METHOD FOR MONITORING A POLYMERIZATION REACTION

摘要

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, wavelet transforming the reaction parameter data to generate frequency-domain data or determining kurtosis of each of at least two subsets of the reaction parameter data, and optionally also determining from the frequency-domain data or kurtosis 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 that can result in sheeting or chunking. Optionally also, the reaction is controlled in response to the kurtosis values or frequency-domain data, 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.