Thermochemical conversion of wood into liquid fuels using pyrolysis is attractive for economicand process efficiency reasons, but requires hydrodeoxygenation to improve heating value and stability.  We have chosen acrolein as a model compound to investigate the mechanism of selective hydrogenation of carbonyl vs. alkene groups, using the reducible oxides WO3 and MoO3, which are highly selective at 50�C toward allyl alcohol and propanol, respectively.[1] We report, for the first time, that allyl alcohol, in a second step over highly reduced WO3 at higher temperatures, undergoes hydrodeoxygenation and coupling to produce 1,5-hexadiene. Thermogravimetric analysis and mass spectrometry of the evolved gases during hydrogen pre-treatment, shows that the active catalyst is a hydrogen bronze with approximate composition HWO2. Our DFT cluster calculations elucidate the role of solid state defect chemistry and the energetics of hydrogenation and C-O bond scission to account for the product distributions found in WO3 and MoO3 reactions.[1] Zegaoui, O.; Hoang-Van, C.  Applied Catalysis A.: General 1997, 164, 91-103

Hydrodeoxygenation of acrolein on reduced MoO<sub>3</sub> and WO<sub>3</sub> catalysts: Model compounds for upgrading of biomass derived feedstocks

239th National Meeting (2010)

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Hydrodeoxygenation of acrolein on reduced MoO3 and WO3 catalysts: Model compounds for upgrading of biomass derived feedstocks

Hydrodeoxygenation of acrolein on reduced MoO₃ and WO₃ catalysts: Model compounds for upgrading of biomass derived feedstocks