The invention discloses a method for producing
gasoline and diesel oil by mixing and refining plastic oil,
coal tar,
ethylene tar or tire oil, and belongs to the field fields of
environmental protection and energy. The method is characterized in that the waste plastic oil and the
coal tar, the
ethylene tar or the tire oil are mixed in a ratio of 1:(0.1-1.1) to form a
raw material, and the
raw material is catalytically distilled and hydrofined into the high-quality
gasoline and diesel oil; and the method comprises the following steps of: fractionating the raw oil into light components and heavy components at the temperature of 300 DEG C through a pre-
fractionation tower, directly performing hydrofining reaction on the light components, performing
catalytic distillation cracking on the heavy components, regulating the fraction proportion of the
gasoline and the diesel oil to reduce the
colloid content of the fraction, performing hydrofining reaction, reducing the
sulfur and
nitrogen content of the oil, regulating the
octane value and the
acid value, distilling the obtained distillate oil, and thus obtaining high-quality gasoline, diesel oil and the like. By the method, the conversion rate of balanced reaction and the selectivity of
consecutive reaction are improved, the coking quantity is greatly reduced, the consumption is reduced, energy is saved, the service life of a catalyst is prolonged, the flow is simple and the investment is saved.