Intensification of catalytic processes through the pellet structuring: steady-state properties of a bifunctional catalyst pellet applied to generic chemical reactions and the direct synthesis of DME
Authors:
- Katarzyna Bizon,
- Krzysztof Skrzypek-Markiewicz,
- Dominik Pędzich,
- Natalia Reczek
Abstract
Structuring of different types of catalytic active centers at a single-pellet level appears to be a promising and powerful tool for integration and intensification of multistep solid-catalyzed chemical reactions. However, the enhancement in the product yield and selectivity strongly depends on the proper choice of the distribution of different catalysts within the pellet. To demonstrate potential benefits from properly designed catalyst pellet, numerical studies were conducted with the aid of the mathematical model of a single spherical bifunctional catalyst pellet. The analysis was performed both for a system of two generic chemical reactions and for a real process, i.e., direct synthesis of dimethyl ether (DME) from synthesis gas via methanol. Evaluation of the pellet performance was done for three arrangements of the catalytic active sites within the pellet, i.e., a uniform distribution of two types of catalytic active centers in the entire volume of the pellet, and two core–shell structures. It was demonstrated that, especially for the larger pellets typical for fixed-bed applications, the product yield might be significantly improved by selecting proper catalyst arrangements within the pellet.
- Record ID
- CUT7099a75ea6d34da5a31f8b39f3e9cf99
- Publication categories
- ;
- Author
- Journal series
- Catalysts, ISSN , e-ISSN 2073-4344, Monthly
- Issue year
- 2019
- Vol
- 9
- No
- 12
- Pages
- [1-22]
- Article number
- 1020
- Other elements of collation
- rys.; tab.; wykr.; Bibliografia (na s.) - 20-22; Bibliografia (liczba pozycji) - 43; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 9, Iss. 12, Spec. Iss.
- Substantive notes
- Special Issue: Computational Chemistry and Catalysis: Prediction and Design
- Keywords in English
- bifunctional catalyst pellet, process integration, direct DME synthesis, steady-state behavior
- DOI
- DOI:10.3390/catal9121020 Opening in a new tab
- URL
- https://www.mdpi.com/2073-4344/9/12/1020 Opening in a new tab
- Related project
- Modelowanie i symulacja dynamiki wielofunkcyjnych ziaren katalizatora. . Project leader at PK: , ,
Projects financed by NSC [Projekty finansowane przez NCN] - Language
- eng (en) English
- License
- Score (nominal)
- 100
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT7099a75ea6d34da5a31f8b39f3e9cf99/
- URN
urn:pkr-prod:CUT7099a75ea6d34da5a31f8b39f3e9cf99
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.