Waste plastic oilification reduction system

A waste plastic oilification reduction system that produces recycled oil by pyrolyzing waste plastic through heating and condensing produced decomposition gas, the system comprising:

• a preprocess unit that plasticizes and discharges the waste plastic;
• a main pyrolysis process unit having a main pyrolysis tank in which the plasticized waste plastic from the preprocess unit is housed and a heating section that heats the main pyrolysis tank, and being configured to pyrolyze the waste plastic to produce decomposition gas;
• a main condensation process unit including a main condensing section that has a main condensation tank to which the decomposition gas in the main pyrolysis process unit is supplied and a cooling section that cools the main condensation tank, and is configured to condense the decomposition gas to produce recycled oil;
• a sub-pyrolysis process unit having a sub-pyrolysis tank to which a residual gas component remaining in the main condensation tank is supplied and a heating section that heat the sub-pyrolysis tank, and being configured to heat the residual gas component to produce re-decomposition gas;
• a sub-condensation process unit including a sub-condensing section that has a sub-condensation tank to which the re-decomposition gas produced by the sub-pyrolysis process unit is supplied and a cooling section that cools the sub-condensation tank, and is configured to condense the re-decomposition gas to produce recycled oil;
• and an oil storage section that stores the recycled oil supplied from the main condensing section and the recycled oil supplied from the sub-condensing section.