{HEAD ~ A gas separation device} for {TAIL ~ the removal} of carbon oxides from a hydrogen rich gas stream in the form of a composite comprising a hydrogen diffusion membrane and a methanation catalyst 
for
{ HEAD ~ A gas separation device } for { TAIL ~ the removal } of carbon oxides from a hydrogen rich gas stream in the form of a composite comprising a hydrogen diffusion membrane and a methanation catalyst
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH