Dynamic model for polyethylene production in a multizone circulating reactor

Nayef M. Ghasem, Wee Lee Ang, Mohamed Azlan Hussain

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


The multizone circulating reactor (MZCR) technology is a newly announced reactor design for solid-catalyzed gas-phase polymerization. The process is characterized by two hydrodynamically distinct but interconnecting polymerization zones, thus forming a continuous loop of polymer flow between the said zones. In the present study, a dynamic model for the MZCR reactor is developed to illustrate the basic dynamic behavior of the new reactor design; the model is used to study the copolymerization of ethylene with butene. Several parameter sensitivity analyses are performed to show the computer-simulated time responses for reactor temperature, number-average molecular weight, weight-average molecular weight, catalyst feed rate and the monomer concentration along the reactor length.

Original languageEnglish
Article number1
JournalChemical Product and Process Modeling
Issue number1
Publication statusPublished - Feb 4 2008


  • Fluidized bed
  • MZCR
  • Polyethylene
  • Polymerization

ASJC Scopus subject areas

  • General Chemical Engineering
  • Modelling and Simulation


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