{HEAD ~ Active composite} consisting of a compressed support and of {TAIL ~ at least one agent} which is active towards a gas, the compressed support including recompressed expanded graphite which has a density of between 0.02 and 1.5 
consisting of
{ HEAD ~ Active composite } consisting of a compressed support and of { TAIL ~ at least one agent } which is active towards a gas , the compressed support including recompressed expanded graphite which has a density of between 0.02 and 1.5
HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH REL TAIL TAIL 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