Javascript is not activated in your browser. This website needs javascript activated to work properly.
Du är här

Modelica Based Grade Change Optimization for a Polyethylene Reactor

  • Per-Ola Larsson
  • Niklas Andersson
  • Johan Åkesson (Assistant Professor)
  • Staffan Haugwitz
Publiceringsår: 2010
Språk: Engelska
Dokumenttyp: Konferensbidrag
Ytterligare information: Project=polygradechange


This paper presents a dynamic optimization procedure of grade changes of polyethylene production. The optimization is built upon a novel modular Modelica library containing e.g., non-linear DAE models for polyethylene reactors based on models currently used in nonlinear MPC of industrial reactors at Borealis AB. Using Optimica, which extends the Modelica language with constructs for optimization problems, and, a novel framework to translate such optimization problems into NLP problems, grade transition ptimization problems can be solved. The solution procedure and a transition xample with optimal inputs and outputs are given in the paper showing promising results.



  • Technology and Engineering
  • optimization
  • Modelica
  • chemical industry
  • grade change
  • polymerization


9th International Symposium on Dynamics and Control of Process Systems
Leuven, Belgium
  • LCCC

Box 117, 221 00 LUND
Telefon 046-222 00 00 (växel)
Telefax 046-222 47 20
lu [at] lu [dot] se

Fakturaadress: Box 188, 221 00 LUND
Organisationsnummer: 202100-3211
Om webbplatsen