Articles producció científica> Enginyeria Química

Hydrolysis of dilute acid-pretreated cellulose under mild hydrothermal conditions

  • Datos identificativos

    Identificador: PC:743
    Handle: http://hdl.handle.net/20.500.11797/PC743
  • Autores:

    Chimentão, R.J.
    Lorente, E.
    Gispert-Guirado, F.
    Medina, F.
    López, F.
  • Otros:

    Autor según el artículo: Chimentão, R.J. Lorente, E. Gispert-Guirado, F. Medina, F. López, F.
    Departamento: Enginyeria Química
    Resumen: The hydrolysis of dilute acid-pretreated cellulose was investigated in a conventional oven and under microwave heating. Two acids - sulfuric and oxalic - were studied. For both hydrothermal conditions (oven and microwave) the resultant total organic carbon (TOC) values obtained by the hydrolysis of the cellulose pretreated with sulfuric acid were higher than those obtained by the hydrolysis of the cellulose pretreated with oxalic acid. However, the dicarboxylic acid exhibited higher hydrolytic efficiency towards glucose. The hydrolysis of cellulose was greatly promoted by microwave heating. The Rietveld method was applied to fit the X-ray patterns of the resultant cellulose after hydrolysis. Oxalic acid preferentially removed the amorphous region of the cellulose and left the crystalline region untouched. On the other hand, sulfuric acid treatment decreased the ordering of the cellulose by partially disrupting its crystalline structure.
    Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 0008-6215
    Página final: 124
    Volumen de revista: 111
    Versión del articulo depositado: info:eu-repo/semantics/acceptedVersion
    Enlace a la fuente original: http://www.sciencedirect.com/science/article/pii/S0144861714003506
    DOI del artículo: 10.1016/j.carbpol.2014.04.001
    Entidad: Universitat Rovira i Virgili.
    Año de publicación de la revista: 2014
    Página inicial: 116