Scientific, technical and ecological aspects of expanding the fuel base of energy and cement production due to petroleum coke
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- Category: Content №6 2025
- Last Updated on 25 December 2025
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Authors:
M. V. Chernyavskyy*, orcid.org/0000-0003-4225-4984, Thermal Energy Technology Institute of National Academy of Science of Ukraine, Kyiv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
O. Yu. Provalov, orcid.org/0000-0002-5191-2259, Thermal Energy Technology Institute of National Academy of Science of Ukraine, Kyiv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
* Corresponding author e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2025, (6): 127 - 135
https://doi.org/10.33271/nvngu/2025-6/127
Abstract:
Purpose. Generalization of experience in the fuel use of petroleum coke using various combustion technologies and development of scientific foundations for its use for rotary kilns in the production of Portland cement clinker in compliance with environmental requirements.
Methodology. Determination of the efficiency of sulfur capturing in a rotary kiln and in a decarbonizer based on the material balance of sulfur in raw materials, fuel and clinker. Determination of the permissible content of petroleum coke in fuel based on the calculating of the level of sulfur dioxide emissions using the found sulfur binding coefficient.
Findings. It is shown that petroleum coke is equivalent to high-sulfur lean coal as a fuel. The experience of using petroleum coke in power plants with circulating fluidized bed (CFB) and pulverized combustion, in particular, in the boiler of the 800 MW power unit of the Slovianska TPP, is analyzed. The technology of “dry” cement production is considered. It is proven that the conditions of petcoke combustion in a rotary kiln for clinker calcination, calcium carbonate decomposition in a decarbonizer, and calcium oxide contact with sulfur dioxide coincide with the optimal conditions for sulfur capturing in the technology of coal CFB. The efficiency of sulfur capturing in a rotary kiln and in a decarbonizer is determined based on the material balance of sulfur in raw materials, fuel, and clinker. The permissible content of petroleum coke in fuel for pulverized combustion and for rotary kilns is determined based on the calculation of the level of sulfur dioxide emissions using the found sulfur binding coefficient. Recommendations for the use of petroleum coke in cement production to expand its fuel base while complying with environmental requirements are provided.
Originality. The efficiency of sulfur binding of solid fuel in a rotary kiln and in a decarbonizer is determined. It is proven that in the technology of “dry” cement production with a higher proportion of petroleum coke in the fuel, sulfur dioxide emissions are 11 times lower than in pulverized combustion. A methodology for assessing the permissible content of petroleum coke in fuel for a rotary kiln is developed.
Practical value. The advantages of using petroleum coke as fuel for rotary kilns in clinker production are proven. The permissible content of petroleum coke in fuel is determined while meeting EU environmental requirements. Recommendations are provided for the use of petroleum coke in cement production to expand its fuel base.
Keywords: petroleum coke, hard coal, Portland cement clinker, rotary kiln, decarbonizer
References.
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