DOUBLE DERIVATIVE NIR PROCESS CONTROL

The present invention provides a method to calibrate a NIR analyzer to measure monomer concentrations at one or more locations in a reactor system. The regression coefficients for the NIR analyzer are transferable between reactors using the same process (solution polymerization to solution polymeriz...

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Bibliographic Details
Main Author LACOMBE, YVES
Format Patent
LanguageEnglish
French
Published 03.08.2012
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
MEASURING
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PHYSICS
TESTING
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:The present invention provides a method to calibrate a NIR analyzer to measure monomer concentrations at one or more locations in a reactor system. The regression coefficients for the NIR analyzer are transferable between reactors using the same process (solution polymerization to solution polymerization) and may be used to control the reaction, or calibrate flow meters on line.
Bibliography:Application Number: CA20112759535