Development and Application of Converter COMI-B Technology: A New Way of CO2 Utilization

CO2 has characteristic properties and reactions at the converter smelting temperature, chemical reaction between elements such as C Si in molten pool bubble proliferation cooling effects, which can effectively improve kinetic thermodynamic conditions of smelting. Here, an experimental study industrial test on application were carried out. The effects Mode-1 Mode-2 with total injection amounts 229 Nm3 196 Nm3, respectively, compared, changes steel slag compositions, dust removal, gas analyzed. results show that top bottom blowing technology (COMI-B) had significant metallurgical advantages over N-Mode; dephosphorization rate increased by 4.2%, (FeO) content was reduced 2.04%, end point nitrogen 20%, recovery 8.29 Nm3/t, soot production 14.7%. provide a reference for COMI-B converters iron industry develop new path resource utilization CO2.