Optimal nonlinear control of an industrial emulsion polymerization reactor

Nonlinear Control Reactor: an of a Batch Polymerization Experimental Study

This work studies the experimental application of the globally linearizing control ( GLC) method to a batch polymerization reactor. The nonlinear controller is implemented on a microcomputer to start up the reactor and then track a precalculated optimal temperature profile. The reactor temperature is controlled by manipulating two coordinated inputs: power to an electrical heat and cooling wate...

CFD Investigation of Hydrodynamics in an Industrial Suspension Polymerization Mixing Reactor

Evolutionary Algorithms for Optimal Control of Ppt Polymerization Reactor

Synthesis of Poly(propylene terepthalate) (PPT) is normally carried out (in batch as well as semi-batch mode) in a combined mixture of TPA (terephthalic acid) and PG (1,3-propanediol) with a suitable catalyst in two steps: esterification and polycondensation. Functional group modeling technique is used here to analyse the semibatch PPT formation system. Objectives of multiobjective optimization...

Optimal Grade Transition Control for Liquid-propylene Polymerization Reactor

A nonlinear control system integrating an off-line optimizer and a nonlinear model-based controller is developed to perform optimal grade transition operations in a continuous pilot plant reactor. A simple black-box model is developed and used to determine optimal trajectories of inputs and outputs for a series of three polypropylene grades. The simplified model is also used to develop a nonlin...

Stochastic Nonlinear Model Predictive Control of an Uncertain Batch Polymerization Reactor

This paper presents a stochastic nonlinear model predictive control technique for discrete-time uncertain nonlinear systems with particular focus on the batch polymerization reactor application. We consider a nonlinear dynamical system subject to chance constraints (i.e. need to be satisfied probabilistically up to a pre-assigned level). This formulation leads to a finite-horizon chance-constra...