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 constant stirred tank reactors (CSTRs) and plug flow reactors (PFRs) were investigated. Steady-state thermoelectric properties were evaluated, 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 |
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Number of pages | 11 |
State | Published - 2022 |
Event | SolarPACES 2021 - Duration: 27 Sep 2021 → 1 Oct 2021 |
Conference
Conference | SolarPACES 2021 |
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Period | 27/09/21 → 1/10/21 |
NREL Publication Number
- NREL/CP-5500-80088
Keywords
- analytical modeling
- corrosion
- CSP
- electrochemical purification
- molten chloride salts