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    Título
    One-pot catalytic hydrolysis/hydrogenation of cellobiose into hexitols over Ru/Al-MCM-48
    Autor
    Romero, Alberto
    Díaz, J.A.
    Nieto Márquez, Antonio
    Essayem, Nadine
    Alonso Sánchez, Gloria EstherAutoridad UVA Orcid
    Pinel, Catherine
    Año del Documento
    2018
    Editorial
    Elsevier
    Documento Fuente
    Microporous and Mesoporous Materials, (2018) 271, p. 186-195.
    Resumen
    The simultaneous catalytic hydrolysis and hydrogenation of cellobiose, as a model constituent of biomass has been studied over Ru/Al-MCM-48. The catalyst, presenting both acidic and hydrogenating functions has been synthesized and characterized by means of N2 adsorption-desorption, SAXS, H2-TPR, XRD, TEM and NH3-TPD. A kinetic model is proposed, and possible reaction pathways and key intermediate compounds of conversion of cellobiose to hexitols are discussed. In the kinetic study the effects of pressure, temperature and time on the onepot reaction were evaluated. A maximum yield around 91% of hexitols was achieved at 180 °C, 5 MPa of H2 and 7 min, where sorbitol was the main compound in the final product with 82% yield. Cellobitol was the main reaction intermediate. Temperatures in the range of 140–180 °C and pressures in the range of 3–5 MPa of H2 were studied and it was concluded that higher temperatures and pressures had a positive effect in order to maximize the production of hexitols. The developed kinetic model predicted with high accuracy the concentration of the different compounds involved in the proposed reaction pathway and served to calculate the reaction rate constant and activation energy values for the different steps of the catalytic process.
    Revisión por pares
    SI
    DOI
    10.1016/j.micromeso.2018.06.003
    Patrocinador
    Este trabajo forma parte del proyecto de investigación: CTQ2015- 64892-R (MINECO/FEDER)
    Version del Editor
    https://www.sciencedirect.com/science/article/pii/S1387181118303135
    Idioma
    eng
    URI
    http://uvadoc.uva.es/handle/10324/35109
    Derechos
    openAccess
    Aparece en las colecciones
    • BioEcoUVa - Artículos de revista [187]
    • IPP - Artículos de revista [28]
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    Nombre:
    MICMAT-D-18-00659R1_open.pdf
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    1.559Mb
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