H2 production from catalytic steam reforming of n-propanol over ruthenium and ruthenium-nickel bimetallic catalysts supported on ceria-alumina oxides with different ceria loadings

摘要: Abstract Catalytic steam reforming of n-propanol was investigated over ruthenium and ruthenium-nickel bimetallic catalysts supported on ceria-alumina oxides with different ceria loading (0–10% CeO2 wt/wt). Catalysts were characterized by BET surface area analysis, powder X-ray diffraction, temperature programmed reduction energy dispersive analysis scanning electron microscopy. Steam activity tested in a fixed bed tubular flow reactor at 450 or 500 °C using feed n-propanol/water mixture molar ratio 1:12 constant liquid rate 0.1 ml min−1. The effluent gas monitored GC/TCD the evolution hydrogen formation product distribution as function time studied. Calcination air after impregnation RuCl3 found to reduce dispersion lower activity. Both high metal sufficient promotion are essential for active stable performance. Otherwise, dehydration reaction dominates catalyst deactivation became severe. 3 wt% Ru, 10 wt% Ni 3 10 wt % be very reactive both 500 °C.