Suppression of fines in a fluid bed polyethylene process

Details Suppression of fines in a fluid bed polyethylene process Suppression of fines in a fluid bed polyethylene process

1996-10-02

1999-10-19

Wu, David W.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Removing and recycling removed material from an ongoing...

526 66, 526 74, 526 78, 526 79, 526901, C08F 234

Patent

active

059690615

ABSTRACT:
Disclosed is a method for controlling or reducing the amount of powder fines present in a polyethylene fluidized bed reactor. The method uses hydrocarbons that are inert with respect to the polymerization reaction, as well as using reactive olefins. The reduction of powder fines provides significant operating benefits in the fluid bed process, including reduced formation of powder agglomerates in the reactor and reduced fouling of equipment in the recycle gas stream.

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R. A. Hutchinson and W. H. Ray "Polymerization of Olefins through Heterogeneous Catalysis. VIII. Monomer Sorption Effects", Journal of Applied Polymer Science, vol. 41, 51-81.

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