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Hydrodeoxygenation (HDO) of bio-oils obtained from intermediate pyrolysis with hot vapor filtration was investigated over Ru/C and NiCu/Al2O3 catalysts as a function of several parameters: feedstock (beech wood, wheat straw), pyrolysis temperature, catalyst and hydrotreatment temperature. Beech wood was found to be a suitable feedstock for HDO due to its low heteroatom content, whereas the high sulfur...
Hydrodeoxygenation (HDO) of fast pyrolysis oils for fuel and chemical production was investigated in a batch autoclave at 340 °C (8.0 MPa H2 at room temperature) over nickel-based catalysts and Ru/C. The deoxygenation degree was similar over all catalysts, but different H/C ratios were observed in the upgraded oils, in line with the corresponding H2 consumption. The highest values were found for Ru/C...
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