Kinetic Study of Ethanol Dehydration to Ethylene and Diethyl Ether in Catalytic Packed Bed Reactor Over ZSM-5 Catalyst
Dehydration of ethanol is one of the crucial processes as it is considered a green route for producing ethylene and diethyl ether and is promoted mainly by economics and environmental appeal. In this study, different kinetic models for ethanol dehydration to ethylene and diethyl ether were develope...
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| Format: | Article |
| Language: | English |
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University of Diyala
2023-04-01
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| Series: | Diyala Journal of Engineering Sciences |
| Subjects: | |
| Online Access: | https://djes.info/index.php/djes/article/view/1139 |
| _version_ | 1797842643019890688 |
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| author | Narin A. Aali Ghassan J. Hadi |
| author_facet | Narin A. Aali Ghassan J. Hadi |
| author_sort | Narin A. Aali |
| collection | DOAJ |
| description |
Dehydration of ethanol is one of the crucial processes as it is considered a green route for producing ethylene and diethyl ether and is promoted mainly by economics and environmental appeal. In this study, different kinetic models for ethanol dehydration to ethylene and diethyl ether were developed based on two parallel reactions and different mechanisms. Additionally, a mathematical model of a packed bed reactor was also suggested based on a set of hypotheses for investigating the axial concentration profile of ethanol. Kinetic parameters of each model were estimated by nonlinear regression analysis of obtained experimental data reported in the literature at temperatures between (523.15 – 623.15) K. The analysis showed that the single-site model I for ethylene formation and dual-site (LHHW) model for diethyl ether formation gave the best representation of experimental data compared to other proposed models. Kinetic parameters were found to be in good accordance with the Arrhenius equation with acceptable straight-line plots, and they have been satisfactorily correlated as functions of reaction temperature. The mathematical model presented a smooth linear change in ethanol concentration at various temperatures. The AARD% obtained for each chosen ethylene and diethyl ether formation model were about (1.4502-2.5978) and (0.9135-2.9394), respectively.
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| first_indexed | 2024-04-09T16:51:13Z |
| format | Article |
| id | doaj.art-66c708bcebf4419fb8f0fbf284031c54 |
| institution | Directory Open Access Journal |
| issn | 1999-8716 2616-6909 |
| language | English |
| last_indexed | 2024-04-09T16:51:13Z |
| publishDate | 2023-04-01 |
| publisher | University of Diyala |
| record_format | Article |
| series | Diyala Journal of Engineering Sciences |
| spelling | doaj.art-66c708bcebf4419fb8f0fbf284031c542023-04-21T12:18:04ZengUniversity of DiyalaDiyala Journal of Engineering Sciences1999-87162616-69092023-04-0116210.24237/djes.2023.16203Kinetic Study of Ethanol Dehydration to Ethylene and Diethyl Ether in Catalytic Packed Bed Reactor Over ZSM-5 Catalyst Narin A. Aali0Ghassan J. Hadi 1College of Engineering, Soran University, Erbil, IraqTechnical Institute, Northern Technical University, Adour, Iraq Dehydration of ethanol is one of the crucial processes as it is considered a green route for producing ethylene and diethyl ether and is promoted mainly by economics and environmental appeal. In this study, different kinetic models for ethanol dehydration to ethylene and diethyl ether were developed based on two parallel reactions and different mechanisms. Additionally, a mathematical model of a packed bed reactor was also suggested based on a set of hypotheses for investigating the axial concentration profile of ethanol. Kinetic parameters of each model were estimated by nonlinear regression analysis of obtained experimental data reported in the literature at temperatures between (523.15 – 623.15) K. The analysis showed that the single-site model I for ethylene formation and dual-site (LHHW) model for diethyl ether formation gave the best representation of experimental data compared to other proposed models. Kinetic parameters were found to be in good accordance with the Arrhenius equation with acceptable straight-line plots, and they have been satisfactorily correlated as functions of reaction temperature. The mathematical model presented a smooth linear change in ethanol concentration at various temperatures. The AARD% obtained for each chosen ethylene and diethyl ether formation model were about (1.4502-2.5978) and (0.9135-2.9394), respectively. https://djes.info/index.php/djes/article/view/1139DehydrationKinetic modelsMathematical modelingEthanol |
| spellingShingle | Narin A. Aali Ghassan J. Hadi Kinetic Study of Ethanol Dehydration to Ethylene and Diethyl Ether in Catalytic Packed Bed Reactor Over ZSM-5 Catalyst Diyala Journal of Engineering Sciences Dehydration Kinetic models Mathematical modeling Ethanol |
| title | Kinetic Study of Ethanol Dehydration to Ethylene and Diethyl Ether in Catalytic Packed Bed Reactor Over ZSM-5 Catalyst |
| title_full | Kinetic Study of Ethanol Dehydration to Ethylene and Diethyl Ether in Catalytic Packed Bed Reactor Over ZSM-5 Catalyst |
| title_fullStr | Kinetic Study of Ethanol Dehydration to Ethylene and Diethyl Ether in Catalytic Packed Bed Reactor Over ZSM-5 Catalyst |
| title_full_unstemmed | Kinetic Study of Ethanol Dehydration to Ethylene and Diethyl Ether in Catalytic Packed Bed Reactor Over ZSM-5 Catalyst |
| title_short | Kinetic Study of Ethanol Dehydration to Ethylene and Diethyl Ether in Catalytic Packed Bed Reactor Over ZSM-5 Catalyst |
| title_sort | kinetic study of ethanol dehydration to ethylene and diethyl ether in catalytic packed bed reactor over zsm 5 catalyst |
| topic | Dehydration Kinetic models Mathematical modeling Ethanol |
| url | https://djes.info/index.php/djes/article/view/1139 |
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