Abstract: Adopting FCC gasoline selective hydrodesulfurization (RSDS-II) technology developed by Research Institute of Petroleum Processing, an existing 0.3 Mt/a jet fuel hydrofining unit was revamped to a 0.2 Mt/a gasoline hydrotreating unit．Using full-range FCC gasoline as feed and hydrogen once through process, the mass fractions of sulfur and mercaptan in the treated gasoline were less than 100 μg/g and less than 20 μg/g, respectively, which indicated that the blending product could meet the requirements of national emission standard IV for gasoline product, and the RON loss was less than 1 unit.

Key words: catalytic cracking gasoline, selective hydrodesulfurization, hydrogen once through