Simulation, optimization and parametric studies of a solid catalyzed gas phase ethylene polymerization fluidized bed reactor
A steady-state model incorporating interactions between separate bubbles and emulsion phases in a fluidized-bed polyethylene reactor is employed to study the effect of operating conditions on the stability of gas-phase polyethylene reactors. A simple optimization program is developed to find the opt...
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| Format: | Article |
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Society of Chemical Engineers, Japan
2005
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| author | Ghasem, N.M. Sulaiman, M.Z. Hussain, Mohd Azlan |
| author_facet | Ghasem, N.M. Sulaiman, M.Z. Hussain, Mohd Azlan |
| author_sort | Ghasem, N.M. |
| collection | UM |
| description | A steady-state model incorporating interactions between separate bubbles and emulsion phases in a fluidized-bed polyethylene reactor is employed to study the effect of operating conditions on the stability of gas-phase polyethylene reactors. A simple optimization program is developed to find the optimum combination of operating parameters at which the maximum polyethylene production rate is achieved with the constraints only on the reactor temperature, which should not exceed the melting point of polymer. Using the optimum values found, the parametric investigation for the effect of the catalyst deactivation rate constant and process operating parameters, such as the catalyst feed rate and the gas superficial to minimum fluidization velocity on system behavior are investigated. The investigations reveal that, the fluidized bed polyethylene reactor is prone to show unstable behavior and temperature oscillations, and the optimum polyethylene production rate could be achieved when it operates close to its melting point under a suitable controller to avoid polymer melting. Copyright © 20 |
| first_indexed | 2024-03-06T05:17:51Z |
| format | Article |
| id | um.eprints-7057 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:17:51Z |
| publishDate | 2005 |
| publisher | Society of Chemical Engineers, Japan |
| record_format | dspace |
| spelling | um.eprints-70572021-02-10T03:44:43Z http://eprints.um.edu.my/7057/ Simulation, optimization and parametric studies of a solid catalyzed gas phase ethylene polymerization fluidized bed reactor Ghasem, N.M. Sulaiman, M.Z. Hussain, Mohd Azlan TA Engineering (General). Civil engineering (General) TP Chemical technology A steady-state model incorporating interactions between separate bubbles and emulsion phases in a fluidized-bed polyethylene reactor is employed to study the effect of operating conditions on the stability of gas-phase polyethylene reactors. A simple optimization program is developed to find the optimum combination of operating parameters at which the maximum polyethylene production rate is achieved with the constraints only on the reactor temperature, which should not exceed the melting point of polymer. Using the optimum values found, the parametric investigation for the effect of the catalyst deactivation rate constant and process operating parameters, such as the catalyst feed rate and the gas superficial to minimum fluidization velocity on system behavior are investigated. The investigations reveal that, the fluidized bed polyethylene reactor is prone to show unstable behavior and temperature oscillations, and the optimum polyethylene production rate could be achieved when it operates close to its melting point under a suitable controller to avoid polymer melting. Copyright © 20 Society of Chemical Engineers, Japan 2005 Article PeerReviewed Ghasem, N.M. and Sulaiman, M.Z. and Hussain, Mohd Azlan (2005) Simulation, optimization and parametric studies of a solid catalyzed gas phase ethylene polymerization fluidized bed reactor. Journal of Chemical Engineering of Japan, 38 (3). pp. 171-175. ISSN 0021-9592, DOI https://doi.org/10.1252/Jcej.38.171 <https://doi.org/10.1252/Jcej.38.171>. http://www.scopus.com/inward/record.url?eid=2-s2.0-17144398466&partnerID=40&md5=4d8744a1edd7340090b19e1f68e30f12 doi:10.1252/Jcej.38.171 |
| spellingShingle | TA Engineering (General). Civil engineering (General) TP Chemical technology Ghasem, N.M. Sulaiman, M.Z. Hussain, Mohd Azlan Simulation, optimization and parametric studies of a solid catalyzed gas phase ethylene polymerization fluidized bed reactor |
| title | Simulation, optimization and parametric studies of a solid catalyzed gas phase ethylene polymerization fluidized bed reactor |
| title_full | Simulation, optimization and parametric studies of a solid catalyzed gas phase ethylene polymerization fluidized bed reactor |
| title_fullStr | Simulation, optimization and parametric studies of a solid catalyzed gas phase ethylene polymerization fluidized bed reactor |
| title_full_unstemmed | Simulation, optimization and parametric studies of a solid catalyzed gas phase ethylene polymerization fluidized bed reactor |
| title_short | Simulation, optimization and parametric studies of a solid catalyzed gas phase ethylene polymerization fluidized bed reactor |
| title_sort | simulation optimization and parametric studies of a solid catalyzed gas phase ethylene polymerization fluidized bed reactor |
| topic | TA Engineering (General). Civil engineering (General) TP Chemical technology |
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