the present invention relates to a reactor system for a multimodal polyethylene polymerization process, comprising; (a) a first reactor; (b) a hydrogen removal unit arranged between the first reactor and a second reactor comprising at least one vessel connected with a depressurization equipment;preferably selected from vacuum pump, compressor, turbocharger, ejector or a combination thereof, the depressurization equipment allowing to set an operating pressure to a pressure in a range of 100 to 200 kpa (abs); (c) the second reactor; and (d) a third reactor and the use of a film thereof.
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