Using available data of an industrial column the process
was simulated using the HYSYS® simulation environment,
observing that it has a nonlinear behavior, characterized by
different gains and transient times for each operating point and
each process channel.
Using the Markov parameters identification procedure
(Fig.5), models of the process were determined for every
process channel. The simulation data are the process response
(top and bottom composition variation) to input (control
variables and disturbances) step changes.