Monitoring and dosage control of tagged polymers in cooling water systems
AssigneeNalco Chemical Company
InventorJohn E. Hoots
Life of this patent
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Abstract
Method of determining treating agent concentration added to a water recirculating system to enhance efficiency by inhibiting scaling or corrosion or settling of particulates; the treating agent bears an amine-containing fluorescent moiety tag covalently bonded thereto, allowing sample analysis for emissivity as a measure of concentration equatable to the performance of treating agent in the system; by simultaneously employing an inert fluorescent tracer equated to the original (ppm) dosage of treating agent, consumption of the treating agent may be determined by emissivity differences equated to the original dosage.
Claims11
Method of determining the concentration of a water soluble carbonyl polymeric treating agent added to a circulating body of water confined in a water recirculating system, said treating agent being one which enhances the efficiency of equipment in the system by inhibiting scaling or corrosion or settling of particulates, comprising the steps of:
- dosing the body of water with a predetermined concentration of the treating agent bearing an amine-containing fluorescent moiety tag covalently bonded thereto;
- removing a sample of the body of water containing the tagged treating agent;
- analyzing the emissivity as a measure of the concentration of the treating agent in the sample, and
- adjusting the concentration of the treating agent accordingly as the analyzed sample exhibits a concentration departure from said predetermined concentration.
Method of determining the consumption of a water soluble carbonyl polymeric treating agent added to a circulating body of water confined in a water recirculating system, said treating agent being one which enhances the efficiency of equipment in the system by inhibiting scaling or corrosion or settling of particulates, comprising the steps of:
- adding to the body of water both a predetermined concentration of said treating agent bearing an amine-containing fluorescent moiety tag covalently bonded thereto and, separately, an inert fluorescent tracer, inactive in the system, in a concentration equivalent to the concentration of the treating agent;
- removing a sample of the body of water containing the fluorescent tracer and the tagged treating agent addition;
- separately analyzing the emissivity of the treating agent and tracer in said body of water as a measure of their respective concentrations in the sample;
- determining any difference between the analyzed concentration of the treating agent and that of the tracer as a departure from said equivalent concentration, and adjusting the concentration of said treating agent in said body of water based on said departure from said equivalent concentration.
Dependencies are inferred from the claim text.