A portion of the carbon dioxide product stream is utilized in the PSA unit as a cocurrent purge at a pressure preferably above the operating pressure of the carbon dioxide PSA unit to obtain {HEAD ~ a product} of {TAIL ~ higher purity} 
of
A portion of the carbon dioxide product stream is utilized in the PSA unit as a cocurrent purge at a pressure preferably above the operating pressure of the carbon dioxide PSA unit to obtain { HEAD ~ a product } of { TAIL ~ higher purity }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL