Methods for monitoring reactor passivation for gas phase polymerization
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United States of America Patent
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May 18, 2010
Grant Date -
Feb 4, 2010
app pub date -
Aug 1, 2008
filing date -
Aug 1, 2008
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Expired
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Abstract
Methods and system for in-situ measurement of polymer growth within an olefin polymerization reactor are provided. The method includes polymerizing one or more olefins within a reactor at a first temperature sufficient to deposit a polymer coating therein. A second temperature is created within the reactor, and a rate of temperature change is measured from the first temperature to the second temperature. The rate of temperature change is correlated to a thickness of the polymer coating deposited within the reactor.
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