Process for the separation of a solution of homogeneous catalyst from crude MEG glycol and the purification of MEG glycol raw, apparatus for purification of MEG glycol for the separation of a solution of homogeneous catalyst from MEG gal. Icol gross and for the purification of MEG glycol, and the use of a process or apparatus

摘要

Process for the separation of a solution of homogeneous catalyst from crude MEG glycol and the purification of MEG glycol raw, apparatus for purification of MEG glycol for the separation of a solution of homogeneous catalyst from MEG gli Col gross and for the purification of MEG glycol, and the use of a process or apparatus.A process and an apparatus for the separation of a solution of a catalyst homogu00eanica, from raw MEG glycol (MEG) and for the purification of MEG, is exposed.The process comprises separating a solution of catalyst through the evaporation of crude and food raw MEG MEG a rectification section, a section for extraction, and then a section of pasteurisation, each section being operated in a pressure subatmosfu00e9rica 0,5 u00d7 105 NM U less.The sections of rectification and pasteurizing and a pressure lower than that of the section of the separation of the catalyst, in which the process provides a pressure differential across the sections of separation and rectification, and in which the raw MEG vapor phase from the section. Separation of catalyst is fed substantially as a supply of vapour phase to the rectification.The apparatus comprises a section of the separation of catalyst, a section of the rectification of MEG, a section of the extraction and a section of pasteurization, in which the sections of rectification and pasteurization of MEG are located in the interior of a column for purification of MEG, and The separation of the catalyst and is located in the column purification of MEG or in a vase the amount separated.And in that section of the separation provides an entry to the raw MEG rectification section of MEG and an outlet to the catalyst separately, in which the power input to the raw MEG rectification section, MEG is a supply input steam.