Аннотация:In this work PVC pyrolysis in Ar alone or in the presence of sorbents (CaO+CaCO3, La2O3, and egg shell) was investigated in the set for synchronic thermal analysis STA 449C Jupiter (Netzsch, Germany), by simultaneous collection of TG, DSC and MS data. Then the solid products of pyrolysis were heated in O2/Ar mixture in the same experimental set to check the content of burnable components.