Evaluation of Acidic Ionic Liquids as Catalysts for Furfural Production from Eucalyptus nitens Wood

Eucalyptus nitens wood samples were subjected to hydrothermal processing to obtain soluble saccharides from the hemicellulosic fraction. The hemicellulose-derived saccharides were employed as substrates for furfural production in biphasic media made up of water, methyl isobutyl ketone, and one acidi...

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Bibliographic Details
Published in:Molecules (Basel, Switzerland) Switzerland), 2022-07, Vol.27 (13), p.4258
Main Authors: Penín, Lucía, López, Mar, Santos, Valentín, Parajó, Juan Carlos
Format: Article
Language:English
Subjects:
acidic ionic liquid
Acids
Biomass
biphasic system
Carbohydrates
Catalysts
Cellulose
Conversion
Eucalyptus
Eucalyptus nitens
Fractionation
Furfural
Glucose
Hardwoods
Hemicellulose
Ionic liquids
Ketones
Lignin
methyl isobutyl ketone
Polymers
Saccharides
Solvents
Sulfates
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Summary:Eucalyptus nitens wood samples were subjected to hydrothermal processing to obtain soluble saccharides from the hemicellulosic fraction. The hemicellulose-derived saccharides were employed as substrates for furfural production in biphasic media made up of water, methyl isobutyl ketone, and one acidic ionic liquid (1-butyl-3-methylimidazolium hydrogen sulfate or 1-(3-sulfopropyl)-3-methylimidazolium hydrogen sulfate). The reactions were carried out in a microwave-heated reactor to assess the effects of the most influential variables. Under selected operational conditions, the molar conversions of the precursors into furfural were within the range of 77–86%. The catalysts conserved their activity after reutilization in five consecutive reaction cycles.
ISSN:1420-3049
1420-3049
DOI:10.3390/molecules27134258