ArcelorMittal Starts Coke Oven Gas Injection in Asturias BF B
ArcelorMittal Asturias has completed its coke oven gas injection project for Blast Furnace B in its Gijón plant in Spain and has initiated the injection of grey hydrogen recovered from various gases, including natural gas and coke-oven gas, a strategic step to reduce CO2 emissions and operational costs. Use of this innovative technology will result in a reduction in CO2 emissions of 125,000 tonnes a year, equivalent to the emissions generated by the annual consumption of 84,000 Spanish households with individual natural gas-based heating systems.
The Smart Carbon approach, as applied in the projects that the Company is working on at its European Flat Products sites, allows gases from various sources to be injected into the blast furnace. The injection of coke oven gas, with high hydrogen content, is an effective and cost-efficient method that enables steel producers to reduce CO2 emissions immediately.
The Asturias project is based on the idea of reducing the amount of CO2 generated in the hot metal production process, through the reuse of part of the gas generated in the coke oven batteries to partially replace the coke used as fuel in the blast furnace. With the same circular economy approach, the plant is finalising the work that will allow coke-oven gas to be supplied to the reheating furnaces in the Heavy Plate and Rail mills in the coming weeks, thus reducing the consumption of natural gas and the generation of CO2. These rolling mills process steel slabs and billets from the Avilés and Gijón steel plants, transforming them into heavy plates and rails, respectively.