Articles producció científica> Enginyeria Química

Impact of cellulose treatment with hydrotalcites in hydrothermal catalytic conversion

  • Identification data

    Identifier: imarina:4079807
    Authors:
    Guarin, CarlosGavila, LlorencConstanti, MagdaMedina, Francesc
    Abstract:
    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.
  • Others:

    Author, as appears in the article.: Guarin, Carlos; Gavila, Llorenc; Constanti, Magda; Medina, Francesc;
    Department: Enginyeria Química
    URV's Author/s: Constantí Garriga, Magdalena / Medina Cabello, Francisco
    Keywords: Microwave Lactic acid Hydrotalcites Cellulose
    Abstract: 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.
    Thematic Areas: 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
    Author's mail: magdalena.constanti@urv.cat francesc.medina@urv.cat
    Author identifier: 0000-0002-3547-4199 0000-0002-3111-1542
    Last page: 91
    Record's date: 2024-09-07
    Journal volume: 179
    Papper version: info:eu-repo/semantics/acceptedVersion
    Link to the original source: https://www.sciencedirect.com/science/article/pii/S0009250918300149
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Chemical Engineering Science. 179 83-91
    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
    Article's DOI: 10.1016/j.ces.2018.01.014
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2018
    First page: 83
    Publication Type: Journal Publications
  • Keywords:

    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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