Articles producció científica> Enginyeria Química

Impact of cellulose treatment with hydrotalcites in hydrothermal catalytic conversion

  • Dades identificatives

    Identificador: imarina:4079807
    Autors:
    Guarin, CarlosGavila, LlorencConstanti, MagdaMedina, Francesc
    Resum:
    The depletion of oil reserves pushes the development of platform chemicals from biomass, as an alternative for the sustainable progress of the chemical industry. Cellulose, which is the main component of biomass, is widely studied for its conversion into value-added chemicals. However, due to its recalcitrant nature, hydrolysis of cellulose with solid alkali catalysts still remains a challenge. Thus, the conversion of cellulose using hydrotalcites as catalyst was investigated. For this purpose, hydrotalcites were deposited on cellulose fibers and their catalytic behavior was tested at 180 °C, for 1 h, using microwave reactor (300 W). Hydrotalcites proved to efficiently convert cellulose into value-added products such as lactic, acetic, formic and glycolic acids. Catalysts were characterized by X-Ray diffraction, Fourier transform infrared spectroscopy, environmental scanning electron microscopy and BET surface area analysis. The best conversion yield of up to 30% was obtained over calcined hydrotalcites at 400 °C. The basic properties of the hydrotalcite materials have an important effect on the activity. Hence, in this study hydrotalcites are presented as a promising catalyst for cellulose hydrolysis.
  • Altres:

    Autor segons l'article: Guarin, Carlos; Gavila, Llorenc; Constanti, Magda; Medina, Francesc;
    Departament: Enginyeria Química
    Autor/s de la URV: Constantí Garriga, Magdalena / Medina Cabello, Francisco
    Paraules clau: Microwave Lactic acid Hydrotalcites Cellulose
    Resum: The depletion of oil reserves pushes the development of platform chemicals from biomass, as an alternative for the sustainable progress of the chemical industry. Cellulose, which is the main component of biomass, is widely studied for its conversion into value-added chemicals. However, due to its recalcitrant nature, hydrolysis of cellulose with solid alkali catalysts still remains a challenge. Thus, the conversion of cellulose using hydrotalcites as catalyst was investigated. For this purpose, hydrotalcites were deposited on cellulose fibers and their catalytic behavior was tested at 180 °C, for 1 h, using microwave reactor (300 W). Hydrotalcites proved to efficiently convert cellulose into value-added products such as lactic, acetic, formic and glycolic acids. Catalysts were characterized by X-Ray diffraction, Fourier transform infrared spectroscopy, environmental scanning electron microscopy and BET surface area analysis. The best conversion yield of up to 30% was obtained over calcined hydrotalcites at 400 °C. The basic properties of the hydrotalcite materials have an important effect on the activity. Hence, in this study hydrotalcites are presented as a promising catalyst for cellulose hydrolysis.
    Àrees temàtiques: Química Interdisciplinar Industrial and manufacturing engineering Geociências General chemistry General chemical engineering Farmacia Engineering, chemical Engenharias iv Engenharias iii Engenharias ii Engenharias i Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciência de alimentos Chemistry (miscellaneous) Chemistry (all) Chemical engineering (miscellaneous) Chemical engineering (all) Biotecnología Astronomia / física Applied mathematics
    ISSN: 00092509
    Adreça de correu electrònic de l'autor: magdalena.constanti@urv.cat francesc.medina@urv.cat
    Identificador de l'autor: 0000-0002-3547-4199 0000-0002-3111-1542
    Pàgina final: 91
    Data d'alta del registre: 2024-09-07
    Volum de revista: 179
    Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
    Enllaç font original: https://www.sciencedirect.com/science/article/pii/S0009250918300149
    URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referència a l'article segons font original: Chemical Engineering Science. 179 83-91
    Referència de l'ítem segons les normes APA: Guarin, Carlos; Gavila, Llorenc; Constanti, Magda; Medina, Francesc; (2018). Impact of cellulose treatment with hydrotalcites in hydrothermal catalytic conversion. Chemical Engineering Science, 179(), 83-91. DOI: 10.1016/j.ces.2018.01.014
    DOI de l'article: 10.1016/j.ces.2018.01.014
    Entitat: Universitat Rovira i Virgili
    Any de publicació de la revista: 2018
    Pàgina inicial: 83
    Tipus de publicació: Journal Publications
  • Paraules clau:

    Applied Mathematics,Chemical Engineering (Miscellaneous),Chemistry (Miscellaneous),Engineering, Chemical,Industrial and Manufacturing Engineering
    Microwave
    Lactic acid
    Hydrotalcites
    Cellulose
    Química
    Interdisciplinar
    Industrial and manufacturing engineering
    Geociências
    General chemistry
    General chemical engineering
    Farmacia
    Engineering, chemical
    Engenharias iv
    Engenharias iii
    Engenharias ii
    Engenharias i
    Ciências biológicas iii
    Ciências biológicas ii
    Ciências biológicas i
    Ciência de alimentos
    Chemistry (miscellaneous)
    Chemistry (all)
    Chemical engineering (miscellaneous)
    Chemical engineering (all)
    Biotecnología
    Astronomia / física
    Applied mathematics
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