Thermal methods for the destruction of solid secondary raw material make it possible to use the energy (fuel) potential of waste and in the case of complex processing to extract from the products of heat treatment substances used in the main or related industries. The process is carried out in thermal reactors. In some cases, during thermal processing, solid waste is subjected to pyrolysis – a high-temperature transformation of organic compounds, accompanied by their destruction and secondary processes. Pyrolysis products are used as liquid and gaseous fuels. Thermal destruction is a proven method used in organic chemistry to study the structure of complex compounds. Basically, knowledge of the composition of the simplest substances formed during thermal decomposition makes it possible to establish the structure of the initial molecule. Thermal destruction is a chain breaking reaction under the influence of thermal energy. For polymeric materials, their thermal stability is of great importance – resistance to the thermal destruction. The heat resistance depends on the chemical structure of the polymers. Carbon- carbon bonds are more resistant to thermal energy. Therefore, carbon chain polymers are more heat resistant than hetero chain ones. To carry out the thermal destruction of pollutants, it is necessary to have the information about their thermal stability. The thermal stability of the pollutant can be estimated from the data of the thermogravimetry (TG) and differential thermal analysis (DTA). With the help of these analyzes, it is possible to estimate the temperature ranges at which the significant destruction of the pollutant begins (for example, by weight loss). The higher the degradation temperature, the more heat-resistant this pollutant is.