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ORGANIZER;CN='8th ECIC & 9th ICSTI 2022':MAILTO:info@ecic-icsti.com
LOCATION:Room „Danzig“
SUMMARY:Carburization and melting characteristics of hydrogen-reduced DRI
DESCRIPTION:Iron and steel industries are major contributors to the greenhouse gas emissions. The majority of these emissions are linked to the use of fossil-based carbon. Hence, decarbonization of the steel industry is one of the pathways toward a fossil-free environment. One of the decarbonization strategies is to replace the fossil-based reductant by green hydrogen. However, the produced zero-carbon DRI will cause the refining and steelmaking operations to have a starting point far from today’s operational practices. The furnace feedstock melting point will be increased by several hundred degrees, melting will take place over a very short melting interval, gas formation in the melt will be very limited, and slag foaming will be difficult to achieve without introducing additional carbon. Therefore, in hydrogen-based iron making process, a way to introduce carbon in a controlled manner is essential.
In the present study, attempt have been made to investigate the carburization of hydrogen-reduced DRI at the single pellet scale. The factors affecting the carburization process, such as gas composition, temperature and duration were investigated thoroughly in the temperature range of 600 to 800oC. Further, the carbon introduced into the hydrogen-reduced DRI can either be in the form of cementite, graphite (free-carbon) or mixture of both. Therefore, the effect of carbon content and the form in hydrogen-based DRI for their respective melting characteristics have also been investigated, and presented here.

CLASS:PUBLIC
DTSTART:20220631T152000
DTEND:20220631T154500
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