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DOE OSTI · 2573905

Benchtop-Scale High Temperature Molten Salt Electrochemical Reactors: Experimental Setup and Considerations

Hoover, Haley [National Renewable Energy Laboratory (NREL), Golden, CO (United States)]·Wu, Ivy [National Renewable Energy Laboratory (NREL), Golden, CO (United States)]·Olushina, Oluwatamilore [National Renewable Energy Laboratory (NREL), Golden, CO (United States)]·Bell, Robert [National Renewable Energy Laboratory (NREL), Golden, CO (United States)]·Rippy, Kerry [National Renewable Energy Laboratory (NREL), Golden, CO (United States)]
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Abstract

Molten salt electrochemical reduction (MSER) is the dominant production method for aluminum and titanium, and emerging technologies for producing other commodity metals with these highly electrified techniques have demonstrated promising results. However, the scale up of MSER of materials such as iron and silicon are limited by the challenging issues of materials compatibility and impurity control. This work describes an experimental MSER setup using both chloride and carbonate salts. This setup is designed for operations outside of a glovebox, which is practical from an industrial perspective, but creates unique challenges. This work serves as a practical guide to discuss some key operational difficulties such as temperature control, air and humidity, material compatibility, developing strong electrical measurements and techniques, and safety.

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRYelectrochemistrymolten salts

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Hoover, Haley [National Renewable Energy Laboratory (NREL), Golden, CO (United States)], Wu, Ivy [National Renewable Energy Laboratory (NREL), Golden, CO (United States)], Olushina, Oluwatamilore [National Renewable Energy Laboratory (NREL), Golden, CO (United States)], Bell, Robert [National Renewable Energy Laboratory (NREL), Golden, CO (United States)], Rippy, Kerry [National Renewable Energy Laboratory (NREL), Golden, CO (United States)]. 2025-05-28. Benchtop-Scale High Temperature Molten Salt Electrochemical Reactors: Experimental Setup and Considerations. https://doi.org/10.70163/2997-8947.1006

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