高炉富氧喷吹焦炉煤气对CO₂减排规律研究

来源期刊：钢铁钒钛2010年第3期

论文作者：高建军 郭培民

文章页码：1 - 5

关键词：高炉； 喷吹； 焦炉煤气； 工序CO₂排放； 数学模拟

Key words：blast furnace； injection； coke oven gas； ironmaking CO₂ emissions； numerical simulation

摘    要：将高炉分为高温区和固体炉料区两个区域,在物料平衡和热量平衡的基础上,以大型高炉生产数据做支撑,建立了高炉富氧喷吹焦炉煤气数学模型。计算结果表明:高炉富氧喷吹焦炉煤气,焦炉煤气喷吹量每增加50m³,可减少炼铁工序CO₂排放量约5%,同时风口理论燃烧温度降低约35℃;如果保持风口理论燃烧温度与现有大型高炉相同,那么随着焦炉煤气喷吹量的增大,炼铁工序CO₂排放量要比不考虑风口理论燃烧温度时大,但仍可以显著降低CO₂排放量。

Abstract: The blast furnace is divided into two zones of hot zone and solid furnace charge zone.Based on the material and heat balance,according to lager-scale blast furnace production data,the mathematical model of injection of coke oven gas to blast furnace is established.The calculation results show that when coke oven gas injection volume is increased by 50 m³,ironmaking CO₂ emissions will reduce 5%,while theoretical flame temperature is decreased by 35℃.If keep the theoretical flame temperature same as large-scale blast furnace,with the increase of amount of coke oven gas injection,CO₂ emissions of ironmaking are larger than that without considering theoretical flame temperature,but it can always decrease CO₂ emissions obviously.