Controlling a polyolefin reaction

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United States of America Patent

PATENT NO 9718896
APP PUB NO 20150210782A1
SERIAL NO

14424819

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Abstract

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Methods and systems for controlling a polymerization reaction in a non-sticking regime are disclosed. An exemplary method includes measuring parameters for the polymerization reaction including a reactor temperature and a concentration of an induced condensing agent (ICA) in a polymerization reactor. An equivalent partial pressure ((PICA)equiv) of the ICA is calculated. The polymerization reaction is located in a two dimension space defined by a reactor temperature dimension and a ((PICA)equiv) dimension. The location in the two dimensional space is compared to an non-sticking regime, defined as the space between an upper temperature limit (UTL) curve and a lower temperature limit (LTL) curve. The parameters of the polymerization reaction are adjusted to keep the polymerization reaction within the non-sticking regime.

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Patent Owner(s)

  • UNIVATION TECHNOLOGIES, LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cao, Xianyi Pearland, US 6 20
Glowczwski, David M Baytown, US 25 239
Hari, Abarajith S Ridgecrest, US 6 38
Savatsky, Bruce J Kingwood, US 45 194

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