The present invention discloses a high
octane number
gasoline production method, which is used for
processing catalytic
diesel fuel so as to produce the high
octane number
gasoline distillate, wherein the process mainly adopts a reaction
distillation tower and a
hydrogen circulation
system, the stripping section of the reaction
distillation tower adopts a hydrocracking catalyst as a filler, the rectification section is provided with the rectification
tower plate, the tower plate is provided with an
isomerization catalyst, the tower bottom oil is circulated to the material inlet of the tower, a
hydrogen circulation
heating furnace is arranged, the heated
hydrogen gas enters the bottom portion of the tower, the
gasoline distillate is obtained from the top of the tower, and a small amount (less than 2%) of the
diesel fuel distillate is periodically discharged from the bottom of the tower. According to the method of the present invention, the characteristics of the hydrocracking and the reaction
distillation process are completely utilized, such that the secondary
cracking reaction of the light distillate is reduced, the liquid yield is increased, and the gasoline distillate yield is more than 90%. With the method of the present invention, the catalytic
diesel fuel is completely catalyzed, the
octane number of the produced is high, and compared with the conventional
hydrogenation process, the method of the present invention has characteristics of simple process and energy saving.