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Updated: May 14, 2026

Pretreatment of Lignocellulosic Biomass with Low-cost Ionic Liquids
Published on: August 10, 2016
Studies on the dissolution of glucose in ionic liquids and extraction using the antisolvent method.
El-Sayed R E Hassan1, Fabrice Mutelet, Steve Pontvianne
1Université de Lorraine, Ecole Nationale Supérieure des Industries Chimiques, Laboratoire Réactions et Génie des Procédés ( UPR CNRS 3349 ), 1 rue Grandville, 54000 Nancy, France.
Ionic liquids can dissolve biomass sugars like d-glucose, and ethanol effectively separates them. This research provides crucial data for renewable fuel and chemical production in biorefineries.
Area of Science:
- Biomass processing
- Ionic liquid applications
- Renewable energy feedstocks
Background:
- Biomass is a renewable nonfood feedstock for biorefineries.
- Ionic liquids are effective solvents and catalysts for biomass processing.
- Limited data exists on phase equilibria of biomass compounds in ionic liquids.
Purpose of the Study:
- To measure the solubility of d-glucose in four ionic liquids.
- To correlate solubility data using thermodynamic models.
- To evaluate glucose extraction from ionic liquids using an antisolvent method.
Main Methods:
- Solubility measurements of d-glucose in ionic liquids (283–373 K).
- Correlation of solubility data with NRTL and UNIQUAC models.
- Antisolvent extraction experiments using ethanol.
Main Results:
- Solubility data for d-glucose in four ionic liquids were obtained and correlated.
- Ethanol was identified as an effective antisolvent for glucose recovery.
- Key parameters influencing extraction efficiency were identified.
Conclusions:
- Ionic liquids show promise for biomass processing.
- Ethanol antisolvent method enables efficient glucose separation from ionic liquids.
- This study provides essential data for designing biorefinery processes.
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