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Tubular reactors Continuous tubular reactors have also been used for emulsion polymerization though to a lesser extent than semi-batch reactors and CSTRs [32 51] A wide range of reactors fall into this category namely: single-pass reactors continuous loop reactors packed beds etc Temperature Control of Industrial Gas Phase Propylene Polymerization in Fluidized Bed Reactors Using Model Predictive Control Ahmad Shamiri 1 2+ M A Hussain 1 Farouq Sabri Mjalli 3 and Arash Arami-Niya 1Department of Chemical Engineering University of Malaya 50603 Kuala Lumpur Malaysia

TEMPERATURE CONTROL OF INDUSTRIAL GAS PHASE PROPYLENE POLYMERIZATION IN FLUIDIZED BED REACTORS USING MODEL PREDICTIVE CONTROL

TEMPERATURE CONTROL OF INDUSTRIAL GAS PHASE PROPYLENE POLYMERIZATION IN FLUIDIZED BED REACTORS USING MODEL PREDICTIVE CONTROL Ahmad Shamiri1 Mohamed Azlan Hussain1 Farouq Sabri Mjalli2 Arash Arami-Niya1 1Department of Chemical Engineering University of Malaya 50603 Kuala

The control of emulsion polymerization is a challenging problem due to major limitations encountered in its modeling and on‐line monitoring Although emulsion polymerization has been studied and used for several decades progress has been slow

Temperature Control of Industrial Gas Phase Propylene Polymerization in Fluidized Bed Reactors Using Model Predictive Control Ahmad Shamiri 1 2+ M A Hussain 1 Farouq Sabri Mjalli 3 and Arash Arami-Niya 1Department of Chemical Engineering University of Malaya 50603 Kuala Lumpur Malaysia

3 Executive Summary Temperature control of an emulsion polymerization batch is crucial for final product quality such as crosslinking when using diene monomers such as 1 3 butadiene Proportional-Integral-Derivative (PID) control works well for incremental batch

1 Modeling particle size distribution in emulsion polymerization reactors H M Vale and T F McKenna CNRS-LCPP/ESCPE-Lyon BP 2077 43 Blvd du 11 novembre 1918 69616 Villeurbanne Cedex France Abstract A review of the use and limitations of

Particle size distribution in olefin continuous stirred

Abstract The control of polymer particle size and PSD is of industrial importance Very fine particles pack poorly thereby limiting reactor capacity and present a dust explosion hazard Brockmeier N F "Propylene Polymerization Kinetics in Gas Phase Reactors

Read Control of emulsion polymerization reactors Aiche Journal on DeepDyve the largest online rental service for scholarly research with thousands of academic publications available at your fingertips Control of emulsion polymerization reactors Control of

TEMPERATURE CONTROL OF INDUSTRIAL GAS PHASE PROPYLENE POLYMERIZATION IN FLUIDIZED BED REACTORS USING MODEL PREDICTIVE CONTROL Ahmad Shamiri1 Mohamed Azlan Hussain1 Farouq Sabri Mjalli2 Arash Arami-Niya1 1Department of Chemical Engineering University of Malaya 50603 Kuala

most continuous polymerization reactors is extremely sensitive to small changes in pro- 0272-1708/86/0800-0003 $01 OO Q 1986 IEEE Control cess parameters or operating conditions To illustrate consider the polymerization of vinyl acetate in aFig I [ll]

Emulsion polymerization: Polymerization whereby monomer(s) initiator dispersion medium and possibly colloid stabilizer constitute initially an inhomogeneous system resulting in particles of colloidal dimensions containing the formed polymer Note: With the exception of mini-emulsion polymerization the term "emulsion polymerization"

This chapter considers control systems design procedures for multivariable systems and their application to polymerization reactors The chapter discusses design procedures based on the assumption of linearity the resulting controllers should be tested on a full nonlinear simulation of the reactor control system prior to implementation

1 Modeling particle size distribution in emulsion polymerization reactors H M Vale and T F McKenna CNRS-LCPP/ESCPE-Lyon BP 2077 43 Blvd du 11 novembre 1918 69616 Villeurbanne Cedex France Abstract A review of the use and limitations of

Abstract Polymerization reactor type and operation conditions have a marked influence on polymer properties such as distribution of molecular weight chemical composition and particle size Due to the very nature of polymeric chains if the synthesized polymer

Multivariable Control of Polymerization Reactors

This chapter considers control systems design procedures for multivariable systems and their application to polymerization reactors The chapter discusses design procedures based on the assumption of linearity the resulting controllers should be tested on a full nonlinear simulation of the reactor control system prior to implementation

This reference and text provides an in-depth description of developments in control techniques and their application to polymerization reactors and offers important introductory background information on polymerization reaction engineering Discussing modelling

Ization the control of emulsion polymerization reactors is still Structure property relationships of most polymer materials is poorly understood and Control of polymerization reactors has always been a chal- lenging task molecular and morphological polymer

most continuous polymerization reactors is extremely sensitive to small changes in pro- 0272-1708/86/0800-0003 $01 OO Q 1986 IEEE Control cess parameters or operating conditions To illustrate consider the polymerization of vinyl acetate in aFig I [ll]

Emulsion polymerization in both batch and continuous reactors is a major processing step in the manufacture of polymer products such as paints inks coating adhesives high -impact strength copolymers etc Continuous emulsion

1 INTRODUCTION Emulsion polymerization in both batch and continuous reactors is a major processing step in the manufacture of polymer products such as paints inks coating adhesives high -impact strength copolymers etc Continuous

Tubular reactors Continuous tubular reactors have also been used for emulsion polymerization though to a lesser extent than semi-batch reactors and CSTRs [32 51] A wide range of reactors fall into this category namely: single-pass reactors continuous loop reactors packed beds etc

The current state and key issues in the modeling and control of polymerization reactors are surveyed The physical phenomena types of reactor models sensor hardware process monitoring strategies critical rontrol problems and rontrol system design strategies are among the issues discussed

1996/2/1Temeng and Schork (122) studied continuous emulsion MMA polymerization reactors and used adaptive controllers to control monomer conversion and particle size They observed that the controller would present excellent performance even in the

most continuous polymerization reactors is extremely sensitive to small changes in pro- 0272-1708/86/0800-0003 $01 OO Q 1986 IEEE Control cess parameters or operating conditions To illustrate consider the polymerization of vinyl acetate in aFig I [ll]