高炉炼铁排放CO2是钢铁行业温室气体排放的主要来源,CO2的产生与高炉内众多条件相关。应用物料平衡计算与热平衡计算,根据国内某高炉原料条件与冶炼参数,主要计算分析铁水w(Si)对焦比、碳排放量的影响,得出了定性定量的关系:在本文的计算条件下,铁水w(Si)每升高0.1%,焦比吨铁增加4.54 kg,碳排放量吨铁增加7.46 m3。 CO2 Emissions from Blast Furnaces Iron and steel is the main source of greenhouse gas emissions in the steel industry. The generation of CO2 is related to many conditions in the blast furnace. According to the material conditions and smelting parameters of a blast furnace in China, the influence of the w / Si on the coke ratio and the carbon emission was calculated and the qualitative and quantitative relations were obtained. Under the calculation conditions of this paper, For every 0.1% increase in hot metal w (Si), the coke increased 4.54 kg per tonne of iron and 7.46 m3 per ton of carbon.