Optimal Design of Ring-Shaped Alumina Catalyst: A Way to Intensify Bioethanol-to-Ethylene Production in Multi-Tubular Reactor Научная публикация
| Журнал |
Chemical Engineering Research and Design
ISSN: 0263-8762 , E-ISSN: 1744-3563 |
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| Вых. Данные | Год: 2019, Том: 145, Страницы: 1-11 Страниц : 10 DOI: 10.1016/j.cherd.2019.02.041 | ||
| Ключевые слова | Ring-shaped catalyst; Effectiveness factor of the catalyst; Dehydration of ethanol to ethylene; Tubular reactor; Process intensification; 2D Mathematical model | ||
| Авторы |
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| Организации |
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Информация о финансировании (1)
| 1 | Федеральное агентство научных организаций России | 0303-2016-0017 |
Реферат:
Among other things, the process intensification (PI) pursues the goals of enhancing the process capacity, or downsizing the reactor. The present work is focused on the intensification of catalytic ethanol-to-ethylene dehydration process in multi-tubular reactor by applying the ring-shaped particles of the optimal geometric sizes instead of conventional granules. A new simulating approach allowed us to select the optimal sizes of rings under wide variation of their height h, inner diameter d and outer diameter D. Reducing the equivalent size of pellets (ratio of volume Vp to surface Fp) from 71 to 32 ×10-5 m leads to an increase in the effectiveness factor η from 0.46 to 0.76, thus enhancing catalyst activity due to less intraparticle diffusion. The impact of various factors on the total enhancement of ethylene productivity over ring-shaped catalysts was examined and compared to that over cylinders (Vp/Fp = 71×10-5 m). Increase in effectiveness factor plays the major role, while heat and mass transfer parameters contribute less than 8%. Our study revealed that at a fixed ethanol conversion, PI due to the optimal geometric sizes may be expressed either as 2.1-fold increase in the reactor capacity, or as respective reduction in the tubes quantity. Both options may result in a significant improvement of the process performance.
Библиографическая ссылка:
Ovchinnikova E.V.
, Banzaraktsaeva S.P.
, Chumachenko V.A.
Optimal Design of Ring-Shaped Alumina Catalyst: A Way to Intensify Bioethanol-to-Ethylene Production in Multi-Tubular Reactor
Chemical Engineering Research and Design. 2019. V.145. P.1-11. DOI: 10.1016/j.cherd.2019.02.041 WOS Scopus РИНЦ РИНЦ CAPlus OpenAlex
Optimal Design of Ring-Shaped Alumina Catalyst: A Way to Intensify Bioethanol-to-Ethylene Production in Multi-Tubular Reactor
Chemical Engineering Research and Design. 2019. V.145. P.1-11. DOI: 10.1016/j.cherd.2019.02.041 WOS Scopus РИНЦ РИНЦ CAPlus OpenAlex
Даты:
| Поступила в редакцию: | 29 окт. 2018 г. |
| Принята к публикации: | 27 февр. 2019 г. |
| Опубликована online: | 8 мар. 2019 г. |
| Опубликована в печати: | 1 мая 2019 г. |
Идентификаторы БД:
| Web of science: | WOS:000469896500001 |
| Scopus: | 2-s2.0-85063024872 |
| РИНЦ: | 38670422 | 41788111 |
| Chemical Abstracts: | 2019:473001 |
| OpenAlex: | W2921190563 |