Abstract: The adsorptive desulfurization properties for FCC gasoline of different metal modified molecular sieve adsorbents in grading form by static and dynamic technique were conducted using FCC gasoline as raw material to investigate the effect of adsorbents combination sequence and their ratio. The results indicate that the desulfurization rate of Al-Ti-SBA-15 adsorbent is at least 28% higher than that of the modified Y zeolites. While the CeY/NiY combination exhibits a good desulfurization performance. Its breakthrough curve appears a platform, which indicates a dynamic balance between adsorption and removal of various sulfides and a lower breakthrough rate. And the Cu (I) Y/NiY desulfurization performance ranks the second. The combination of CeY: NiY: Al-Ti-SBA-15 with 1:1:4 (mass ratio) is the best which has the slowest breakthrough rate.

Key words: adsorptive desulfurization, FCC gasoline, multi-component adsorbents, graded technique