Screening assembly and process for screening polymer from an effluent stream at reduced levels of polymer entrainment

A screening assembly comprising

• a separating device (2) fluidly connected to a conduit for an effluent stream (a) comprising a polymer and a first mixture of hydrocarbons, wherein the separating device (2) is configured to separate the effluent stream (a) into a polymer-rich stream (b) and a polymer-lean vapor stream (c), wherein the separating device (2) comprises an inlet, a first outlet for withdrawing the polymer-rich stream (b), and a second outlet for withdrawing the polymer-lean vapor stream (c);
• and
• a first screening device (3) connected to the second outlet of the separating device (2) via a conduit for the polymer-lean vapor stream (c), wherein the first screening device (3) is configured to spray condensed vapor composition comprising a second mixture of hydrocarbons into the polymer-lean vapor stream (c) via a conduit for a condensed vapor composition stream (d) and to screen a screened condensed vapor composition stream (f) comprising the polymer and the condensed vapor composition from the polymer-lean vapor stream (c), wherein the first screening device (3) comprises an inlet, a first outlet for withdrawing a condensed phase and a second outlet for withdrawing a vapor phase wherein the separating device is a flash separator or a gravity separator, and the first screening device is a cyclone.