8th International Congress on Science and Technology of Ironmaking - ICSTI 2018

In COURSE50 STEP2, integrated verification tests of the reduction of CO2 emissions and CO2 separation from the blast furnace are being conducted, using a newly build 12 m3 experimental blast furnace and a 30-t-CO2/day chemical absorption process evaluation plant simultaneously. Tests have been carried out with the experimental blast furnace to establish a reaction-controlling technology to reduce CO2 emissions from blast furnaces, using hydrogen-based reductants effectively. The aim of this technology is to increase the hydrogen reduction rate by about 10% and to decrease the direct reduction rate by about 10% compared to conventional operations. The results of the experimental blast furnace operation showed positive effect of the reaction-controlling technology on CO2 emissions reduction.