Re2O7/meso-Al2O3 catalysts with different Re2O7 loadings were prepared by wetness impregnation of Re2O7 on mesoporous alumina.The catalytic performance of the catalysts was also investigated

and compared with Re2O7/γ-Al2O3 catalyst.The results showed that with the increase of Re2O7 loading

the BET surface area and pore volume of the catalysts decreased while the acid amount increased.The metathesis catalyst was prepared by impregnation under the conditions of 60℃

1 h-1 and atmospheric pressure

and the initial conversion of butene was about 54%

by using Re2O7/meso-Al2O3 as the catalyst.The Re2O7/meso-Al2O3 with m(Re2O7)∶m(Al2O3)=0.2 exhibited the best catalytic performance of olefin metathesis among the Re2O7/meso-Al2O3 catalysts.The reaction selectivity of propylene was about 55%

and the life-time of catalyst was 120 h.