The hydrogen PSA unit effluent is dried and introduced into {TAIL ~ a carbon dioxide PSA unit} which forms a carbon dioxide rich recycle stream, {HEAD ~ a carbon dioxide rich product stream} and a hydrogen rich stream 
The hydrogen PSA unit effluent is dried and introduced into { TAIL ~ a carbon dioxide PSA unit } which forms a carbon dioxide rich recycle stream , { HEAD ~ a carbon dioxide rich product stream } and a hydrogen rich stream
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH