Production of 2-methyl furan, a promising 2nd generation biofuel, by the vapor phase hydrodeoxygenation of biomass-derived furfural over TiO2 supported Cu Ni bimetallic catalysts

Advancements in the Heterogeneous Catalytic Hydrogenation of Furfural to Downstream Products

“…However, in most cases, the synthesis of 2‐MF from FF is difficult due to overhydrogenation of the furan ring on monometallic Ni‐based catalysts, but Jaswal et al. reported that TiO 2 supported 10 %Cu10 %Ni catalyst afforded a 2‐MF yield of 84.5 % at 200°C under 2 MPa H 2 after 6 h [10a] . This was attributed to the strong interaction between NiO and CuO species in the catalyst, which resulted in an increase in the specific surface area and porosity of the bimetallic catalyst and improved the activity of FF hydrodeoxygenation, but the addition of excessive Ni leads to the overhydrogenation of FF to THFA and 2‐MTHF byproducts.…”

Continuous Furfural Hydrogenolysis into 2-Methylfuran and 2-Methyltetrahydrofuran over Cu/γ–Al2O3 with ReOx and WOx as Catalyst Boosters

“…Subsequently, 2-MTHF is generated through the ring hydrogenation of 2-MF. Notably, bimetallic and trimetallic catalysts such as Cu–Re, , Ni–Co, Ni–Cu, − Cu–Fe, Co–Zn–Al, Co–Mo, Cu–Pd, and Ni–Cu–Re catalysts exhibit promising activity for the production of 2-MF and/or 2-MTHF via simultaneous FAL hydrogenolysis and ring hydrogenation in a single step, surpassing the reactivity of monometallic catalysts such as Ni, Cu, Co, and Re. Research indicates that the combination of oxophilic or oxygen vacancy-rich sites with metallic sites enhances the effectiveness of FAL hydrogenolysis into 2-MF and 2-MTHF products. ,,, This synergy arises from the ability of high oxygen vacancies within ReO x , CoO x , CuO x , MoO x , and FeO x elements to break C–O bonds, along with H 2 molecule dissociation into H atoms over the metallic sites of Ni, Cu, and Co species.…”