Chlorine dioxide generator for the efficient generation of chlorine dioxide in dilute solutions

Abstract

Disclosed is an apparatus and method for the safe and efficient generation of chlorine dioxide. Chlorine dioxide is produced safely and efficiently by diluting a source of chlorite in water to produce less than or equal to 5000 ppm measured as ClO2 while achieving at least 80 wt%, more preferably 90 wt %, and most preferred at least 95 wt % conversion of chlorite anion to chlorine dioxide.

Description

RELATED APPLICATIONS[0001]This Utility Application is a continuation of Provisional Application No. 61 / 743,436 filed on Sep. 04, 2012.BRIEF DESCRIPTION[0002]Chlorine dioxide generators come in a variety of configurations and use a range of generating techniques. Generators that use chlorite, hypochlorite, and acid often comprise an eductor to form a vacuum to extract a highly concentrated stream of chlorine dioxide gas and dilute it with water to produce a chlorine dioxide solution.[0003]These techniques have the potential to cause explosion and / or significant harm to personnel due to contact with highly concentrated chlorine dioxide in the event of a malfunction. The invention provides a system and method for producing a dilute chlorine dioxide solution with a concentration ranging from 250 ppm to 5000 ppm as chlorine dioxide without the need for combining concentrated streams of chemical reagents and producing potentially dangerous concentrations of chlorine dioxide gas.[0004]The ...

AI Technical Summary

Benefits of technology

The patent text describes a system for efficiently producing chlorine dioxide by reacting water, chlorite, and acidified chlorine in a reaction chamber. The system can also control the chemical feed-rate to ensure consistent efficiency and adjust the production rate of chlorine dioxide through feed-back and feed-forward control. The technical effects of this system include improved efficiency, consistent production, and proportional control over chlorine dioxide production rate.

Problems solved by technology

These techniques have the potential to cause explosion and / or significant harm to personnel due to contact with highly concentrated chlorine dioxide in the event of a malfunction.

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