Selective hydrogenolysis of furfural into fuel-additive 2-methylfuran over a rhenium-promoted copper catalyst

Abstract

The effect of Re promoter on Cu/γ-Al2O3 catalysts with various Cu: Re molar ratios was comprehensively investigated in comparison to the monometallic Cu/γ-Al2O3 and Re/γ-Al2O3 catalysts. The...

Furfural Adsorption and Hydrogenation at the Oxide‐Metal Interface: Evidence of the Support Influence on the Selectivity of Iridium‐Based Catalysts

“…Specifically, the main product for long reaction times in this case is 2‐MF (70.2 %), which is produced by FA hydrogenolysis (while for short reaction times etherification to 2‐(isopropoxy)methyl furan is favoured in agreement with the literature, Figure S4). This is an important result, since there are only a few reported examples of the selective conversion of furfural into 2‐methylfuran in liquid phase and under CTH conditions [14,58–60] . Vlachos et al .…”

“…This is an important result, since there are only a few reported examples of the selective conversion of furfural into 2-methylfuran in liquid phase and under CTH conditions. [14,[58][59][60] Vlachos et al combined isotopic labelling and detailed kinetic studies to demonstrate that a dual active site, tandem mechanism is involved in the catalytic transfer hydrogenation of furfural to 2-methylfuran on a bifunctional Ru/ RuO x /C catalyst. In particular, Lewis acid sites promote the hydrogenation of the aldehydic group of furfural to furfuryl alcohol via an intermolecular hydride transfer, while both metal and Lewis acid sites are required to catalyse the hydrogenolysis of furfuryl alcohol through ring-activation.…”

Continuous flow hydrogenolysis of 5-hydroxymethylfurfural into 2,5-dimethylfuran over alumina-supported nickel–iron alloy catalysts

“…This behavior was also generally observed in the hydrogenolysis reaction in previous studies. 1,[38][39][40] Nevertheless, the higher number of acidic sites in the NiAl catalyst was not only selective for the target 2,5-DMF product but also generated consecutive undesired 2,5-DMTHF product through ring hydrogenation.…”

Enhancing the Hydrodeoxygenation and Isomerization using Re Nanoparticles Decorated on Ni/SAPO‐11 Catalysts for Direct Production of Low‐Cold Flow Diesel from Triglycerides

“…As for the calcined NiRe catalysts, the reduction profiles are similar to that of monometallic Re catalyst, whereas the shift of peak to lower temperature were observed in comparison to the monometallic Ni catalyst. It should be noted that the addition of Re into the Ni species facilitated the reduction behavior of the NiRe system due to the spillover effect from Re to Ni species, which was similar to the CuRe catalysts [17a] …”