The invention discloses a method for producing a clean fuel by adopting
chlorine-containing plastic oil, and belongs to the fields of
environmental protection and energy technologies. The method is characterized by comprising the steps of injecting the
chlorine-containing plastic oil into a
catalytic distillation tower filled with a
molecular sieve /
alumina catalyst for reaction and rectification; performing heat exchange on the
chlorine-containing plastic oil after catalytic
cracking, feeding the chlorine-containing plastic oil after heat exchange into a low-pressure
liquid phase hydrogenation
tower, and performing hydrogenation and dechlorination, wherein the used catalyst is a supported
metal catalyst; feeding the distillate oil after the
liquid phase hydrogenation into a washing
tower, circulating the aqueous phase of the lower layer at the tower bottom, compressing the washed distillate oil of the upper layer, feeding the distillate oil into a hydrofining tower, hydrofining with a
sulfide catalyst, removing monoene compounds through monoene hydrogenation saturation reaction, removing
sulfur,
nitrogen and colloids to obtain mixed
gasoline and diesel oil without peculiar smell and with high quality, distilling to obtain distillate oil of
gasoline and diesel oil, and mixing the heavy oil at the tower bottom and the chlorine-containing plastic oil serving as a
raw material for reacting again. The method has the advantages that the process is simple and the activity and selectivity of the catalysts are high, and has good
economic benefits and industrial application prospect.