Chemical structure of coals of Vorkuta region and hypercoals by the data of analytic pyrolysis

This paper assumes the study of the structure of the organic mass of coals in the Vorkuta region and its comparison with the structure of the hypercoals and organic matter of the residue obtained from them by the methods of thermogravimetric analysis (TGA) and pyrolysis-chromatography-mass spectrometry. Judging by the TGA data, the largest weight loss at lower temperatures is typical for hypercoals. We found that the ratio of aliphatic and aromatic components of the pyrolyzate contents was not the same for coals and hypercoals. The organic substance of the hypercoals produces more phenanthrenes in pyrolysis compared to naphthalenes and n-alkanes than the original coal and residue, and for the organic matter of the residue, the greatest ratio of n-alkanes / phenanthrenes in pyrolysis products is characteristic.