The sensitivity of benchmark tubular reactors subject to temperature and concentration of external perturbations was investigated. Two case studies were evaluated, a pseudo-homogeneous axial dispersion dimensionless tubular reactor and a heterogeneous tubular reactor to produce maleic anhydride. For the dimensionless reactor model, the highest sensitivities in the reactor were located at the center and at the outlet for temperature and concentration disturbances, respectively, while for the heterogeneous reactor model the sensitivity does not undergo significant changes with feed disturbances. When variations in the most sensitive position occur, a cascade controller can be improved using multiple temperature sensors. The evaluation on weighting assignment of the temperature measurements for the cascade control scheme is also described.

中文翻译：

---

确定管式反应器中温度传感器位置敏感区的多尺度分析

研究了受温度和外部扰动浓度影响的基准管式反应器的敏感性。评估了两个案例研究，一个拟均相轴向分散无量纲管式反应器和一个生产马来酸酐的非均相管式反应器。对于无量纲反应器模型，反应器中最高的灵敏度分别位于中心和出口处，分别用于温度和浓度扰动，而对于非均相反应器模型，灵敏度不会随着进料扰动而发生显着变化。当最敏感的位置发生变化时，可以使用多个温度传感器来改进串级控制器。还描述了对串联控制方案的温度测量的加权分配的评估。