Dynamic behaviour of polymerization reactors

WH Ray - Modelling of Chemical Reaction Systems: Proceedings …, 1981 - Springer
The dynamic behaviour of polymerization reactors is very interesting and complex. The
possibilities for reactor runaway, multiple steady states, and autonomous oscillations cause …

Modeling and control of continuous stirred tank reactor for thermal copolymerization

WH Hwang, JI Chey, HK Rhee - Journal of applied polymer …, 1998 - Wiley Online Library
A mathematical model is developed for solution copolymerization in a continuous stirred
tank reactor. For the thermal copolymerization of styrene and acrylonitrile (SAN), the kinetic …

The dynamic behavior of continuous solution polymerization reactors—A full bifurcation analysis of a full scale copolymerization reactor

JC Pinto - Chemical engineering science, 1995 - Elsevier
In a previous paper, Pinto and Ray developed a mathematical model to describe the
dynamic behavior of continuous solution copolymerization reactors and validated the model …

Optimizing Control and State Estimation of a Continuous Polymerization Process in a Tubular Reactor with Multiple Side‐Streams

R Hashemi, D Kohlmann… - Macromolecular Reaction …, 2016 - Wiley Online Library
In this contribution, a nonlinear model‐based optimizing control for continuous
polymerization of acrylic acid in tubular reactors with multiple side injections of monomer is …

Feedforward/feedback control of multivariable nonlinear processes

P Daoutidis, M Soroush, C Kravaris - AIChE Journal, 1990 - Wiley Online Library
This paper concerns general MIMO nonlinear processes, whose dynamic behavior is
described by a standard state‐space model of arbitrary order, including measurable …

Bifurcation control and eigenstructure assignment in continuous solution polymerization of vinyl acetate

N Zhang, T Qiu, B Chen - Chinese Journal of Chemical Engineering, 2015 - Elsevier
The major difficulty in achieving good performance of industrial polymerization reactors lies
in the lack of understanding of their nonlinear dynamics and the lack of well-developed …

Modeling and control of a batch condensation polymerization reactor

DG Robertson, SA Russell, JH Lee… - Proceedings of 1995 …, 1995 - ieeexplore.ieee.org
In this paper we examine the control of a condensation polymerization reactor. The nylon 6,
6 system is chosen as a representative polymerization process. A model for a nylon …

Verification of controllers in the presence of uncertainty: Application to styrene polymerization

E Gazi, WD Seider, LH Ungar - Industrial & engineering chemistry …, 1996 - ACS Publications
This paper describes a methodology for verifying the stability and performance of closed-
loop nonlinear systems, as arise in chemical plants with process controllers, when the …

Robust adaptive process control of a polymerization reactor

SA Mendoza-Bustos, A Penlidis, WR Cluett - Computers & chemical …, 1990 - Elsevier
Two different approaches to robust adaptive control are applied to the control of monomer
conversion (ie productivity) of a simulated continuous solution polymerization reactor in the …

Realization of online optimizing control in an industrial semi-batch polymerization

TF Finkler, M Kawohl, U Piechottka, S Engell - Journal of Process Control, 2014 - Elsevier
In this work, the realization of an online optimizing control scheme for an industrial semi-
batch polymerization reactor is discussed in detail. The goal of the work is the automatic …