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<p>The forestry sector presents significant potential for biomass-based biorefineries. Fast pyrolysis of biomass, followed by fractionation of bio-oil into pyrolytic lignin and an aqueous phase, enables the industrial-scale extraction of valuable compounds. This study identifies the most effective biorefinery route to maximize the aqueous phase’s potential for high-value compound production. The aqueous phase, containing catechol, vanillin, and levoglucosan, was characterized, and ethyl acetate was found to be the most efficient solvent for extracting these compounds due to its efficacy and lower environmental impact. Adsorption studies using sodium bentonite clay, activated carbon, and polydivinylbenzene resin showed that the polymeric resin was the most efficient, and scalable option. The aqueous phase contained catechol (2.04&#xa0;g/L), vanillin (0.15&#xa0;g/L), and levoglucosan (15.38&#xa0;g/L). The optimal biorefinery process involved separating compounds based on polarity, resulting in two liquors: one enriched in phenolic compounds and the other in sugars. The polydivinylbenzene resin successfully removed phenolic compounds, eluting sugars. This approach demonstrated an efficient and scalable method for converting forestry residues into high-value chemicals, thereby contributing to a sustainable economy through an integrated biorefinery strategy.</p> Graphical Abstract <p></p>

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Exploiting the Potential of the Aqueous Phase of Bio-Oil in a Biorefinery Platform: Strategies for the Recovery of High-Value-Added Products

  • 期刊论文

  • 发表日期：

    2025年9月22日

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  • Ivana Amorim Dias,
  • Daniel José da Silva,
  • Gabriel Agostini Orso,
  • Washington Luiz Esteves Magalhães,
  • Graciela Inês Bolzon de Muñiz,
  • Beatriz Helena Lameiro Noronha Sales Maia,
  • Maurício de Matos,
  • Pedro Henrique Gonzalez de Cademartori

摘要

The forestry sector presents significant potential for biomass-based biorefineries. Fast pyrolysis of biomass, followed by fractionation of bio-oil into pyrolytic lignin and an aqueous phase, enables the industrial-scale extraction of valuable compounds. This study identifies the most effective biorefinery route to maximize the aqueous phase’s potential for high-value compound production. The aqueous phase, containing catechol, vanillin, and levoglucosan, was characterized, and ethyl acetate was found to be the most efficient solvent for extracting these compounds due to its efficacy and lower environmental impact. Adsorption studies using sodium bentonite clay, activated carbon, and polydivinylbenzene resin showed that the polymeric resin was the most efficient, and scalable option. The aqueous phase contained catechol (2.04 g/L), vanillin (0.15 g/L), and levoglucosan (15.38 g/L). The optimal biorefinery process involved separating compounds based on polarity, resulting in two liquors: one enriched in phenolic compounds and the other in sugars. The polydivinylbenzene resin successfully removed phenolic compounds, eluting sugars. This approach demonstrated an efficient and scalable method for converting forestry residues into high-value chemicals, thereby contributing to a sustainable economy through an integrated biorefinery strategy.

Graphical Abstract