ADSORPTION CONCENTRATOR Russian patent published in 1998 - IPC

FIELD: sorption processes. SUBSTANCE: concentrator of invention is designed for application in chemical engineering, metallurgical, and gas industries to dry and purify, and also to isolate various gases, such as oxygen, nitrogen, hydrogen, helium, and so on, as well as in petroleum processing to separate gasoline and kerosene fractions, etc. Adsorption concentrator contains two adsorbers, incoming gas treatment unit, receiver, and one gas, two discharge, and one bypass valves made in the form of single seven-line three-position valve, inlet of which being connected with treatment unit, four outlets being combined in pairs, and each pair, including gas channel and bypass channel, being connected to inlet of one of adsorbers, whereas two discharge channels disposed on the side of seven-line three-position valve inlet communicate with atmosphere. Two production and one bypass valves are made in the form of single fife- line three-position valve with normally opened combined outlets and closed inlet. Adsorber outlets are connected with bypass channels, two production channels on the side of fife-line three-position valve inlet are connected with receiver inlet, and these valves' control system has two controlling circuits. EFFECT: improved structure. 2 dwg