Although fewer or greater adsorption beds can be utilized, it is preferred in the practice of the present invention that {TAIL ~ the hydrogen PSA unit} 38 contain {HEAD ~ four adsorption beds} 
Although fewer or greater adsorption beds can be utilized , it is preferred in the practice of the present invention that { TAIL ~ the hydrogen PSA unit } 38 contain { HEAD ~ four adsorption beds }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD