Polymerization Reactors

Pladis, Prokopis; Kiparissides, Costas

doi:10.1016/b978-0-12-409547-2.10908-4

Cited by 2 publications

(1 citation statement)

References 15 publications

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“…Fluidized bed reactors exhibit fluid-like properties, rendering them sensitive to variations in temperature and pressure [ 1 , 2 , 3 ]. Safety is a crucial concern when operating any chemical reactor, including fluidized bed reactors utilized for polymerization processes [ 4 ]. It is essential to conduct a thorough analysis of the thermal behavior of these reactors under different conditions in respect to potential reactions and the formation of spots [ 5 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

Transient Behavior and Control of Polyethylene Production in a Fluidized Bed Reactor Utilizing Population Balance Model

Ghasem

2024

IJMS

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In this study, a fluidized bed reactor for polyethylene production was employed using a dry mode approach, where the recycle stream may contain components of a nature that cannot be condensed through standard cooling. To analyze the behavior of the fluidized bed reactors during the copolymerization of ethylene with butene, a dynamic population balance model was employed. The study includes sensitivity analyses through computer simulations to examine the variations in reactor temperature, molecular weights, catalyst feed rate, and monomer/comonomer concentrations in the fluidized bed reactor. It is noteworthy that the reactor exhibits instability under normal operational conditions and is sensitive to changes in the catalyst feed rate and coolant temperature of the heat exchanger. The findings also highlight challenges such as temperature fluctuations above the polymer melting point. This underscores the importance of implementing a temperature control system to prevent issues like reactor shutdown due to elevated temperatures. Dynamic instabilities were observed under specific circumstances and were successfully controlled using Proportional Integral Derivative (PID) control strategies. The population balance model is essential for understanding the complexity of transient polymerization reactions. It enables researchers to simulate and optimize polymerization processes by utilizing the detailed kinetics of the reaction.

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Section: Introductionmentioning

confidence: 99%

Transient Behavior and Control of Polyethylene Production in a Fluidized Bed Reactor Utilizing Population Balance Model

Ghasem

2024

IJMS

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Synthesis of Molecular Imprinted Polymer Salbutamol Using Methacrylic Acid Monomer and Trimethyl Propane Trimethacrylate (Trim) as a Cross-Linker Through Suspension Polymerization

2022

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Objective: This study aims to determine the analytical performances and characteristics of MIP salbutamol made with methacrylic acid (MAA) monomer and trimethylpropane trimethacrylate (TRIM) cross-linker through suspension polymerization. Methods: The MIP salbutamol was synthesized using suspension polymerization. The analytical performances of MIP, such as the adsorption ability, adsorption capacity and selectivity, were evaluated by Spectrophotometer UV-Vis. The physical characterization of MIP and NIP were evaluated using FTIR, TEM-EDS, Brunauer-Emmett-Teller (BET) method and Barret-Joyner-Halenda (BJH) method. Results: Molecular Imprinted Polymer (MIP) showed better analytical performance than Non-Imprinted Polymer (NIP), the adsorption ability of MIP and NIP reached about 90.43% and 53.92%, respectively. The MIP was selective for salbutamol when compared to terbutaline and salmeterol xinafoate with an imprinting factor (IF) of 1.2841. The MIP has spherical shape particles with diameters in the range of 10-100 µm with a surface area of 185.546 m2/g, pore volume of 0.257 cm3/g, and pore size of 16.599 Å. Conclusion: The Based on these results, MIP salbutamol, has the potential to be developed as a method for the preparation of salbutamol analysis from biological samples.

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Polymerization Reactors

Cited by 2 publications

References 15 publications

Transient Behavior and Control of Polyethylene Production in a Fluidized Bed Reactor Utilizing Population Balance Model

Transient Behavior and Control of Polyethylene Production in a Fluidized Bed Reactor Utilizing Population Balance Model

Synthesis of Molecular Imprinted Polymer Salbutamol Using Methacrylic Acid Monomer and Trimethyl Propane Trimethacrylate (Trim) as a Cross-Linker Through Suspension Polymerization

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