Abstract
When exposed to moisture or oxygen, molten chloride salts produce corrosive impurities which degrade containment alloys. This can significantly decrease the lifetime and increase costs of molten-salt-based systems. To overcome this barrier, we designed and modeled an electrochemical purification cell to remove the corrosive impurity MgOH+. Various reactor architectures, including continuous stirred tank reactors (CSTRs) and plug flow reactors (PFRs) were investigated. Steady-state thermoelectric properties were evaluated using analytical methods, allowing assessment of the effects of structure and design parameters such as flow rate, cell length, and cross-sectional area of molten salt. The results suggest that our design could most effectively increase reliability and decrease costs of molten-chloride-salt-based systems by protecting them during continuous operation using an annular plug flow reactor.
| Original language | American English |
|---|---|
| Number of pages | 8 |
| DOIs | |
| State | Published - 2023 |
| Event | SolarPACES: Solar Power and Chemical Energy Systems: 27th International Conference on Concentrating Solar Power and Chemical Energy Systems - Online Duration: 27 Sep 2021 → 1 Oct 2021 |
Conference
| Conference | SolarPACES: Solar Power and Chemical Energy Systems: 27th International Conference on Concentrating Solar Power and Chemical Energy Systems |
|---|---|
| City | Online |
| Period | 27/09/21 → 1/10/21 |
Bibliographical note
See NREL/CP-5500-80088 for preprintNLR Publication Number
- NREL/CP-5500-88032
Keywords
- analytical modeling
- corrosion
- CSP
- electrochemical purification
- molten chloride salts