Low CO2 Ironmaking in the Blast Furnace
(Room 207B)
08 May 17
11:00 AM
-
11:30 AM
Tracks:
Blast Furnace Technology Development & Research I
A number of concepts to minimize the emission of CO2 from the blast furnace have been proposed by different R&D teams, such as the ULCOS TGRBF (top gas recycling BF), or high injection of hydrogen (H2) in combination with CCS (Carbon Capture and Storage). Other options investigated, not requiring extensive modification of the BF plants, are the use of bio-based reductants, charging of activated coke, or carbon composite agglomerates including those involving biomass products. In this paper, these options for reducing CO2 emissions are analyzed relative to the BF conditions, including impact on slag formation, HM quality, temperature and gas profiles, etc. The possible impact on energy consumption and CO2 emission is compared. The analyses are based on research results deduced from published results from laboratory tests, trials in the LKAB Experimental BF (EBF) as well as industrial BFs.