Nonlinear process model-based self-optimizing control of complex crude distillation column

摘要

The control system based upon a nonlinear process model is presented in this paper. The self-optimizing control strategy is used for the maintenance of the optimal steady-state of a complex crude distillation column. The optimal distillation operation under unmeasurable feed composition disturbances has been considered. It has been also suggested that the stabilization of the certain relationship between pumparound streams in the sense of vector criterion provides the optimal operation of the crude distillation tower within the minimum and acceptable losses.