Mathematical Modeling of the Dehydrating Ethanol to Ethylene Process in a Multitubular Reactor on a Ring-Shaped Alumina Catalyst
- Authors: Ovchinnikova E.V.1, Banzaraktsaeva S.P.1, Kalugina E.A.1, Chumachenko V.A.1
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Affiliations:
- Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences
- Issue: Vol 11, No 1 (2019)
- Pages: 80-86
- Section: Engineering Problems. Operation and Production
- URL: https://journal-vniispk.ru/2070-0504/article/view/203076
- DOI: https://doi.org/10.1134/S2070050419010082
- ID: 203076
Cite item
Abstract
The process of dehydrating ethanol to ethylene by varying geometrical dimensions of a ring-shaped alumina catalyst is studied using a mathematical 2D model of a multitubular reactor. The set of ring sizes determines equivalent grain size Req, on which catalyst’s effectiveness factor η depends in turn. A procedure is proposed for assigning grains with different geometric dimensions to four structural groups, depending on the technique used to synthesize samples with the same equivalent size Req. Based on this approach, a system of criteria is developed for selecting catalyst grains with the best characteristics for given conditions. The geometric sizes of grains and other parameters that ensure the highest ethylene yield at the lowest values of the pressure drop and the residence time are determined.
About the authors
E. V. Ovchinnikova
Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences
Author for correspondence.
Email: evo@catalysis.ru
Russian Federation, Novosibirsk, 630090
S. P. Banzaraktsaeva
Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences
Email: evo@catalysis.ru
Russian Federation, Novosibirsk, 630090
E. A. Kalugina
Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences
Email: evo@catalysis.ru
Russian Federation, Novosibirsk, 630090
V. A. Chumachenko
Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences
Email: evo@catalysis.ru
Russian Federation, Novosibirsk, 630090
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