Process for preparing polyolefins
AssigneeTotal Research & Technology Feluy
InventorsDaniel Siraux, Aurélien Vantomme, Eric Damme, Daan Dewachter
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Abstract
The present invention relates to a process of preparing a polyolefin in a loop reactor by introducing anti-fouling agent through a sleeve provided around at least part of the shaft of the pump. Also, the invention relates to the use of anti-fouling agent to prevent or reduce fouling by feeding the anti-fouling agent against the impeller of the pump upon introduction to the loop reactor.
Claims18
A process of preparing a polyolefin in a loop reactor in the presence of anti-fouling agent, said loop reactor comprising interconnected pipes, defining a reactor path, and an axial pump comprising a motor, a shaft and an impeller, characterized in that at least part of the anti-fouling agent is introduced into said loop reactor through a sleeve provided around at least part of the shaft of said axial pump.
A process for using anti-fouling agent to prevent or reduce fouling of a loop reactor during a polymerization process comprising a pump with a shaft and an impeller comprising introducing the anti-fouling agent into the loop reactor against a side of the impeller which is connected to the shaft of said pump.
Dependencies are inferred from the claim text.