Polymerization reactor control using computationally tractable input/output models

BR Maner - 1996 - search.proquest.com
A nonlinear model predictive control scheme based on the second-order Volterra model is
presented. Formulations using successive substitution and direct solution of a nonlinear …

Moving horizon estimation and control for an industrial gas phase polymerization reactor

JD Hedengren, KV Allsford… - 2007 American Control …, 2007 - ieeexplore.ieee.org
Moving horizon estimation (MHE) has been applied to an industrial gas phase
polymerization reactor to improve estimates of current states and parameters. MHE is …

Investigation of process dynamics and control of polystyrene batch reactor using hybrid model

MA Hosen, MA Hussain… - Proc. World …, 2012 - researchbank.swinburne.edu.au
The effects of operating conditions such as initiator and monomer concentration as well as
reactor temperature of polymerization reactors are studied in this work. A recently developed …

Performance analysis of three controllers for the polymerisation of styrene in a batch reactor

EE Ekpo, IM Mujtaba - Chemical Product and Process Modeling, 2007 - degruyter.com
The performance analysis of three advanced non linear controllers is the main focus of this
paper. All three controllers are applied for the control of a batch polymerisation reactor which …

Hybrid Model Based Control of Propylene Copolymerization in Fluidized Bed Reactor

NF Salahuddin, A Shamiri, MA Hussain… - Computer Aided …, 2018 - Elsevier
A modified two-phase model for gas phase ethylene and propylene copolymerization was
used to describe the process in a fluidized bed reactor. The process model considered solid …

Dynamics and predictive control of gas phase propylene polymerization in fluidized bed reactors

A Shamiri, M azlan Hussain, F sabri Mjalli… - Chinese Journal of …, 2013 - Elsevier
A two-phase dynamic model, describing gas phase propylene polymerization in a fluidized
bed reactor, was used to explore the dynamic behavior and process control of the …

Synthesis of open-loop controls for semibatch copolymerization reactors by inverse feedback control method

KY Choi, DN Butala - Automatica, 1989 - Elsevier
In this paper a new approximation method for the synthesis of open-loop control systems in
batch and semibatch free radical copolymerization processes is presented. Being …

Polymer property control in a continuous styrene polymerization reactor using model-on-demand predictive controller

SM Hur, MJ Park, HK Rhee - Korean Journal of Chemical Engineering, 2003 - Springer
The model-on-demand (MoD) framework was extended to the model predictive control
(MPC) to design a multiple variable model-on-demand predictive controller (MoD-PC). This …

Control of continuous copolymerization reactors

S Padilla, J Alvarez - AIChE journal, 1997 - Wiley Online Library
Continuous solution copolymerization is an important industrial process in the manufacture
of commodity and engineering plastics. The addition of comonomers and solvent, and the …

Multivariable control strategy based on bifurcation analysis of an industrial gas-phase polymerization reactor

NPG Salau, GA Neumann, JO Trierweiler… - Journal of Process …, 2009 - Elsevier
In an industrial gas-phase polyethylene reactor, the safe operating range of temperature is
rather narrow. Even within this temperature range, temperature excursions must be avoided …