Inventors:
Robert O. Hagerty - La Porte TX, US
Ian D. Burdett - Charleston WV, US
Marc L. DeChellis - Houston TX, US
F. David Hussein - Cross lanes WV, US
Eric J. Markel - Kingwood TX, US
Michael E. Muhle - Kingwood TX, US
Richard B. Pannell - Kingwood TX, US
Daniel P. Zilker - Charleston WV, US
Assignee:
Univation Technologies, LLC - Houston TX
International Classification:
G05B 21/00
US Classification:
700269, 700266, 700268, 702 22, 702 31, 702 32, 526 61, 526 59, 526 60, 422131, 422139
Abstract:
Generally, a method of monitoring a polymerization reaction in a fluid bed reactor to generate, in on-line fashion, data indicative of the imminent occurrence of a discontinuity event (for example, sheeting) and optionally also control the reaction to prevent the occurrence of the discontinuity event is provided. Typical embodiments include the steps of generating in on-line fashion at least one of bed static data indicative of static charge in the fluidized bed and carryover static data indicative of carryover static; and generating at least one of temperature data (in on-line fashion using at least one monitored reaction parameter) indicative of a first temperature and acoustic emission data indicative of resin stickiness in the reactor, where the first temperature is indicative of at least one of degree of resin stickiness in the reactor and a characteristic of melting behavior of polymer resin in the reactor in the presence of at least one diluent.