On-line measurement and control of the properties of polu00ecmero by Raman spectroscopy

摘要

"On-line measurement and control of polu00ecmero properties by Raman spectroscopy.Methods are provided for the determination and control of polymer properties on-line in a polymerization reactor system, such as a fluidized bed reactor.The methods include obtaining a regression model for the determination of a property of the polymer.Regression model that acquires a Raman spectrum of a sample of polyolefin comprising polyolefin.The calculation of a new count of main component from at least a portion of Raman spectrum and the loads of main component.And the calculation of the property of polymer by applying the new count of main component to the regression model.The property can be controlled by adjustment of the at least one parameter of polymerization based on the property of polymer calculated.