A 2-D Observer to Estimate the Reaction Rate in a Stopped Flow Fixed Bed Reactor for Gas Phase Olefin Polymerization

被引：2

作者：

Browning, Barbara ^{[1
,2
]}

Sheibat-Othman, Nida ^{[3
]}

Pitault, Isabelle ^{[1
]}

McKenna, Timothy F. L. ^{[2
]}

机构：

[1] Univ Lyon, CPE Lyon, LGPC, CNRS,UMR5285, F-69616 Villeurbanne, France

[2] Univ Lyon 1, CPE Lyon, Lab Chim Catalyse Polymeres & Procedes C2P2, CNRS,UMR 5265,LCPP Grp, F-69616 Villeurbanne, France

[3] Univ Lyon 1, LAGEP, CPE Lyon, CNRS,UMR 5007, F-69616 Villeurbanne, France

来源：

AICHE JOURNAL | 2014年 / 60卷 / 10期

关键词：

state estimator; reactor modeling; olefin polymerization; nascent polymerization; UNSCENTED KALMAN FILTER; HEAT-TRANSFER; SIZE DISTRIBUTION; STATE ESTIMATION; DESIGN;

D O I：

10.1002/aic.14538

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A two-dimensional high gain observer has been constructed to estimate the reaction rate parameters in a laboratory scale stopped flow fixed bed reactor for gas phase ethylene polymerization. The observer is based on the heat balances of a validated model of the reactor and the measured variable is the outlet temperature of the fixed bed. To create an observable system of equations, the polymerization rate is considered in two parts, an activation energy term and a lumped parameter. The effective radial conductivity in the fixed bed and the heat-transfer coefficient at the wall are considered separately. The polymerization rate is calculated from the observer results and is in good agreement with the measured data and calculated values. (c) 2014 American Institute of Chemical Engineers AIChE J, 60: 3511-3523, 2014

引用

页码：3511 / 3523

页数：13

共 31 条

[1] A robust monitoring tool for distributed parameter plug flow reactors [J].

Aguilar-Garnica, Efren ;

Paulo Garcia-Sandoval, Juan ;

Gonzalez-Figueredo, Carlos .

COMPUTERS & CHEMICAL ENGINEERING, 2011, 35 (03) :510-518

[2] Constrained nonlinear predictive control for maximizing production in polymerization processes [J].

Alamir, Mazen ;

Sheibat-Othman, Nida ;

Othman, Sami .

IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, 2007, 15 (02) :315-323

[3] Optimal sensor location and reduced order observer design for distributed process systems [J].

Alonso, AA ;

Kevrekidis, IG ;

Banga, JR ;

Frouzakis, CE .

COMPUTERS & CHEMICAL ENGINEERING, 2004, 28 (1-2) :27-35

[4]

[Anonymous], GBI RES REP

[5] Dynamic modelling of a stopped flow fixed bed reactor for gas phase olefin polymerisation [J].

Browning, B. ;

Pitault, I. ;

Sheibat-Othman, N. ;

Tioni, E. ;

Monteil, V. ;

McKenna, T. F. L. .

CHEMICAL ENGINEERING JOURNAL, 2012, 207 :635-644

[6] State observers for tubular reactors with unknown kinetics [J].

Dochain, D .

JOURNAL OF PROCESS CONTROL, 2000, 10 (2-3) :259-268

[7] Observer design for particle size distribution in emulsion polymerization [J].

Edouard, D ;

Sheibat-Othman, N ;

Hammouri, H .

AICHE JOURNAL, 2005, 51 (12) :3167-3185

[8] FIXED BED CATALYTIC REACTORS - CURRENT DESIGN STATUS [J].

FROMENT, GF .

INDUSTRIAL AND ENGINEERING CHEMISTRY, 1967, 59 (02) :18-&

[9] OBSERVABILITY FOR ANY U(T) OF A CLASS OF NON-LINEAR SYSTEMS [J].

GAUTHIER, JP ;

BORNARD, G .

IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 1981, 26 (04) :922-926

[10] A SIMPLE OBSERVER FOR NONLINEAR-SYSTEMS APPLICATIONS TO BIOREACTORS [J].

GAUTHIER, JP ;

HAMMOURI, H ;

OTHMAN, S .

IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 1992, 37 (06) :875-880

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