The results of a comprehensive study of the process of thermal destruction of household waste and industrial polymeric materials in a mixture with petroleum feedstock at a pilot coking unit are presented. A mixture containing polyethylene, polypropylene, polystyrene and polyethylene terephthalate was used as household polymeric waste. Industrial waste was represented by a mixture of polyethylene and polypropylene. The qualitative and quantitative composition of the resulting products was investigated. It is shown that the involvement of polymer waste in an amount of up to 8% by weight in the raw material of the coking plant will make it possible to efficiently process polymer waste without changing the technological regime and quality of the products obtained. It has been established that the impurities of inorganic components present in the polymer raw material do not affect the coking process.