Development of a FCC gasoline olefin-reducing catalyst

A highly-active olefin-reducing catalyst was prepared by impregnation using γ-Al_2O_3 as the carrier and transitional metals as the active components. Influences of temperature, pressure and space velocity on olefin-reducing result were investigated for treatment of FCC gasoline. The results showed that olefin content in FCC gasoline (volumetric fraction) was brought down from 60% to less than 10%, which is far below the national standard, with octane number up to the standard.