Online monitoring of polymerization inhibitors for control of undesirable polymerization
AssigneeEcolab USA Inc.
InventorsRamon Colorado, JR., Vincent Lewis, Robert A. Geiger, Jessica Hancock, Andrew R. Neilson
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Abstract
Disclosed herein are systems and methods for monitoring and controlling a nitroxide-based polymerization inhibitor in vinyl-based monomers. A dosage of the nitroxide-based polymerization inhibitor is provided in the vinyl-based monomers. A residual concentration of the nitroxide-based polymerization inhibitor is measured substantially in real time, and an optimized dosage of the nitroxide-based polymerization inhibitor is provided in response to the measured residual concentration.
Claims20
A method of monitoring and controlling a nitroxide-based polymerization inhibitor in vinyl-based monomers, the method comprising:
- providing a dosage of the nitroxide-based polymerization inhibitor in the vinyl-based monomers;
- measuring a residual concentration of the nitroxide-based polymerization inhibitor substantially in real time;
- and
- providing an optimized dosage of the nitroxide-based polymerization inhibitor in response to the measured residual concentration.
A system for monitoring and controlling undesirable polymerization in vinyl-based monomers, comprising:
- a fast flow sampling loop;
- and
- a control module connected to the fast flow sampling loop, the control module being capable of controlling sample conditioning and measuring a residual concentration of a nitroxide-based polymerization inhibitor in the vinyl-based monomers substantially in real time.
Dependencies are inferred from the claim text.