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

Table 1

Catalytic performance of Ru-Zn/MCM-41 catalysts with different contents of Zn^a.

Zn content (wt%)	(min)	Conv.^b (%)	(%)	(%)
null	35.0	63.3	27.6	17.5
0.25	35.0	23.3	15.0	3.5
0.64	15.0	1.8	45.6	0.82
1.0	10.0	1.0	60.0	0.60

Reaction conditions are the same as those of Figure 1. ^bThe results are provided at the maximum yield of cyclohexene. Conv.:conversion of benzene; : selectivity to cyclohexene; : yield of cyclohexene.