National Research University “MPEI”, Moscow, Russia

K. V. Strogonov, Cand. Eng., Associate Prof., Dept. of Innovative Technologies for Science-Intensive Industries, e-mail: StrogonovKV@mpei.ru
A. D. Sychev, Student, e-mail: SychevAD@mpei.ru
D. D. Lvov, Postgraduate Student, e-mail: LvovDD@mpei.ru
V. A. Murashov, Postgraduate Student, e-mail: MurashovViacA@mpei.ru
N. A. Shalygin, Student, e-mail: ShalyginNA@mpei.ru

Current trends aimed at reducing steel demand and, as a result, leading to a decrease in output, lead to a loss of income by enterprises and an increase in debt obligations. All this points to the need to reduce the cost of steel production. In this area, the way out of the situation is to reduce costs and modernize technology, so the key point is the creation of new technologies, one of which may be the liquid-phase reduction of iron from ore raw materials with hydrocarbon gas obtained during pyrolysis of natural gas under conditions of bottom purging of the melt. The paper presents the results of calculating the degree of reduction and metallization of iron from experimental samples. Aim. Development of a laboratory installation scheme for continuous liquid-phase reduction of iron with a carbon-hydrogen mixture based on data obtained at a batch plant. Methods. Experimental method. Results. A number of experiments on heating and melting followed by purging of the charge with a carbon-hydrogen mixture were carried out in the laboratory of the National Research University “MPEI”. According to the results of melting, a sample wasobtain ed, examined by the metallographic method. Having confirmed the theory by experiments, the next steps are to create a laboratory stand for continuous liquid-phase reduction of iron with a carbon-hydrogen mixture. The paper presents a scheme for the supply of materials for the installation under development, as well as a description of the devices and their connection schemes.
This work was supported by grants from the National Research University “MPEI” for the implementation of the scientific research program “Priority 2030: Technologies of the Future” in 2024-2026.

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