PROCESS FOR THE RECONCENTRATION OF GASEOUS MIXTURES DEYDRATING LIQUIDS

摘要

A process for the re-concentration of diluted dehydrating liquids, said dehydrating liquids once re-concentrated being used in the dehydration plants of gaseous mixtures, said process comprising a step related to the distillation of said diluted dehydrating liquids and a stripping step using an inert gas as stripping gas, said process comprising the following steps: (a) cooling the gases coming out from said distillation (2) at a temperature lower than 35°C so producing a first condensed phase and a first gaseous phase in the condenser (4); (b) a first separation in the separator (5) of the first gaseous phase obtained in step (a) from the first condensed phase produced in step (a); (c) compressing in the compressor (6) the first gaseous phase obtained at the end of step (b); (d) cooling the compressed first gaseous phase obtained in step (c) at a temperature lower than 35°C so producing a second gaseous phase and a second condensed phase; (e) a second separation in the second separator (7) of the second gaseous phase obtained in step (d) from the second condensed phase produced in step (d); (f) dehydration in the drier (8) of the second gaseous phase obtained in step (e) so obtaining a re- concentrated dehydrating liquid; (g) stripping in stripper (3) said re-concentrated dehydrating liquid.