Original scientific paper

Mathematical Model and Simulation of the Dynamics of the Low Density Polyethylen Polymerization Process in the Tubalar Reactor

Dražen LONČAR ; Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Zagreb, Croatia
Marko BAN ; Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Zagreb, Croatia
Kristijan HORVAT ; Electrical Engineering Institute Inc., Zagreb, Croatia

Abstract

The mathematical model of the dynamics of thermohydraulic processes in
a high pressure tubular reactor for production of low-density polyethylen
has been presented. The equations of the mathematical model have been
formulated based on one-dimensional fluid flow assumptions. Polyethylen
production has been modelled by multivaribale, nonlinear function defining
dependence on temperature, concentration and flow velocity. Simulations
results of typical operating conditions (start-up, regular operation, transient
response to coolant temperature changes) provide a realistic description of
the process.

Keywords

Mathematical model; Polymerization; Process dynamics; Simulation; Tubular reactor

Hrčak ID:

64423

URI

https://hrcak.srce.hr/64423

Publication date:

30.6.2010.

Article data in other languages: croatian

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