Get access

Mathematical Model of Dynamic Crystallization of Ethylene/1-Octene Copolymers

Authors

  • Nuttawat Chokputtanawuttilerd,

    1. Department of Chemical Engineering, Faculty of Engineering, Kasetsart University, Bangkok, Thailand
    Search for more papers by this author
  • Siripon Anantawaraskul,

    Corresponding author
    1. Center for Advanced Studies in Nanotechnology and Its Applications in Chemical, Food and Agricultural Industries, Kasetsart University, Bangkok, Thailand
    • Department of Chemical Engineering, Faculty of Engineering, Kasetsart University, Bangkok, Thailand
    Search for more papers by this author
  • João B. P. Soares

    1. Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
    Search for more papers by this author

Correspondence to: S. Anantawaraskul

Summary

Dynamic crystallization (DC) is a fractionation technique to enhance physical separation of polymers with different chain crystallizabilities by crystallizing polymer chains from solution in a column under a constant flow rate. In this work, a mathematical model for describing fractionation mechanism of dynamic crystallization based on the concept of population balance, crystallization kinetic, and dispersion models is proposed by the first time. The model was validated with experimental DC analysis of three ethylene/1-octene copolymers. The simulated DC profiles were found to describe experimental results well.

Ancillary