Simulation of absorption processes in nanoparticle catalysts
- In this contribution, we present a novel modeling approach for mass transport problems that connects the microscale with the macroscale. It is based on a proper investigation of the diffusion process in the catalytic pellets from which, after semi-analytic considerations, a source term for the macroscopic advection-diffusion process can be identified. For the special case of a spherical catalyst pellet, the parabolic partial differential equation at the microscale can be reduced to a single ordinary differential equation in time through the proposed semi-analytic approach. After the presentation of our model, we show results for its calibration against the macroscopic response of a mass transport experiment. Based thereon, the effective diffusion parameters of the catalyst pellet can be identified. Furthermore, we test the model's robustness by applying significant noise to virtual experimental datasets.
Author: | Maximilian KöhlerORCiDGND, Philipp JunkerORCiDGND, Daniel BalzaniORCiDGND |
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URN: | urn:nbn:de:hbz:294-110275 |
DOI: | https://doi.org/10.1002/pamm.202000076 |
Parent Title (English): | Proceedings in applied mathematics & mechanics |
Publisher: | Wiley |
Place of publication: | Weinheim |
Document Type: | Article |
Language: | English |
Date of Publication (online): | 2024/03/11 |
Date of first Publication: | 2021/01/25 |
Publishing Institution: | Ruhr-Universität Bochum, Universitätsbibliothek |
Volume: | 20 |
Issue: | 1, Artikel e202000076 |
First Page: | e202000076-1 |
Last Page: | e202000076-3 |
Note: | Dieser Beitrag ist auf Grund des DEAL-Wiley-Vertrages frei zugänglich. |
Institutes/Facilities: | Lehrstuhl für Mechanik - Kontinuumsmechanik |
Dewey Decimal Classification: | Technik, Medizin, angewandte Wissenschaften / Ingenieurbau, Umwelttechnik |
open_access (DINI-Set): | open_access |
faculties: | Fakultät für Bau- und Umweltingenieurwissenschaften |
Licence (English): | ![]() |