| abstract |
The invention relates to a macroporous adsorbent comprising pores having a pore volume (Vm) and an average pore diameter (dm), such as: Vm> = 0.5 cc. g-1 and dm> = 0.5 m, Vm and dm being determined by mercury porosimetry; their manufacturing process by a spheronization and lyophilization technique; and their use for separating or purifying gases, such as air, synthesis gases or hydrocarbons, in particular olefins. |