Abstract polymers are finding extensive application in our day to day life. the low density, high strength to weight ratio, ease of processing etc. make them attractive over other conventional materials. the various fields of applications of polymers includes different sectors such as structural and non-structural, automobile, medical, aerospace etc. extensive use results in accumulation of waste plastics. the safe disposal of waste plastics is a major problem faced by the polymer industry. the combustion of polymers can release so many toxic gases to the atmosphere and can lead to major environmental hazards. since crude oil is the starting material for the production of plastic, the reverse processing of plastic back to crude oil is an innovative method for better disposal of plastics. waste plastics are heated in a reactor at a temperature of about 350- 450℃provided with an inert atmosphere. the waste plastics used include, polyethylene (pe), polypropylene (pp), and polystyrene (ps). the long chain molecules of these plastics is first broken into shorter chain molecules in the reactor and then broken into small molecules in the catalytic cracker. the final product is mixed oil that consists of gasoline, diesel oil, kerosene and the like. the machine and process for making oil are totally based on environment-friendly concept. plastics suitable for converting into oil are pp (garbage bag, cookie bag, cd case, etc.), pe (vinyl bag, medical product, cap of pet bottle etc.) and ps (cup noodle bowl, lunch box, styrofoam etc.).