Analysis on energy-saving and CO2 emissions reduction in BOF steelmaking by substituting limestone for lime to slag

To analyze quantitatively the energy saving and CO₂ emissions reduction by substituting limestone for lime to slag in BOF, some data of the energy consumption and CO₂ emissions were calculated by comparing the limestone-slagging mode with the lime-slagging mode in BOF process. The energy of 86240 kJ can be saved and the CO₂ emissions of 51.13 kilogram can be reduced in one-ton steel producing with the limestone mode in BOF, compared with the lime mode. Great contributions are made to energy conservation and CO₂ emissions reduction by substituting lime for limestone to slag in BOF steelmaking.