Partial Hydrogenation of Benzene to Cyclohexene over Ru-Zn/MCM-41

Figure 1

Partial hydrogenation of benzene over Ru-Zn/MCM-41 with different contents of Zn. Zn content: (a) null; (b) 0.25 wt%; (c) 0.64 wt%; (d) 1 wt%. Reaction conditions: benzene 30 mL (0.338 mol), Ru-based catalyst 0.48 g (Ru 4.7 × 10⁻⁵ mol), 3.4 g ZnSO₄7H₂O in 60 mL H₂O, H₂ 5.5 MPa, and 403 K.

(a)

(b)

(c)

(d)