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US 11,802,047 B2Granted
Pure chlorine dioxide generation system with reduced acid usage
AssigneeEcolab USA Inc.
InventorsKun Xiong, Nicholas R. Denny, Shawn Dalke
Life of this patent
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Abstract
A method of producing chlorine dioxide is disclosed. The method may include feeding a reaction mixture into a separator. The reaction mixture may follow a helical path through the separator and produce gaseous chlorine dioxide within the separator. Gaseous chlorine dioxide may be withdrawn from the separator and used to disinfect process water.
Claims15
A method of treating process water, comprising:
- feeding a first solution comprising an acid through a first feed line into a mixing device;
- feeding a second solution comprising chlorite or chlorate through a second feed line into the mixing device;
- mixing the first solution and the second solution in the mixing device to form a reaction mixture, wherein the mixing device is in fluid communication with a separator;
- directing the reaction mixture in a helical path comprising a plurality of plates with perforations through the separator;
- producing chlorine dioxide in the separator;
- withdrawing the chlorine dioxide from the separator;
- and
- injecting the chlorine dioxide into the process water.
5 more elements
Dependencies are inferred from the claim text.