Univation Technologies, LLC

Unication Technolofies, LLC

Ke Nguyen

Michael E Muhle

C Stuart Daw

Charles E A Finney

Stuart C Daw

Charles Ea Finney

Charles Finney

Stuart Daw

Michael M Muhle

In some embodiments, a method of monitoring a resin-producing polymerization reaction in a fluid bed reactor system to generate reaction parameter data in on-line fashion, determining an indicator of at least one of entropy and complexity (for example, Kolmogorov or Shannon entropy) of each of at least two subsets of the reaction parameter data, and optionally also determining from at least one value of the indicator (for example, from a time series of Kolmogorov or Shannon entropy values) an indication of at least one of degree of resin stickiness, an approach to or imminence of resin stickiness, and an approach to or imminence of an unsafe or undesired reactor operating condition (e.g., that can result in sheeting or chunking). Optionally also, the reaction is controlled in response to at least one value of the indicator, for example, in an effort to prevent the occurrence of sheeting or another discontinuity event or to maintain the reactor in a stable, non-sticking condition.

Method for polymerization reaction monitoring with determination of entropy of monitored data

The present invention describes a method for determining reactor continuity of a polymerization reactor by non-linear dynamics. Specifically, the invention relates to a method of analyzing system variables to indicate gas phase reactor continuity in real-time and controlling the reactor continuity to maintain operability.

Method of applying non-linear dynamics to control a gas-phase polyethylene reactor operability

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Knoxville, TN, United States of America

Ke Nguyen