Authors: A.N. Zaostrovsky, A.V. Petrushina,

Title of the article: Petrographic composition of the Balakhonskaya and Kolchuginskaya series of Kuzbass coals

Year: 2025, Issue: 5, Pages: 91-100

Branch of knowledge: 2.6.12. Chemical technology of fuel and high-energy substances

Index UDK: 662.741

DOI: 10.26730/1999-4125-2025-5-91-100

Abstract: Petrographic composition, which has a significant impact on the chemical-technological and physical properties of coals, must be taken into account in all areas of energy and non-fuel use of coals, during their enrichment and coking. The main petrographic components in coals of the Kolchuginskaya and Balakhonskaya series of Kuzbass are vitrinite and inertinite. Their total content is almost the same. For coals of the Kolchuginskaya series it is on average 91%, and for the Balakhonskaya series - 90%. Coals of the Kolchuginskaya series, compared to the Balakhonskaya, are less metamorphosed. These are mainly gas coals. The degree of metamorphism of coals of the Balakhonskaya series varies from gas to lean, and in some cases - to anthracite. The degree of metamorphism was significantly influenced by geological age: for the Kolchugin series it is estimated at 250 million years, and for the Balakhon series at 270-330 million years. This also explains the deeper occurrence of the Balakhon series seams compared to the Kolchugin series, as well as deeper transformations of the organic matter of coals, accompanied by a decrease in the yield of volatile substances due to the formation of a thermally stable organic mass. In general, other things being equal (stage of metamorphism and degree of reduction), the coals of the Kolchugin series, compared to the Balakhon series, are characterized by higher sintering capacity, increased hydrogen content, high heat of combustion, etc. due to the increased vitrinite content. The difference in the properties of vitrinite in Kuznetsk coals, various types of vitrinite association with mineral coponents must be taken into account mainly when compiling coking batches.

Key words: coal petrographic analysis of coal vitrinite reflectance index reflectogram Balakhonskaya series Kolchuginskaya series

Receiving date: 04.04.2025

Approval date: 22.09.2025

Publication date: 23.10.2025

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