Method and apparatus for reducing fouling

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United States of America Patent

PATENT NO 9637570
SERIAL NO

12483057

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Abstract

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Provided herein is a method for operating a slurry polymerization reaction system to reduce, inhibit, and/or prevent fouling in the polymer recovery and separation apparatus, including one or more portions of a high pressure flash tank. The method generally comprises polymerizing a monomer feed in a slurry polymerization reactor in the presence of catalyst and diluent to produce a polymerization effluent; continuously discharging at least a portion of said polymerization effluent from the reactor through a discharge valve; combining a catalyst poison stream with the polymerization effluent downstream of said discharge valve, wherein the catalyst poison stream comprises a catalyst poison that is a gas at standard conditions; and flashing the combination of polymerization effluent and catalyst poison stream in a first flash tank.

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Patent Owner(s)

Patent OwnerAddress
EXXONMOBIL CHEMICAL PATENTS INC22777 SPRINGWOODS VILLAGE PKWY TECH & IP LAW SPRING TX 77389

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Towles, Thomas W Baton Rouge, US 20 790

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