Combination of pyrolysis and hydroliquefaction of CCB-treated wood for energy recovery: Optimization and products characterization

► Pyrolysis and hydroliquefaction were used to convert CCB-treated wood into bio-oil. ► 45% of charcoal, retaining 80% of metals, was produced by pyrolysis at 300 °C. ► Temperature has the greatest influence on the conversion of charcoal into bio-oil. ► By optimizing hydroliquefaction of the charcoal, 82% of bio-oil was produced.