利用Labsys同步热分析仪以非等温热重分析研究了碳气化反应动力学,考察了升温速率对碳气化反应的影响.在非等温热重分析中,Doyle和Gorbatchev近似函数都可以模拟碳气化反应过程.通过对比这两个函数拟合实验数据的相关系数,确定在使用非等温热重分析研究碳气化反应动力学时,使用Gorbatchev函数是求取反应动力学参数的较好方法.结果表明:活化能和指前因子都随着升温速率的增加而减小.活化能和指前因子之间有着较好的线性关系,碳气化反应过程中存在着动力学补偿效应.
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