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ORGANIZER;CN=ESTAD 2023:mailto:info@metec-estad.com
LOCATION:Room 16b
SUMMARY:Study on the reducibility of BF-grade pellets with hydrogen
DESCRIPTION:In order to reduce CO2 emissions and make steel production more sustainable, many steel producers are currently planning to produce metallic iron for steel production using hydrogen-based direct reduction instead of carbon based reduction gas.  Melting in electric arc furnaces demands low amounts of gangue in DRI to keep the slag volume low. In respect to this DR pellets with high iron concentration are required. On the other hand highly concentrated iron ore with increased basicity is less available compared to medium iron containing BF pellets with low basicity.
IEHK at RWTH Aachen University is characterizing different BF-grade pellets and investigating the influence of texture on reducibility using hydrogen. The characterization is carried out with the aid of chemical analyses of the composition and investigations of the microstructure by microscopy. The reducibility of individual BF-grade pellets is studied in a laboratory furnace using different hydrogen concentrations. In addition, direct reduction tests were carried out using a test plant with a capacity of approx. 20 kg of iron ore pellets. This allows the consideration of mechanisms that may be observed in the reduction of a bulk but not in individual pellets and allows use for upscaling considerations. 
The results of the investigation can be applied to design further direct reduction processes with low-grade iron ore pellets.

CLASS:PUBLIC
DTSTART:20230614T104000
DTEND:20230614T110000
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