HIGH-PRESSURE POLYMERIZATION SYSTEM AND HIGH-PRESSURE POLYMERIZATION PROCESS FOR THE POLYMERIZATION OF ETHYLENICALLY UNSATURATED MONOMERS
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United States of America Patent
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Issued Date -
Dec 29, 2022
app pub date -
Dec 1, 2020
filing date -
Dec 1, 2020
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Abstract
A high-pressure polymerization system having a) a polymerization reactor and b) a reactor blow down system having b1) a reactor blow down vessel, having a circular design over a major portion P having a L/D-ratio in the range from 1.75 to 10.0 and containing an aqueous quenching medium, b2) a release line connecting the polymerization reactor with the reactor blow down vessel and having an outlet located above a maximum level for the aqueous quenching medium, b3) a first emergency valve in the release line to open and close fluid communication between the polymerization reactor and the reactor blow down system, and wherein the release line outlet has a joining piece having an angle (a) between the central axis and a tangent at the reactor blow down vessel in the range from 5° to 70° and the reactor blow down vessel has a vent stack containing a constricted section.
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