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Decarbonization and Increased Productivity in the Reheating Furnace Using Hydrogen Fuel

In the last decade, decarbonization of the steel industry has motivated comprehensive investigation on the use of hydrogen fuel in steelmaking. However, the increased heat output of hydrogen-fueled burners also creates opportunities for furnace throughput improvements. The primary factors that affect steel quality and productivity are the uniform distribution of heat, followed by slab residence time in the reheating furnace. Using computational fluid dynamics to model hydrogen utilization and comparing the results to traditional natural gas combustion, opportunities for increased furnace throughput were found due to the higher relative heat output of hydrogen as a fuel. One approach covered in this study is the use of regenerative burners in a reheating furnace using hydrogen as fuel. Apart from the decarbonization achieved while using hydrogen as fuel, the additional effect of using regenerative burners in such a furnace is studied with respect to thermal efficiency and productivity increase.
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2024/08 AIST Iron & Steel Technology August
PR-PM0824-3
Anurag Karambelkar, Chukwunedum Uzor, Nicholas Walla, Armin K. Silaen, Lawrence Fabina, et al.
August 01, 2024
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