Abstract: The analysis and comparison of different gasoline production technology routes indicated that in the case of the compulsory implementation of ethanol gasoline in China, the first technical route for the production of qualified ethanol gasoline is the combination process of MIP-S Zorb or MIP-HDS. On the basis of this technology route, new technologies, like the FCC processes for producing gasoline with ultra low olefins, flexible adsorption desulphurization process, conversion of heavy fraction of gasoline to lights one and fine FCC as well are developed. By these processes combination, the olefin in gasoline can be reduced to less than 15% (φ) and RON increased by more than 1.5 points, the yields of isobutane and gasoline are significantly increased. It is expected to form a new technical route for vehicle gasoline production and provide reliable technical guarantee for the production of ethanol gasoline in China.

Key words: vehicle gasoline, gasoline desulfurization, octane number, ethanol gasoline, FCC