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DOE OSTI · 3001903

Adsorption Studies of Dilute Krypton and Xenon from Nitrogen on SBMOF-1 and Activated Charcoal for Applications in Isotope Harvesting

Bodnar, Vladyslav S. [Michigan State University, East Lansing, MI (United States)]·Kleinfeldt, Chloe R. [Michigan State University, East Lansing, MI (United States)]·Kim, Sung Ho [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)]·Catarineu, Noelle R. [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)]·Vyas, Chirag K. [Michigan State University, East Lansing, MI (United States)]·Visser, Ate [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)]·Severin, Gregory W. [Michigan State University, East Lansing, MI (United States)] (ORCID:0000000311897311)
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Abstract

Adsorptive partitioning of dilute krypton (Kr) and xenon (Xe) onto Stony Brook Metal–Organic Framework (SBMOF-1) and activated charcoal (AC) from carrier nitrogen was experimentally measured at temperatures ranging from 195 to 293 K. For this purpose, a closed-loop system for gas adsorption experiments was developed. From the Kr adsorption measurements, the adsorption equilibrium constant for Kr on SBMOF-1 was calculated, yielding a value for the enthalpy of adsorption of −19 ± 1 kJ·mol –1 . The partition coefficients were utilized to estimate the extraction rates of 76 Kr, 77 Kr, and 122 Xe isotopes during isotope harvesting at the Facility for Rare Isotope Beams (FRIB). We conclude that both materials showed promising results for the extraction of noble gases from FRIB effluents using temperature swing adsorption.

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRYAdsorptionExtractionGasesMetal organic frameworksPartition coefficient

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Bodnar, Vladyslav S. [Michigan State University, East Lansing, MI (United States)], Kleinfeldt, Chloe R. [Michigan State University, East Lansing, MI (United States)], Kim, Sung Ho [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)], Catarineu, Noelle R. [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)], Vyas, Chirag K. [Michigan State University, East Lansing, MI (United States)], Visser, Ate [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)], Severin, Gregory W. [Michigan State University, East Lansing, MI (United States)] (ORCID:0000000311897311). 2025-07-21. Adsorption Studies of Dilute Krypton and Xenon from Nitrogen on SBMOF-1 and Activated Charcoal for Applications in Isotope Harvesting. https://doi.org/10.1021/acs.jpcc.5c02812

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