Modeling of Cone-Shaped Pellets for Catalytic Reactors
Modeling of cone-shaped catalytic pellets was performed for irreversible first order reaction by finite element method. Calculations were also made assuming core-shell cone-shaped pellets with inert cores or hollow cone-shaped catalysts immersed in an infinitely large medium. Parameters affecting ef...
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Taylor & Francis Group
2024-12-01
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| Series: | Journal of Chemical Engineering of Japan |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/00219592.2024.2317457 |
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| author | Young-Sang Cho |
| author_facet | Young-Sang Cho |
| author_sort | Young-Sang Cho |
| collection | DOAJ |
| description | Modeling of cone-shaped catalytic pellets was performed for irreversible first order reaction by finite element method. Calculations were also made assuming core-shell cone-shaped pellets with inert cores or hollow cone-shaped catalysts immersed in an infinitely large medium. Parameters affecting effectiveness factors (η) such as Thiele modulus (Φ) and cone-angle (β) were studied to compare the results from conventional spherical or cylindrical pellets. An increase of η could be predicted as β increased from cone-shaped pellets. Hollow cone-shaped pellets were also assumed for CSTR to confirm the enhanced performance of the reactor by a larger hollow core for large Φ. As a demonstrative application, cone-shaped pellets with insulated bottoms were considered for analysis of nano-cone arrays by calculating η of the nano-patterns. Assuming pseudo-steady state approximation, unsteady behaviors of reactors containing cone-shaped pellets were predicted for batch and fixed bed reactors by solving reaction-diffusion equations assuming pseudo-steady state approximation. A coated wall reactor with nano-cone arrays could be modeled for the prediction of steady-state concentration in the reaction system. In addition to Φ, β and the number density of nano-cones on the substrate were found to be important factors affecting the performance of the coated wall reactor. |
| format | Article |
| id | doaj-art-6e3fed6ca27640b497726cc3f6da9d30 |
| institution | Kabale University |
| issn | 0021-9592 1881-1299 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Chemical Engineering of Japan |
| spelling | doaj-art-6e3fed6ca27640b497726cc3f6da9d302024-12-19T15:13:29ZengTaylor & Francis GroupJournal of Chemical Engineering of Japan0021-95921881-12992024-12-0157110.1080/00219592.2024.2317457Modeling of Cone-Shaped Pellets for Catalytic ReactorsYoung-Sang Cho0Department of Chemical Engineering and Biotechnology, Tech University of Korea, 237 Sangidaehak-ro, Siheung-si, Gyeonggi-do15073, Republic of KoreaModeling of cone-shaped catalytic pellets was performed for irreversible first order reaction by finite element method. Calculations were also made assuming core-shell cone-shaped pellets with inert cores or hollow cone-shaped catalysts immersed in an infinitely large medium. Parameters affecting effectiveness factors (η) such as Thiele modulus (Φ) and cone-angle (β) were studied to compare the results from conventional spherical or cylindrical pellets. An increase of η could be predicted as β increased from cone-shaped pellets. Hollow cone-shaped pellets were also assumed for CSTR to confirm the enhanced performance of the reactor by a larger hollow core for large Φ. As a demonstrative application, cone-shaped pellets with insulated bottoms were considered for analysis of nano-cone arrays by calculating η of the nano-patterns. Assuming pseudo-steady state approximation, unsteady behaviors of reactors containing cone-shaped pellets were predicted for batch and fixed bed reactors by solving reaction-diffusion equations assuming pseudo-steady state approximation. A coated wall reactor with nano-cone arrays could be modeled for the prediction of steady-state concentration in the reaction system. In addition to Φ, β and the number density of nano-cones on the substrate were found to be important factors affecting the performance of the coated wall reactor.https://www.tandfonline.com/doi/10.1080/00219592.2024.2317457Cone-shaped pelletsChemical reactorsEffectiveness factor |
| spellingShingle | Young-Sang Cho Modeling of Cone-Shaped Pellets for Catalytic Reactors Journal of Chemical Engineering of Japan Cone-shaped pellets Chemical reactors Effectiveness factor |
| title | Modeling of Cone-Shaped Pellets for Catalytic Reactors |
| title_full | Modeling of Cone-Shaped Pellets for Catalytic Reactors |
| title_fullStr | Modeling of Cone-Shaped Pellets for Catalytic Reactors |
| title_full_unstemmed | Modeling of Cone-Shaped Pellets for Catalytic Reactors |
| title_short | Modeling of Cone-Shaped Pellets for Catalytic Reactors |
| title_sort | modeling of cone shaped pellets for catalytic reactors |
| topic | Cone-shaped pellets Chemical reactors Effectiveness factor |
| url | https://www.tandfonline.com/doi/10.1080/00219592.2024.2317457 |
| work_keys_str_mv | AT youngsangcho modelingofconeshapedpelletsforcatalyticreactors |