The influence of Ziegler-Natta and metallocene catalysts on polyolefin structure, properties, and processing ability

A Shamiri, MH Chakrabarti, S Jahan, MA Hussain… - Materials, 2014 - mdpi.com
50 years ago, Karl Ziegler and Giulio Natta were awarded the Nobel Prize for their discovery
of the catalytic polymerization of ethylene and propylene using titanium compounds and …

CFD simulation of fluidized bed reactors for polyolefin production–A review

MJH Khan, MA Hussain, Z Mansourpour… - Journal of Industrial and …, 2014 - Elsevier
This literature survey focuses on the application of computational fluid dynamics (CFD) in
various aspects of the fluidized bed reactor. Although fluidized bed reactors are used in …

Computational fluid dynamics modeling of gas-solid fluidized bed reactor: Influence of numerical and operating parameters

V Akbari, TNG Borhani, A Shamiri… - Experimental and …, 2024 - Springer
In this paper, the most influential parameters (numerical and operating parameters) affecting
the performance of fluidized bed reactors are studied. The investigated parameters are …

A review on modeling and control of olefin polymerization in fluidized-bed reactors

MR Abbasi, A Shamiri, MA Hussain - Reviews in Chemical …, 2019 - degruyter.com
This is a detailed review on olefin polymerization models, and the most recent process
control approaches used to control these nonlinear systems are presented. Great focus has …

Mathematical versus commercial software modeling for Ziegler-Natta catalyzed gas-phase polymerization in fluidized-bed reactors: A comparative review and …

ES Sbaaei, MM Kamal, TS Ahmed - Powder Technology, 2023 - Elsevier
Integrating different influencing aspects in Ziegler-Natta catalyzed gas-phase polymerization
industrial fluidized bed reactors (FBRs) is challenging and requires new modeling …

Modified two-phase model with hybrid control for gas phase propylene copolymerization in fluidized bed reactors

A Shamiri, SW Wong, MF Zanil, MA Hussain… - Chemical Engineering …, 2015 - Elsevier
In order to explore the dynamic behavior and process control of reactor temperature, a
modified two-phase dynamic model for gas phase propylene copolymerization in a fluidized …

[PDF][PDF] Ziegler–Natta Polymerization: HDPE, PP, LLDPE, and EPDM

YA Liu, N Sharma - … , Advanced Control and Data Analytics for …, 2023 - researchgate.net
This chapter presents a novel approach to modeling the manufacturing processes of
highdensity polyethylene (HDPE), polypropylene (PP), linear low-density polyethylene …

Control of industrial gas phase propylene polymerization in fluidized bed reactors

YK Ho, A Shamiri, FS Mjalli, MA Hussain - Journal of Process Control, 2012 - Elsevier
The control of a gas phase propylene polymerization model in a fluidized bed reactor was
studied, where the rigorous two phase dynamic model takes into account the polymerization …

Melt index prediction by aggregated RBF neural networks trained with chaotic theory

Z Zhang, T Wang, X Liu - Neurocomputing, 2014 - Elsevier
Melt index (MI) is considered as one of the most significant parameter to determine the
quality and the grade of the practical polypropylene polymerization products. In this paper …

Novel kinetic modeling strategy for industrial-scale UNIPOL polypropylene with Ziegler-Natta catalyst

Z Chen, Y Han, Z Geng - Chemical Engineering Journal, 2024 - Elsevier
Polypropylene (PP) is a synthetic resin with exceptional physical and chemical properties,
making it suitable for various household and industrial applications. However, as the …