废旧阴极炭块的高温燃烧动力学

发布时间：2018-09-04 09:42

【摘要】：本文提出了一维结渣动力学模型,并用该模型研究铝电解槽废旧阴极炭块的高温燃烧动力学。研究了不同碳含量和温度对反应速率的影响,实验结果表明:在碳含量为70%~100%时,碳浓度变化对反应速率的影响符合0.46级反应;在温度区间为900~1080℃时,碳含量为72%的废旧阴极炭块活化能为2263.15k J/mol。动力学机理函数公式为1/αln|1-α|-1/α|1-α-αm|=βt
[Abstract]:In this paper, a one-dimensional slagging kinetic model is proposed and used to study the high-temperature combustion kinetics of waste cathode carbon block in aluminum reduction cell. The effects of different carbon content and temperature on the reaction rate were studied. The experimental results showed that when the carbon content was 70 ~ 100, the effect of carbon concentration on the reaction rate was 0.46, and at 900 ~ 1080 鈩，

本文编号：2221711