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A Mathematical Model of COREX Process with Top Gas Recycling
Steel Research International ( IF 1.9 ) Pub Date : 2020-08-04 , DOI: 10.1002/srin.202000292 Shun Yao 1 , Shengli Wu 1 , Shuyu Wang 1 , Zhiyong Tang 1 , Jiahui Yang 1 , Heng Zhou 1 , Bo Song 1 , Mingyin Kou 1
Steel Research International ( IF 1.9 ) Pub Date : 2020-08-04 , DOI: 10.1002/srin.202000292 Shun Yao 1 , Shengli Wu 1 , Shuyu Wang 1 , Zhiyong Tang 1 , Jiahui Yang 1 , Heng Zhou 1 , Bo Song 1 , Mingyin Kou 1
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A mathematical model of the COREX process with a top gas recycling technology is developed based on mass and heat balances. Herein, the influence of top gas recycling on the operation parameters of the COREX process is investigated. The results show that the theoretical combustion temperature is significantly affected by gas injection, and the theoretical combustion temperature can be reduced by 116.11 and 72.94 °C, respectively, by injecting the gas without CO2 removal and the gas after CO2 removal. Also, injecting the gas without CO2 removal obviously reduces the dome temperature, but injecting the gas after CO2 removal has no obvious effect on the dome temperature. The fuel rate and integrated fuel rate can be reduced by injecting the two kinds of gas, and the fuel rate can be reduced by 2.84 and 2.86 kg t−1, respectively, by injecting the gas without CO2 removal and the gas after CO2 removal, but the decrease in the integrated fuel rate by injecting the gas after CO2 removal is relatively small, only 0.31 kg t−1.
中文翻译：
顶部气体回收的COREX工艺的数学模型
基于质量和热量平衡，开发了采用顶级气体回收技术的COREX工艺的数学模型。在此，研究了顶部气体再循环对COREX工艺操作参数的影响。结果表明，理论燃烧温度受气体注入的影响较大，通过注入未去除CO 2的气体和去除CO 2之后的气体，理论燃烧温度可分别降低116.11和72.94°C 。另外，注入没有去除CO 2的气体会明显降低球顶温度，但是注入CO 2之后的气体去除对球顶温度没有明显影响。可通过注入两种气体而降低燃料率和综合的燃料消耗率，并且可以通过2.84被减少和燃料速率2.86千克吨-1分别，通过注入气体，而不CO 2 CO后去除和气体2去除，但是通过去除CO 2之后注入气体而使综合燃料率的降低相对较小，仅为0.31 kg t -1。
更新日期：2020-08-04
中文翻译：
顶部气体回收的COREX工艺的数学模型
基于质量和热量平衡，开发了采用顶级气体回收技术的COREX工艺的数学模型。在此，研究了顶部气体再循环对COREX工艺操作参数的影响。结果表明，理论燃烧温度受气体注入的影响较大，通过注入未去除CO 2的气体和去除CO 2之后的气体，理论燃烧温度可分别降低116.11和72.94°C 。另外，注入没有去除CO 2的气体会明显降低球顶温度，但是注入CO 2之后的气体去除对球顶温度没有明显影响。可通过注入两种气体而降低燃料率和综合的燃料消耗率，并且可以通过2.84被减少和燃料速率2.86千克吨-1分别，通过注入气体，而不CO 2 CO后去除和气体2去除，但是通过去除CO 2之后注入气体而使综合燃料率的降低相对较小，仅为0.31 kg t -1。
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