Research on BF Carbon Reduction through Fuel Substitutes
To effectively reduce CO2 emission generated during BF production,more and more steel producers are interesting in the solution of injecting gas,or using liquid or solid fuel as substitute of coke charge to BF.It is analyzed the influences of fuel rate and coal injection rate on the furnace CO2 emission based on the main techno-economic indicators of seven 1800 m3 scale BFs owned by six typical steel producers in 2021.The results show that BF C02 emission of these six typical steel producers spans from 1.419 to 1.595 t/t,and fuel rate roles as the most important factor closely related to the CO2 e-mission.However,simply increasing the pulverized coal injection rate isn't the decisive way to reduce the CO2 emission,in-stead,selecting hydrogen as a substitute of carbon is more effective.
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