Patent ID: 8647598
Filing Date: 2014-02-11
Classification: B01J,C01B

Abstract:
1. A method for producing a chlorine dioxide solution in a non-reactive carrier fluid, said method comprising: (1) delivering a first chemical precursor to an internal fluid flow tube housed in a chemical reactor having: (a) an upper mixing and/or reaction zone, (b) a lower distribution and reaction zone and (c) an exit port from the lower distribution and reaction zone into a fluid stream to be treated; (2) delivering a second chemical precursor to a void space in the upper mixing and/or reaction zone, wherein said void space is formed between the inside surface of the chemical reactor and the outside surface of the internal fluid flow tube; (3) delivering a third chemical precursor to said void space in the upper mixing and/or reaction zone; (4) chemically reacting the second chemical precursor and the third chemical precursor with each other in the upper reaction zone to form a first chemical reaction product; (5) forcing the first chemical reaction product into the lower distribution and reaction zone; (6) chemically reacting the first chemical reaction product and the first chemical precursor in the lower distribution and reaction zone to produce chlorine dioxide gas; (7) invading said lower distribution and reaction zone with a portion of the fluid from the fluid stream to be treated; (8) dissolving the chlorine dioxide gas produced in the lower distribution and reaction zone into the fluid that has invaded said lower distribution and reaction zone while in said lower distribution and reaction zone; and (9) forcing the fluid that has invaded the lower distribution and reaction zone back into the fluid stream to be treated.