Abstract: In order to produce the China VI compliant gasoline, China University of Petroleum（Beijing），Fuzhou university and PetroChina Lanzhou petrochemical Research Center developed the FCC gasoline hydrodesulfurization GARDES–II technology based on the previous GARDES technology and relative catalysts. The new GARDES-II technology and the catalysts were applied in PetroChina Ningxia Petrochemical Company 1.2 Mt/a FCC gasoline hydrodesulfurization unit. The industrial calibration results showed that the sulfur content of FCC gasoline reduced from 58μg/g to 8.1μg/g, and the olefin volume fraction decreased from 40.8% to 29.8% and the RON loss of gasoline was 1.2. Compared with the GARDES technology, GARDES-II technology showed higher olefin reduction ability.

Key words: gasoline hydrfining, GARDES-II technology, hydrodesulfurization, olefin reduction