A frequency domain based dynamic simulation package for continuous distillation units

摘要

A digital simulation package for dynamic simulation of continuous distillation units in the frequency domain is presented. The package is based on a rigorous dynamic model that can account for all dynamic phenomena known to be important for control studies. Two industrial scale problems ar presented to demonstrate the software: a fictitious but representative 64-tray deisobutanizer, and an actual 91-tray ethane-ethylene splitter. Simulation results reveal the power of the package in computing a wide variety of frequency responses with sufficient accuracy.