Thermal Decomposition Processes in Relation to the Type of Organic Matter, Mineral and Maceral Composition of Menilite Shales

The aim of the research presented in this article was to analyse processes source-rock decomposition, including kinetic parameters pyrolysis, relation type organic matter and its maturity. examined source rocks were Menilite shales from several units within Flysch Carpathians (Poland). samples analysed with use thermal methods, Rock-Eval thermogravimetry coupled an FTIR detector. Kinetic determined model-free integral isoconversion method Kissinger–Akahira–Sunose. observed gas evolution indicates two stages decomposition for some samples. main stage pyrolysis takes place temperature range 300 500 °C, while secondary—cracking—takes 650 °C. Using FTIR, we detected vibrations derived N-H groups, which provide information on presence nitrogen matter, indicate a low maturity level. C=C stretching aromatic hydrocarbons prove higher matter. have different activation energies, are related mineral compositions. does not decisive influence parameters. A high share carbonates rock increases value apparent energy. bituminite maceral components reduces