WASTE-PLASTIC OIL CREATION DEVICE AND OIL CREATION METHOD

摘要

The purpose of the present invention is to prevent clogging in devices or piping by tar or the like and to efficiently obtain a good-quality oil. A waste-plastic oil creation device 1 comprises: a pyrolysis tank 2 that pyrolizes and gasifies a waste plastic; a gas cooler 3 that cools a pyrolysis gas produced by the pyrolysis tank to produce an oil; and a circulation tank 4 that collects produced oil produced by the gas cooler and causes part of the produced oil to circulate to the gas cooler. The waste plastic liquefaction device 1 is characterized in that: the circulation tank 4 comprises a temperature adjustment device 41 for maintaining the temperature of the produced oil in the circulation tank 4 at a prescribed temperature range in the circulation tank 4; the temperature adjustment device 41 includes a cooling pipe 42 that is attached to the circulation tank 4; a centrifugal separator 5 is connected to the circulation tank 4; and the centrifugal separator 5 removes impurities, including water and tar, from the produced oil in the circulation tank 4 and returns the produced oil to the circulation tank 4.