Fremgangsmåte for regenerering av et törkemiddel

• Main Authors: LARUE, JOSEPH, LERMITE, CHRISTOPHE, AMANDE, JEAN-CLAUDE, CHAMBON, BERNARD
• Format: Patent
• Language: Norwegian
• Published: 20.05.1994
• Edition: 5
• Subjects: GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS; TRANSPORTING

Process for regenerating a liquid desiccant, employing a stripping agent which is liquid at ambient temperature and pressure and which forms a heteroazeotrope with water, which comprises: a) a stage of reboiling (R1) the water-laden liquid desiccant; b) a stage of distilling (D1) the said desiccant, comprising at least one rectification stage; c) a stage of stripping (S1) the liquid desiccant partially regenerated during stages a and b, using the vaporised stripping agent; d) a stage for condensing (C1) the vapour leaving the distillation stage b, condensation generating two liquid phases, one with water predominating (9), the other with stripping agent predominating (10); e) heating (E3) the stripping agent-rich liquid phase originating from stage d, heating generating a vapour phase (12) which is richer in water than the said liquid phase and a liquid phase depleted in water; f) returning the liquid phase originating from stage e towards stage c.