Gasoline blending model was developed based on the studies on octane blending model, vapor pressure blending model and percent distilled model, which calculates the gasoline specifications of three grades of gasoline from the information of gasoline blending stocks. 6. 研究了辛烷值调合模型、雷特蒸气压调合模型和馏出温度调合模型,并在此基础上建立了汽油调合单元模型。