  Constant ingress of impurities in Muon Campus g-2 experiment at Fermilab has
resulted in reduction of efficiency of cryogenic expanders and occasional
undesired downtime to flush the impurities. Due to insufficiency of current 60
g/s mobile purifier, a full flow purifier is designed to be used in Muon Campus
which purifies 240 g/s of Helium throughput of 4 compressors through charcoal
bed at 80 K and returns ambient Helium back to the system. The purifier is
designed to be operated near liquid Nitrogen temperature during cold operations
and up to 400 K during regeneration. Both warm and cold operational range of
the purifier has required use of appropriate clearances in design due to
expansion and contraction. The vessel of around 16 ft height which is designed
to be operated vertically is to be shipped horizontally. The asymmetrical
position of heavy stainless steel heat exchanger in the purifier support frame
and 5g vertical load design consideration for shipping has required use of
shipping supports and heat exchanger rotational stops to comply with design
requirements. FEA of purifier system is performed in cold, warm and shipping
cases to verify that the purifier satisfies the design requirements.
