Articles producció científica> Enginyeria Química

High-yield selective conversion of pretreated milled softwood mixture to glucose by oxalic acid impregnation and microwave-assisted hydrolysis – Application to bio-ethanol production

  • Identification data

    Identifier: imarina:9364897
    Authors:
    Ceaser RMontané DConstantí MMedina F
    Abstract:
    In this study, a deep eutectic solvent pretreated milled softwood mixture was impregnated with oxalic acid before performing a water hydrolysis to obtain glucose using a microwave. Analysis of variance of a central composite design (CCD) showed that both temperature and time were significant parameters to consider when studying the cellulose conversion, glucose yield and glucose selectivity. The optimal conditions were 174 °C and 2 h, which resulted in 27.7% cellulose conversion, 22.4% glucose yield and 81.1% glucose selectivity. Oxalic acid affected the amorphous domains of cellulose at low hydrolysis temperature, while both the amorphous and the crystalline regions were affected at high temperature. Successive treatments of the solid hydrolysis residues resulted in 98.4% cellulose conversion, 79.0% glucose yield and 80.3% selectivity. Bioethanol was produced from the recovered glucose within 24 h with a fermentation efficiency of 42.9%.
  • Others:

    Author, as appears in the article.: Ceaser R; Montané D; Constantí M; Medina F
    Department: Enginyeria Química
    URV's Author/s: Constantí Garriga, Magdalena
    Keywords: Oxalic acid impregnation Optimization approach Milled softwood mixture Microwave-assisted hydrolysis Glucose Bioethanol
    Abstract: In this study, a deep eutectic solvent pretreated milled softwood mixture was impregnated with oxalic acid before performing a water hydrolysis to obtain glucose using a microwave. Analysis of variance of a central composite design (CCD) showed that both temperature and time were significant parameters to consider when studying the cellulose conversion, glucose yield and glucose selectivity. The optimal conditions were 174 °C and 2 h, which resulted in 27.7% cellulose conversion, 22.4% glucose yield and 81.1% glucose selectivity. Oxalic acid affected the amorphous domains of cellulose at low hydrolysis temperature, while both the amorphous and the crystalline regions were affected at high temperature. Successive treatments of the solid hydrolysis residues resulted in 98.4% cellulose conversion, 79.0% glucose yield and 80.3% selectivity. Bioethanol was produced from the recovered glucose within 24 h with a fermentation efficiency of 42.9%.
    Thematic Areas: Zootecnia / recursos pesqueiros Saúde coletiva Química Planejamento urbano e regional / demografia Odontología Nutrição Medicina veterinaria Medicina iii Medicina ii Medicina i Materiais Interdisciplinar Farmacia Ensino Engenharias iv Engenharias iii Engenharias ii Engenharias i Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Biotecnología Biodiversidade Astronomia / física Agronomy and crop science Agronomy Agriculture Agricultural engineering
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Author's mail: magdalena.constanti@urv.cat
    Author identifier: 0000-0002-3547-4199
    Record's date: 2024-03-23
    Papper version: info:eu-repo/semantics/publishedVersion
    Link to the original source: https://www.sciencedirect.com/science/article/pii/S0926669024001638
    Papper original source: Industrial Crops And Products. 210
    APA: Ceaser R; Montané D; Constantí M; Medina F (2024). High-yield selective conversion of pretreated milled softwood mixture to glucose by oxalic acid impregnation and microwave-assisted hydrolysis – Application to bio-ethanol production. Industrial Crops And Products, 210(), -. DOI: 10.1016/j.indcrop.2024.118183
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Article's DOI: 10.1016/j.indcrop.2024.118183
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2024
    Publication Type: Journal Publications
  • Keywords:

    Agricultural Engineering,Agriculture,Agronomy,Agronomy and Crop Science
    Oxalic acid impregnation
    Optimization approach
    Milled softwood mixture
    Microwave-assisted hydrolysis
    Glucose
    Bioethanol
    Zootecnia / recursos pesqueiros
    Saúde coletiva
    Química
    Planejamento urbano e regional / demografia
    Odontología
    Nutrição
    Medicina veterinaria
    Medicina iii
    Medicina ii
    Medicina i
    Materiais
    Interdisciplinar
    Farmacia
    Ensino
    Engenharias iv
    Engenharias iii
    Engenharias ii
    Engenharias i
    Ciências biológicas iii
    Ciências biológicas ii
    Ciências biológicas i
    Ciências ambientais
    Ciências agrárias i
    Ciência de alimentos
    Biotecnología
    Biodiversidade
    Astronomia / física
    Agronomy and crop science
    Agronomy
    Agriculture
    Agricultural engineering
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