Authors: N.I. Fedorova, E.S. Mikhaylova, O.Yu. Gavriluk, Z.R. Ismagilov

Title of the article: Evaluation of the quality of low-metamorphized coals of the Kuznetsk basin

Year: 2018, Issue: 1, Pages: 158-163

Branch of knowledge: Chemical technology

Index UDK: 662.6:552

DOI: 10.26730/1999-4125-2018-1-158-163

Abstract: Relevance of work: in order to establish a rational direction for the industrial use of coals of various brand names in an industry, it is necessary to assess their chemical and technological potential. In this work, we present the results of a study of the chemical composition and chemical-technological properties of low-metamorphosed coals in the Kuznetsk Basin. For the study, three samples of coals selected at different coal mines of Kuzbass were used: No. 1 – Alex-eevskaya Mine, Krasnogorsky Plate, No. 2 – Kotinskaya Mine, sheet 51, No. 3 – Kirov Mine, the Polenovsky layer. Reseacrh methods: technical, elemental, petrographic analyzes, chemical composition of ash, thermogravi-metry, yield of products of semi-coking. Results: Using a complex of chemical and physicochemical methods of analysis, three samples of low-metamorphosed coals were characterized. Coals are low-sulfur, medium-ash with a low basicity of ash. Petro-graphic analysis showed that the analyzed samples of coal are predominantly vitrinite. The examined samples are characterized by a sufficiently significant yield of semi-coking resin, gaseous and highly volatile substances. According to the established technological indicators, according to GOST 25543-88, these coals can be recom-mended for energy-engineering use, for example, in the process of semi-coking.

Key words: coal metamorphism vitrinite elemental composition thermogravimetry semi-coking pitch

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