乙炔前加氢催化剂活性分析方法研究

乙炔加氢催化剂活性对反应器入口CO浓度变化非常敏感,量化CO浓度对催化剂活性的影响程度并预测催化剂活性与反应器入口温度的对应关系十分必要。通过反余切三角函数建立催化剂活性随CO浓度变化的模型,定量描述CO浓度对催化剂活性的影响,并结合反应器入口温度、入口原料气总质量、入口与出口各物质的含量等实际生产数据,优化动力学参数和失活模型参数,定性和定量描述催化剂活性变化后反应器入口温度的调整方法,利用此模型结合相关数据考察反应器入口温度对催化剂活性的影响。

Study of activity analysis method of acetylene front end hydrogenation catalyst

The activity of acetylene hydrogenation catalyst is very sensitive to concentration change of CO in the reactor inlet.It is necessary to quantify the influence of CO concentration on the catalyst activity and predict the corresponding relation of catalyst activity and the temperature of reactor inlet.In this paper, through establishing arccot trigonometric function model of catalyst activity with the change of CO concentration,the effects of CO concentration on catalyst activity were described quantitatively.Combined with the actual production data of the reactor inlet temperature,total mass of inlet feed gas and contents of each material in inlet and outlet,the kinetic parameters and deactivation model parameters were optimized,and the adjustment method of reactor inlet temperature was qualitatively and quantitatively described after the change of catalyst activity.Combined with the related data,the effects of reactor inlet temperature on catalyst activity were investigated by using this model.