than 3.5, while values higher than 5.5 were needed to observe LA degradation. By increasing temperature, catalyst solubility decreased, increasing its presence in the solid residue after treatment. Xylan conversion to LA was similar as for xylose, but lower yield was obtained from microcrystalline cellulose. Corn stover presented more amorphous regions leading to higher hydrolysis yields of its cellulose fraction.
eng
Atribución 4.0 Internacional
Lactic acid
Lignocellulosic biomass
Ytterbium
Subcritical water
Biomass valorisation
Comparative Selective Conversion of Biomass-Derived Mono- and Polysaccharides into Lactic Acid with Lanthanide Lewis Acid Catalysts
info:eu-repo/semantics/article
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URL
https://riubu.ubu.es/bitstream/10259/9182/1/Bermejo-fbt_2024.pdf
File
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3d5ea5dc05a52a4e28186f6676304591
3455818
application/pdf
Bermejo-fbt_2024.pdf