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EUBCE 2025 - Marcelo DOMINE - Novel Sn, Ti, and Nb Containing Mixed Oxides as Catalysts for the Valorization of Biorefinery Aqueous Side Streams

Novel Sn, Ti, and Nb Containing Mixed Oxides as Catalysts for the Valorization of Biorefinery Aqueous Side Streams

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Recent trends on developing intermediate bioenergy carriers and sustainable biofuels

Novel Sn, Ti, and Nb Containing Mixed Oxides as Catalysts for the Valorization of Biorefinery Aqueous Side Streams

Short Introductive summary

The upgrading of oxygenated compounds in aqueous effluents obtained from biomass fast pyrolysis is key to maximize the efficiency in biorefineries. Hereof, new cost-effective water-resistant catalysts are needed for the valorization of these residual streams via aqueous-phase condensation reactions. In this work, novel transition metal mixed oxides containing Sn, Ti, and/or Nb have been prepared via co-precipitation and showed outstanding activity and stability in the condensation of light oxygenates in complex acidic aqueous environments. These pseudo-crystalline rutile-phase catalysts with enhanced textural and acid properties possess remarkably resistance based on their hydrophobic characteristics and low carbon deposition, turning them into promising catalysts under moderate reaction conditions. Moreover, a new strategy where ABE mixtures are used during liquid-liquid separation steps of bio-oils is proposed. This approach allows decreasing water needs and associated costs, light oxygenates are upgraded in “one-pot” into hydrocarbons and aromatics, wherein products are favorably recovered in an organic phase with partition coefficients 85%, which facilitates their application.

Presenter

Moderator portrait

Marcelo DOMINE

Consejo Superior de Investigaciones Científicas, SPAIN

Presenter's biography

Dr. M.E. Domine (Scientific Researcher of CSIC) works at ITQ, UPV-CSIC of Valencia (Spain) in the development of catalytic materials and their application in sustainable chemical processes for biomass-derivatives transformations into fuels and valuable chemicals.

Biographies and Short introductive summaries are supplied directly by presenters and are published here unedited


Co-authors:

A. Fernández-Arroyo Naranjo, Instituto Tecnología Química, Valencia, SPAIN
M.E. Domine, Instituto Tecnología Química, Valencia, SPAIN

Session reference: BP.2.3