Process and plant for purification by adsorption on activated carbon and corresponding adsorber vessel

摘要

PCT No. PCT/FR86/00132 Sec. 371 Date Dec. 22, 1986 Sec. 102(e) Date Dec. 22, 1986 PCT Filed Apr. 22, 1986 PCT Pub. No. WO86/06295 PCT Pub. Date Nov. 6, 1986.A gas is purified by adsorption on activated carbon contained in an adsorber vessel. The carbon is desorbed by passing an inert gas therethrough at a sufficiently high temperature. The desorbed impurity is removed by refrigeration and the refrigeration is supplied by the vaporization of an inert gas in liquid phase. This vaporized inert gas, in turn, comprises the desorption gas.