Advanced biofuels and Renewable energy

In this session, the trends in Bioresources and technology will be discussed. An isolated, solvent-extracted lignin from candlenut (Aleurites moluccana) biomass was subjected to catalytic depolymerization in the presence of supercritical CH3OH (Methanol or wood alcohol), using a range of porous metal oxides derived from hydrotalcite-like precursors. The most potent catalysts in terms of lignin conversion to methanol-soluble products, without char formation, were based on copper in combination with other dopants based on relatively earth-abundant metals. Nearly complete conversion of lignin to bio-oil composed of monomers and low-mass oligomers with high aromatic content was obtained in 6 h at 309 °C using a catalyst based on a Cu- and La-doped hydrotalcite-like precursor. Product mixtures were characterized by NMR spectroscopy, gel permeation chromatography, and GC–MS.

  • Lignin
  • Catalysis
  • Porous metal oxides
  • Bio-oil
  • Supercritical solvents

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