Xenon Recovery at Room Temperature using Metal-Organic Frameworks

Journal Article · Mon Jul 24 00:00:00 EDT 2017 · Chemistry - A European Journal

DOI:https://doi.org/10.1002/chem.201702668· OSTI ID:1394829

Elsaidi, Sameh K. ^[1]; Ongari, Daniele ^[2]; Xu, Wenqian ^[3]; Mohamed, Mona H. ^[4]; Haranczyk, Maciej ^[5]; Thallapally, Praveen K. ^[6]

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1. Physical and Computational Science Directorate, Pacific Northwest National Laboratory, Richland WA 99352 USA; Chemistry Department, Faculty of Science, Alexandria University, P. O. Box 426 Ibrahimia Alexandria 21321 Egypt
2. Laboratory of Molecular Simulation, Institut des Sciences et Ingeénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), Rue de l'Industrie 17 1951 Sion Valais Switzerland
3. X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne IL 60439 USA
4. Chemistry Department, Faculty of Science, Alexandria University, P. O. Box 426 Ibrahimia Alexandria 21321 Egypt
5. IMDEA Materials Institute, c/Eric Kandel 2 28906 Getafe, Madrid Spain
6. Physical and Computational Science Directorate, Pacific Northwest National Laboratory, Richland WA 99352 USA

Xenon is known to be a very efficient anesthetic gas but its cost prohibits the wider use in medical industry and other potential applications. It has been shown that Xe recovery and recycle from anesthetic gas mixture can significantly reduce its cost as anesthetic. The current technology uses series of adsorbent columns followed by low temperature distillation to recover Xe, which is expensive to use in medical facilities. Herein, we propose much efficient and simpler system to recover and recycle Xe from simulant exhale anesthetic gas mixture at room temperature using metal organic frameworks. Among the MOFs tested, PCN-12 exhibits unprecedented performance with high Xe capacity, Xe/O2, Xe/N2 and Xe/CO2 selectivity at room temperature. The in-situ synchrotron measurements suggest the Xe is occupied in the small pockets of PCN-12 compared to unsaturated metal centers (UMCs). Computational modeling of adsorption further supports our experimental observation of Xe binding sites in PCN-12.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE Office of Nuclear Energy (NE)
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 1394829
• Journal Information: Chemistry - A European Journal, Vol. 23, Issue 45; ISSN 0947-6539
• Publisher: ChemPubSoc Europe
• Country of Publication: United States
• Language: English