Insights into the reaction pathway of hydrodeoxygenation of dibenzofuran over MgO supported noble-metals catalysts

Deactivation and Regeneration Study of a Co-Promoted MoO3 Catalyst in Hydrogenolysis of Dibenzofuran

“…The addition of Co could promote the reduction of Mo 6+ to Mo 5+ species as confirmed by XPS and increase the acidic CoMoO 4 as proved by XRD and TPD, which may be the reasons for the different activation energy. The E a values were similar to those in our previous report …”

NiMoS on alumina-USY zeolites for hydrotreating lignin dimers: effect of support acidity and cleavage of C–C bonds

“…60 Also, similar product formation was reported for HDO of DBF using a Pt based catalyst over various acid-base supports. [61][62][63][64] For the Y-based catalysts, the dehydration reaction is strongly favoured over DDO resulting in a high yield of DBF which is over 44%, compared to 23% with NiMoA (Table 3). As Fig.…”

Highly Selective Hydrodeoxygenation of Dibenzofuran into Bicyclohexane over Hierarchical Pt/ZSM-5 Catalysts

“…Unfortunately, these catalysts are gradually deactivated during the reaction because of the oxidation of the active phase, resulting in product contamination. , Therefore, it is indispensable to explore new and efficient HDO catalysts, such as noble metals, , metal nitrides, , metal carbides, , and transition metal phosphides. , Noble metals catalysts, including Pt, Ir, Ru, Pd, Pt–Pd, and Pd–Fe, have exhibited much better hydrogenation performance than other catalysts and hence are very promising for HDO of bio-oils. Zhang et al discovered that Pt/MgO had better catalytic activity than that of Ru/MgO and Pd/MgO in the HDO of DBF, whereas the selectivity to bicyclohexane (BCH) was very low owing to the weak acid of MgO. Plata et al also studied the reaction on the bimetallic Pt–Mo/SiO 2 and Pd–Mo/SiO 2 catalysts and found that the selectivity of oxygen-free products was improved.…”

“…20,21 Noble metals catalysts, including Pt, Ir, Ru, Pd, Pt−Pd, and Pd−Fe, have exhibited much better hydrogenation performance than other catalysts and hence are very promising for HDO of bio-oils. Zhang et al 22 discovered that Pt/MgO had better catalytic activity than that of Ru/MgO and Pd/MgO in the HDO of DBF, whereas the selectivity to bicyclohexane (BCH) was very low owing to the weak acid of MgO. Plata et al 23 also studied the reaction on the bimetallic Pt−Mo/SiO 2 and Pd−Mo/SiO 2 catalysts and found that the selectivity of oxygen-free products was improved.…”