Device and process for preparing a feed stream for solution polymerization

A process for preparing a feed stream for a solution polymerization in a feed vessel, the feed stream comprising at least one solvent, at least one reactant and optionally hydrogen, the process comprising the steps of:

• (i) providing at least one fresh liquid stream comprising the at least one solvent and optionally the at least one reactant;
• (ii) providing at least one recycle liquid stream comprising the at least one solvent and the at least one reactant;
• (iii) providing at least one vapour recycle vapour stream comprising the at least one reactant;
• (iv) contacting the at least one recycle vapour stream with the at least one recycle liquid stream yielding a contacted recycle liquid stream and a contacted recycle vapour stream;
• (v) contacting the contacted recycle vapour stream with the at least one fresh liquid stream yielding a contacted fresh liquid stream and a waste vapour stream;
• (vi) combining the contacted fresh liquid stream with the contacted recycle liquid stream yielding the feed stream;
• (vii) withdrawing the waste vapour stream by a waste outlet positioned at a top zone of the feed vessel;
• (viii) withdrawing the feed stream by a feed outlet positioned at a bottom zone of the feed vessel, wherein
• in step (i) the at least one fresh liquid stream is provided by a first inlet into or on top of an absorber (7), wherein the first inlet is positioned at the absorber,
• in step (ii) the at least one recycle liquid stream is provided by a second inlet, wherein the second inlet is positioned below the first inlet,
• in step (iii) the at least one recycle vapour stream is provided by a third inlet, wherein the third inlet is positioned below the second inlet and above the feed outlet.