Abstract: In order to meet the requirements of optimizing octane loss in ultra-deep desulfurization process, SINOPEC Research Institute of Petroleum Processing has successfully developed the multifunctional S Zorb sorbent FCAS-MF which is applied in a 1.2 Mt/a S Zorb unit of SINOPEC Changling Refining & Chemical Company. The results show that the multifunctional sorbent FCAS-MF has better activity and stability than the sorbent FCAS-R09. Compared with the original sorbent FCAS-R09, FCAS-MF has better olefin reduction performance and octane number retention ability. Under the conditions of S Zorb process, when the sulfur content of product gasoline was less than 10 μg/g, the RON loss can reduce by 0.3-0.6, and the olefins conversion can increase by 2-3 percentage points.

Key words: S Zorb, multifunctional sorbent, desulfurization activity, octane loss