Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2501.05225 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866909452708347904 |
|---|---|
| author | Weiss, Fiona J. Keim, Leon Wendel, Kai Class, Holger |
| author_facet | Weiss, Fiona J. Keim, Leon Wendel, Kai Class, Holger |
| contents | In systems with slow reaction kinetics, such as mineral dissolution processes, chemical equilibrium cannot be assumed and an accurate understanding of reaction rates is essential; discrepancies in parameter reporting can greatly affect simulation results. This technical note identifies an issue with the reporting of rate parameters for carbonate mineral dissolution in a widely used database for reactive transport modeling based on Palandri and Kharaka 2004. This misrepresentation leads to a considerable overestimation of reaction timescales. Using the simulators Reaktoro and DuMuX, we simulated a simple calcite dissolution batch test and compared the results to experimental data. By adjusting the parameter to align with established literature, we demonstrate an improved fit between simulated and experimental data. Discrepancies in reaction timescales were reduced by an order of magnitude, emphasizing the importance of regular validation of simulations with experimental data. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_05225 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Implementation Pitfalls for Carbonate Mineral Dissolution -- a Technical Note Weiss, Fiona J. Keim, Leon Wendel, Kai Class, Holger Computational Engineering, Finance, and Science In systems with slow reaction kinetics, such as mineral dissolution processes, chemical equilibrium cannot be assumed and an accurate understanding of reaction rates is essential; discrepancies in parameter reporting can greatly affect simulation results. This technical note identifies an issue with the reporting of rate parameters for carbonate mineral dissolution in a widely used database for reactive transport modeling based on Palandri and Kharaka 2004. This misrepresentation leads to a considerable overestimation of reaction timescales. Using the simulators Reaktoro and DuMuX, we simulated a simple calcite dissolution batch test and compared the results to experimental data. By adjusting the parameter to align with established literature, we demonstrate an improved fit between simulated and experimental data. Discrepancies in reaction timescales were reduced by an order of magnitude, emphasizing the importance of regular validation of simulations with experimental data. |
| title | Implementation Pitfalls for Carbonate Mineral Dissolution -- a Technical Note |
| topic | Computational Engineering, Finance, and Science |
| url | https://arxiv.org/abs/2501.05225 |