Influence of Pt particle size and support type on the aqueous-phase reforming of glycerol

Hydrothermal Stability of Ru/SiO2–C: A Promising Catalyst for Biomass Processing through Liquid-Phase Reactions

“…Among the catalytic supports based on aluminum oxides, such as γ-Al 2 O 3 , rehydration and formation of boehmite takes place between 200 and 250 • C, which generate changes in acidic surface properties affecting the selectivity and stability of catalysts [10,11]. Similar effects have also been observed for δ-Al 2 O 3 -and θ-Al 2 O 3 -supported systems, where catalysts suffer a deactivation in aqueous phase because of the sintering of metal particles [12,13]. Studies of composite supports, such as SiO 2 -Al 2 O 3 ("SIRALOX 30" of SASOL), show that they lose surface area because of pore collapse when they are used in liquid water at 225 • C and 25 bar [14].…”

Progress in the aqueous-phase reforming of different biomass-derived alcohols for hydrogen production

“…Catalysts showed similar activity under the same reaction conditions, and no significant deactivation of the catalysts or formation of higher alkanes could be observed on Pt-based Al 2 O 3 catalysts (Lehnert and Claus, 2008). In contrast, an increase in Pt particle size led to a decrease of the formation of H 2 and CO 2 .…”

“…As the main by-product, the production of glycerol has increased rapidly and its subsequent utilization becomes more important (Pagliaro et al, 2007;Balat and Balat 2010;Huang et al, 2010;Wen et al, 2010). The APR of glycerol for hydrogen production is one attractive approach (Iriondo et al, 2008;Lehnert and Claus, 2008;Wen et al, 2008).…”

The selective oxidation of glycerol over model Au/TiO2 catalysts — The influence of glycerol purity on conversion and product selectivity

“…This is particularly true because of the differences between biomass and petrochemical derived feedstocks in terms of relative purity and homogeneity There have been several attempts (with varying levels of success) to use crude glycerol as a substrate in many catalysed transformations and direct uses of glycerol including the direct glycerol fuel cell [24,25] dehydration to form acrolein [26,27], photo-oxidation [28] and reforming [29]. There have also been attempts at biochemical transformations [30].…”