Demonstrate the removal efficiency and capacity of MOF materials for krypton recovery

Thallapally, Praveen K. ; Liu, Jian ; Strachan, Denis M.

关键词: metal organic framework;    noble gas removal;    nuclear fuel reprocessing;    krypton;    xenon;   

DOI  :  10.2172/1111231
RP-ID  :  PNNL-22693
PID  :  OSTI ID: 1111231
Others  :  Other: AF5805000

美国|英语

来源: SciTech Connect

【 摘 要 】

Metal organic framework materials (MOFs) were developed and tested in support of the U.S. Department of Energy Office of Nuclear Energy, Fuel Cycle Technology Separations and Waste Forms Campaign. Specifically, materials are being developed for the removal of xenon (Xe) and krypton (Kr) from gaseous products of nuclear fuel reprocessing unit operations. Two metal organic framework structures were investigated in greater detail to demonstrate the removal efficiency and capacity of MOF materials for krypton recovery. Our two bed breakthrough measurements on NiDOBDC and FMOFCu indicate these materials can capture and separate parts per million levels of Xe and Kr from air. The removal efficiency and adsorption capacity for Kr on these two MOFs were further increased upon removal of Xe upfront.