The supported nickel-based catalysts for hydrogenation of benzene to cyclohexane were prepared by incipient wet impregnation method and characterized by XRD,TPR and BET.The effects of the supports,γ-Al2O3 and TiO2,and promoters,La,Ce,Mo and Cu,on catalytic activity of the catalysts were investigated in an integral fixed-bed reactor at different temperatures.The results showed that the activity of Ni/γ-Al2O3 was higher than that of Ni/TiO2,and all four promoters could improve the activity of the catalysts,an...