裂化催化剂碳含量与催化性能的关联研究

Mathematical Simulation to Effect of Regenerated Catalyst Carbon Content on FCC Reaction Performance

通过模型方程推导和参数估计建立了与再生裂化催化剂碳含量关联的转化率及焦炭、裂化气体和汽油产率数学模型，并建立了考虑再生剂碳含量和转化率影响的汽油辛烷值数学模型。模型预测结果表明，随着再生剂碳含量提高，转化率、焦炭和裂化气体产率及选择性均不断降低，汽油选择性和辛烷值不断提高，汽油产率呈先增大后减小的变化规律。

Based on the experimental data of FCC reactions, the mathematical models of conversion, coke yield, gas yield and gasoline yield relative to the carbon content of regenerated catalyst were investigated through model equation deductions and model parameter estimations. The mathematical models of gasoline octance number relative to reaction conversion and the carbon content of regenerated catalyst were developed. The results of model predictive calculations show that the carbon content rise in regenerated catalyst leads to conversion drop, coke yield drop, the yield and selectivity drop of gas product, the octance number rise and selectivity rise of gasoline. The study points out that gasoline yield changes from rise to drop with the carbon content rise in regenerated catalyst.