Pump for loop reactor

摘要

The present invention relates the use of a pump in a loop reactor for the production of polyethylene, as well as a reactor comprising such pump and methods for producing polyolefin by means of such reactor. The pump according to the invention is characterized in that it is an axial flow impeller circulation pump, wherein the impeller comprises 6 blades and wherein the pump is fixed on a spring supported frame. Use of the pump according to the present invention allows for preparation of homogeneous polyethylene products that meet high quality standards from the complicated ethylene polymerization mixtures while at the same time being produced with low energy consumption.

主权项

1. An axial pump for circulating an olefin polymerization slurry through a loop reactor comprising:
an impeller comprising at least 5 blades, wherein the axial pump is fixed on a spring supported frame, wherein the blades have a blade angle ranging between 24° and 26°.