Authors: A.N. Zaostrovsk, N.A. Grabovaya, Z.R. Ismagilov

Title of the article: Comparative analysis of the petrographic composition of Kuzbass coals of the north and south parts of the basin

Year: 2019, Issue: 4, Pages: 77-83

Branch of knowledge: 05.17.07 Chemical technology of fuel and high-energy substances

Index UDK: 662.741.3.022.001.5

DOI: 10.26730/1999-4125-2019-4-77-83

Abstract: The paper is the outcome of compilation of reference material data and collection data and the results of additional research conducted in mine workings of the Anzhersky, Kiselevsky and Tom-Usinsky districts. The changes in the petrographic composition of a series of coal samples of the same grade, taken from different fields of the Kuznetsk basin (from north to south) are considered. It was revealed that the total content of the components of the groups of vitrinite and semivitrinite varied in a peculiar way. The object of the study was the KS grade coals (low-coking coke). The samples were characterized by technical analysis, which showed that coals were close in ash content (A^d = 3.4 - 8.4%) and the yield of volatile substances (V^daf = 18.4 - 21.4%). The close characteristics of the technical analysis make it possible to evaluate better the petrographic composition of the studied coals. Petrographic analysis determined the reflection index of vitrinite (R_{o, r}), which showed that the studied coals by genetic classification belonged to 11–13 class corresponding to KS grade coals. Based on the reflection index of vitrinite, reflectograms were compiled presenting an effective means of assessing the quality of coal. The visual analysis of polished sections makes it possible to determine the manifestation of the microstructure of coal in reflected light, oil immersion (an increase of 300).

Key words: coal coa petrographic analysis vitrinite reflection index coal macerals reflectogram

Publication date: 19.12.2019

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