Business targets
The main reducing agent for hot metal production is coke, the uniqueness of which is due to the high content of non-volatile carbon, mechanical strength and good gas permeability.
Coke is obtained by sintering with a binder (coking coal grades). Consumption of the coking additive is determined by the coking technology.
The goal of this project is to reduce the cost of a reducing agent for blast furnace melting by increasing the share of alternative coking materials (PCIM) or other improvements in coking technology
Implementation features
Low-sulphur petroleum coke has a stable demand and its use in the ferrous steelmaking is not economically justified.
Less demanded sulphurous petroleum coke can replace coking coal or final coke, however, without a working desulfurization technology, this leads to an increase in the sulphur content in the metal and slag.
Desulfurization of petroleum coke with organic solvents or preliminary partial oxidation has been confirmed at the laboratory level; it is necessary to fine-tune and comprehensively evaluate the technology and economics of the project and link it with the business models of NLMK and petrochemistry.
Effect
Analysis of the coking coal market, blast furnace requirements and estimates of the potential market size showed that the new technology can increase the company’s total revenue by 2% per year due to savings on external purchases.
See also
Steel for the production of high efficiency motor cores for low frequencies
Follow
