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IJCT Vol.14(4) [July 2007] >

Title: Multistep model predictive control of ethyl acetate reactive distillation column
Authors: Chandra, P V S Ravi
Venkateswarlu, Ch.
Keywords: Reactive distillation
PI control
Model predictive control
Issue Date: Jul-2007
Publisher: CSIR
IPC CodeB01D3/26, C07C
Abstract: An unconstrained model predictive control (MPC) strategy is presented for single input-single output (SISO) control of a reactive distillation column. The predictive model of the MPC is based on the autoregressive moving average (ARX) model structure, whose parameters are updated on-line using the process measurement information. The design and performance of the control strategy is evaluated by applying to a highly nonlinear ethyl acetate reactive distillation column with double feed column configuration involving an esterification reaction with azeotropism. The controller performance is studied with respect to the effect of tuning parameters involved in the ARX model parameter adaptation algorithm and also towards the influence of model prediction and control horizons. The simulation results illustrate the superior performance of the multistep model predictive control strategy over the conventional PI controller for both setpoint tracking as well as disturbance rejection.
Page(s): 333-340
ISSN: 0971–457X
Source:IJCT Vol.14(4) [July 2007]

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