PetroChina Jinxi Petrochemical Branch Company has applied the MIP technology in its RFCC unit to maximize the light distillate while using the paraffinic gas oil blended with resid and the coker gasoil as the feedstocks.The outcome of the unit operating according to the MIP mode has revealed that the olefin content in the stabilized gasoline could be reduced to less than 35% with its research octane number equivalent to and its motor octane number slightly higher than the octane rating of the FCC naphtha obtained by the former operational mode of the RFCC unit,and the diesel yield could reach over 30 m%.The total liquid yield(LPG+gasoline+diesel)of the unit operating according to the MIP mode was by over 1.5 percentage points higher than that achieved in the former RFCC unit. PetroChina Jinxi Petrochemical Branch Company has applied the MIP technology in its RFCC unit to maximize the light distillate while using the paraffinic gas oil blended with resid and the coker gasoil as the feedstocks.The outcome of the unit operating according to the MIP mode has revealed that the olefin content in the stabilized octane number be reduced to less than 35% with its research octane number equivalent to and its motor octane number slightly higher than the octane rating of the FCC naphthalene obtained by the former operational mode of the RFCC unit, and the The total liquid yield (LPG + gasoline + diesel) of the unit operating according to the MIP mode was over 1.5 percentage points higher than that achieved in the former RFCC unit.