Gases from {HEAD ~ multiple locations} in {TAIL ~ the plant} may also be treated in accordance with the present invention 
in
Gases from { HEAD ~ multiple locations } in { TAIL ~ the plant } may also be treated in accordance with the present invention
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH