DEPOLYMERIZATION OP WASTE RUBBER AND THERMOPLASTICS INCLUDING PVC OR PET INTO HYDROCARBON FUELS

摘要

This invention provides a process of depolymerization of rubber waste, plastic waste including PET, PVC, waste oil, foam and synthetic fabric into hydrocarbon fuels. According to this process, rubber waste, plastic waste and other thermoplastic waste are physically disintegrated and then subjected to progressive heating to temperature below 500 deg C. near to atmospehrie pressure together with a catalyst comprising at least one metal oxide and at least one metal silicate and an additive agent comprising of at least one ammonium compound. At least one sulphate compound and at least one nitrate compound. Mixture of catalyst in the proportion below 4 w/w an additive agent in the proportion below 10 w/w of input plastic waste is used. The process of the invention enables depolymerization at considerably lower temperature than existing processes ans allows depolymerization of a wide spectrum of thermoplastic materials "such" as PET/PVC, eliminating formation of dioxins/toxic gases and terepthalic acid.