FIELD: separation of gas-and-vapor mixtures. SUBSTANCE: device has three chromatographic columns. One column serves for regeneration of sorbent layer from heavy fraction of mixture and two other columns, for separation of mixture and removal of light fraction. Columns are coupled to one another by intermediate channels. Columns are divided into sections. Every section is filled so with sorbent selective to components of substance being separated. Gas-carrier is delivered from the first section and removed from the last section over diverting channel which passes through column and is filled with layer of immovable sorbent. EFFECT: higher efficiency. 7 dwg
