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在裂化催化剂再生时,可以设想焦炭中碳燃烧的几种可能反应模型,即简单反应模型、连串反应模型、平行一连串反应模型和表面反应模型.运用序贯实验设计方法,用所得的实验数据对这些模型进行筛选,并对所选出的最优模型进行参数精估.结果表明,连串反应模型和平行一连串反应模型为较优的模型:焦炭(C)?它能在实验温度范围(600～800℃)内,较好地描述消碳反应的全过程.
In the regeneration of cracking catalyst, several possible reaction models of carbon combustion in coke, ie simple reaction model, series reaction model, parallel series of reaction model and surface reaction model, can be envisaged.Using the experimental design method and the obtained experimental data These models were screened and the parameters of the selected optimal model were estimated.The results showed that the series reaction model and the parallel series of reaction model were the best model: coke (C)? It can be in the experimental temperature range 600 ~ 800 ℃), a better description of the whole process of carbon elimination reaction.