| abstract |
FIELD: chemistry. n SUBSTANCE: invention relates to method of regeneration of purifying layer, located on vessel, which is applied in processes of olefin polymerisation, as well as to system of regeneration of purifying layer, which is located in vessel when said process is performed. Method applied cycle with open contour. Recirculation of part of medium, discharged from vessel, as composition subjected to recirculation, is realised. The remaining part is removed into atmosphere. Method includes the following stages: a) supply of inert gas, which is under first pressure P1; b) combining inert gas with subjected to recirculation composition, discharged from vessel, with obtaining regenerating composition, which is under second pressure P2; c) supply of regenerating composition into vessel in order to regenerate purifying layer. Subjected to recirculation composition is under third pressure P3 in such a way that P1>P2>P3. n EFFECT: elaboration of method and system of regeneration of purifying layer in one passage, which makes it possible to reduce inert gas consumption. n 22 cl, 9 dwg, 1 ex |