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Enhanced Blast Furnace Through Syngas Injection From Natural Gas: A New Era For Blast Furnace Technology Enabling Reduced GHG Emissions, OPEX Improvements, Efficient Carbon Capture and Lean Gas Valorization

Greenhouse gas (GHG) emission reduction in steelmaking requires a technology evolution. Enhanced blast furnace (BF) technology, through the injection of syngas from natural gas into blast furnace at tuyeres and/or at shaft level, decreases reducing agents such as coke and coal. The resulting increase in natural gas share, beyond the typical BF operational limits, extends the use of blast furnaces during the transition period toward zero GHG emissions. Additional benefits are OPEX reduction and synergies with pre-combustion CO2 capture, which shows higher efficiency and further CO2 footprint reductions. This paper describes both technologies, focusing on key economic aspects (OPEX) and environmental benefits.
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2022 AISTech Conference Proceedings
PR-386-204
M. Perato, F. Cravino, P. Kinzel, C. Castagnola
May 01, 2022
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