Using Coal Resources with Optimal Bursting Pressure for the Production of High-Quality Metallurgical Coke

Denis Miroshnichenko (), Kateryna Shmeltser, Maryna Kormer, Oleksiy Sytnyk, Iliya Avdeyuk, Mykhailo Miroshnychenko and Mariia Shved
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Denis Miroshnichenko: The Department of Oil, Gas and Solid Fuel Refining Technologies, National Technical University «Kharkiv Polytechnic Institute», 61002 Kharkiv, Ukraine
Kateryna Shmeltser: The Department of Chemical Technology and Engineering, State University of Economics and Technology, 50005 Kriviy Rih, Ukraine
Maryna Kormer: The Department of Chemical Technology and Engineering, State University of Economics and Technology, 50005 Kriviy Rih, Ukraine
Oleksiy Sytnyk: State Enterprise «Ukrainian State Scientific Research Coal Chemical Institute (UKHIN)», 610237 Kharkiv, Ukraine
Iliya Avdeyuk: The Department of Oil, Gas and Solid Fuel Refining Technologies, National Technical University «Kharkiv Polytechnic Institute», 61002 Kharkiv, Ukraine
Mykhailo Miroshnychenko: The Department of Oil, Gas and Solid Fuel Refining Technologies, National Technical University «Kharkiv Polytechnic Institute», 61002 Kharkiv, Ukraine
Mariia Shved: Department of Information Protection, Lviv Polytechnic National University, 79013 Lviv, Ukraine

Resources, 2025, vol. 14, issue 5, 1-21

Abstract: When applying advanced technologies and technological methods for the preparation of coal raw materials (technology for coking stamped batch, technology for coking dry or thermally prepared batch), the problem of developing high bursting pressure arises. The aim of this research is to assess the possibility of predicting the bursting pressure of coal blends taking into account their technological properties and petrographic characteristics, as well as to study the effect of bursting pressure on the metallurgical properties of coke. Standardized methods were used to study the technological properties of coal and coal blends (determination of technical and petrographic analyses). The qualitative characteristics of coke were studied using physical, mechanical, and thermochemical methods for the study of standardized indicators: crushability (M 25 ), abrasion (M 10 ), reactivity (CRI), and post-reaction strength (CSR). The regression equations for predicting the bursting pressure of coal blends, taking into account the volatile matter in the blend, vitrinite content, and grinding, which are characterized by high correlation coefficients (0.89 and 0.9), were proposed. Their use will make it possible to optimize the composition of coal batches, control the bursting pressure during regrinding, and reduce the number of experimental measurements in a particular coke production. It was also found that an increase in the bursting pressure by 1 kPa can be expected to increase the mechanical strength of coke in terms of crushability M 25 by about 2.6% and reduce the abrasion of coke M 10 by 1%.

Keywords: coal resources; batch; bursting pressure; petrographic characteristics; volatile matter; prediction; coke quality (search for similar items in EconPapers)
JEL-codes: Q1 Q2 Q3 Q4 Q5 (search for similar items in EconPapers)
Date: 2025
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