Turning Challenge into Opportunity 2025

Technology Technology descriptionTechnology readiness level (TRL) TRL rationale Use cases Use case source(s) Steel: blast furnace – hydrogen fuel injection (blending)Steel produced by hydrogen fuel injection (blending) in a blast furnace is a method of steel production that involves the use of hydrogen as a fuel source in the blast furnace. The hydrogen is blended with traditional fuels, such as coal, to replace a portion of the fossil fuels used in the steelmaking process. Blast furnace hydrogen fuel injection is a promising technology for reducing the carbon footprint of the steel industry and supporting sustainable production.7 IEA, 2025. ETP Clean Energy Technology GuideThyssenKrupp Steel conducted the world’s first test of hydrogen injection into an operating blast furnace (blast furnace No.9 (BF9)).Thyssenkrupp Steel, 2021. First test phase successfully concludes for green steel technologies Steel: coke dry quenching in BF-BOF steel for waste heat recoveryCoke dry quenching (CDQ) is a waste heat recovery process in blast furnace-basic oxygen furnace (BF-BOF) steel production. In CDQ, the hot coke from the blast furnace is cooled rapidly using air, which generates steam that can be used for power generation. This process helps reduce energy consumption, lower greenhouse gas emissions and improve overall efficiency of the BF-BOF production process. CDQ is an important step in the development of more sustainable and environmentally friendly steel production practices.9 IEA, 2023. Iron and Steel Technology RoadmapTata Steel’s Jamshedpur plant has installed new coke dry-quenching (CDQ) plants (for their new coke oven batteries COB-10 & 11) with waste heat recovery boilers, as part of their expansion and efficiency improvements. With the CDQ plus waste heat boiler setup, surplus high-pressure steam is to be used in a steam turbine to generate ~40 MW of power.Tata Consulting Engineers, n.d. Engineering excellence for sustainable power generation from coke oven plant Steel: top-pressure recovery turbines (TRTs) in blast furnacesSteel top-pressure recovery turbines (TRTs) use waste heat from the blast furnaces during the steelmaking process to generate additional electricity, improving energy efficiency and reducing emissions. The hot gas from the blast furnace is fed through a TRT, which drives a turbine to produce electricity. The use of TRTs can lead to significant energy savings for steel producers and reduce their carbon footprint.9 IEA, 2023. Iron and Steel Technology RoadmapMitsui E&S, a Japanese equipment firm, reports having supplied more than 70 TRT units to steel plants globally.MES, 2024. Top pressure recovery turbine (TRT) technologies for steel plants Turning Challenge into Opportunity: Supplier Voices from Heavy-Emitting Sectors 68