Low molecular weight products of kerogen pyrolysis

The results of the study of kerogen by pyrolysis gas chromatography and gas chromatography-mass spectrometry of the off-line pyrolysis products are given. The Middle Volga shales of the Volga-Pechora province and the Domanik bitumenous shale deposits are chosen as the main objects of study. A number of ratios of pyrolysis products of kerogen, the use of which has definite potential for studying the chemical structure of kerogen and the conditions of its formation, is considered. The proposed three-component diagrams showing the ratio of aliphatic hydrocarbons, aromatic hydrocarbons and thiophene derivatives are highly informative in studying the chemical structure and conditions for the formation of kerogen.