The Continuous Flow Ag/γ-Al2O3 Catalysed Preferential Hydrogenation of Octanal in an Octanal/Octene Mixture
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Ag/γ-Al2O3 catalysts, containing 5 and 25 wt% Ag, were synthesized by the slurry phase impregnation method. They were tested for the liquid phase continuous flow preferential hydrogenation of octanal in a mixture with octene. The catalysts were characterised by XRD, IR, BET, SEM, TEM and NH3-TPD. These catalysts showed strong preference for octanal hydrogenation, irrespective of reaction temperature or silver loading. A maximum octanal conversion of 90% with selectivity towards octanol of 94% was achieved over 25 wt% Ag/γ-Al2O3 at 180 °C with minimal octene conversion (< 3%).
KeywordsSelective hydrogenation Aldehydes Alkenes Silver Alumina
We thank the NRF and SASOL for financial support. We also thank to Dr. N. Prinsloo (SASOL) for valuable discussions and the Electron Microscopy Unit at UKZN (Westville Campus).
- 5.Ma Z, Zaera F (2006) Heterogeneous catalysis by metals, encyclopedia of inorganic chemistry. Wiley, New YorkGoogle Scholar