Abstract
The feasibility of processing polymer waste, in particular high-pressure polyethylene (HDPE), by catalytic pyrolysis in order to obtain alternative energy sources: synthetic oil, pyrolysis gases and pyrocarbon has been demonstrated and substantiated. The thermal destruction of HDPE waste in a batch plant in the absence of atmospheric oxygen with and without the use of catalysts (Ni/MgO, Fe₂O₃, Ni/CaO, Fe₃O₄, HY, Ascarit) has been investigated. It was found that catalytic pyrolysis in the temperature range to 450°C contributes to an increase in the yield of liquid hydrocarbons, in particular synthetic oil, as well as to an improvement in the qualitative composition of the obtained fractions. It was determined that the use of catalysts contributes to a decrease in the content of the solid residue and an increase in the yield of the gas mixture.