Static/dynamic analysis and controllability issues in reactive distillation columns

The design, operation and control of reactive distillation columns are more complex than those involved for either reactors or conventional distillation columns. Therefore, a good understanding of the process helps to avoid unsafe operation conditions and further facilitates various subsequent studies such as control, monitoring, data reconciliation, parameter estimation and optimization of existing plants. In this work the study of the steady state and dynamic behavior as well as the analysis of some controllability issues for reactive distillation columns, based on the applicability of the (equilibrium) element-based approach and thermodynamic issues, are presented. The MTBE process is selected as case study, so that previous reported results can be compared and verified. Results are obtained using ICAS and ASPEN simulators.