Method of producing a concentrated hydrogen peroxide solution

Abstract

The present invention refers to a production method for a concentrated hydrogen peroxide solution suitable for providing hydrogen peroxide for industrial applications on site. Furthermore, the present invention refers to a hydrogen peroxide solution production device being adapted to realize the inventive method. Additionally, the present invention refers to a fiber-based material processing facility utilizing the inventive device.

1 . A method of producing hydrogen peroxide solution, the method comprising:
 producing a hydrogen peroxide solution in a electrochemical cell; and   concentrating a hydrogen peroxide solution in an electrotechnical cell;   wherein in the electrotechnical cell a fluid stream of the hydrogen peroxide solution is directed through an electrical or magnetic field,   wherein the fluid stream is split into a hydrogen peroxide enriched part of the fluid stream and an hydrogen peroxide depleted part of the fluid stream.   
     
     
         2 . The method according to  claim 1 , wherein the fluid stream provides a flow speed of at least 0.7 m/s. 
     
     
         3 . The method according to  claim 1 , wherein hydrogen peroxide concentration of the hydrogen per-oxide enriched part of the fluid stream is at least 7 wt.-%, based on the total weight of the hydrogen peroxide solution. 
     
     
         4 . The method according to  claim 1 , wherein hydrogen peroxide concentration of the hydrogen peroxide enriched part of the fluid stream is at most 25% wt.-%, based on the total weight of the hydrogen peroxide solution. 
     
     
         5 . The method according to  claim 1 , wherein the hydrogen peroxide enriched part of the fluid stream and/or the hydrogen peroxide depleted part of the fluid stream is directed through the same or a further electrotechnical cell. 
     
     
         6 . The method according to  claim 1 ,
 wherein the method further comprises utilizing a first electrotechnical cell and a second electrotechnical cell;   
       wherein the method further comprises the step of directing the fluid stream through the first electrotechnical cell and second electrotechnical cell;
 wherein the fluid stream is directed as loop through the first electrotechnical cell and the second electrotechnical cell; 
 wherein the hydrogen peroxide enriched part of the fluid stream is directed through the first electrotechnical cell and the hydrogen peroxide depleted part of the fluid stream is directed through the second electrotechnical cell; 
 wherein the first electrotechnical cell provides a first hydrogen peroxide enriched part and a first hydrogen peroxide depleted part; 
 wherein the second electrotechnical cell provides a second hydrogen peroxide enriched part and a second hydrogen peroxide depleted part; and 
 wherein the method further comprises the step of creating a loop of enriching the concentration of the hydrogen peroxide utilizing the first electrotechnical cell and the second electrotechnical cell until a predefined hydrogen peroxide concentration is achieved. 
 
     
     
         7 . The method according to  claim 1 , wherein the step of producing the hydrogen peroxide is realized by reacting hydrogen and oxygen in the electrochemical cell. 
     
     
         8 . The method according to  claim 1 , wherein the step of producing the hydrogen peroxide is realized by oxidizing water in the electrochemical cell. 
     
     
         9 . The method according to  claim 1 , wherein the step of producing the hydrogen peroxide is realized by reacting hydrogen and oxygen in a first electrochemical cell or wherein the step of producing the hydrogen peroxide is realized by oxidizing water in a second electrochemical cell. 
     
     
         10 . The method according to  claim 1 , wherein the method further contains the step of generating hydrogen and oxygen in an electrolysis cell,
 wherein the hydrogen and the oxygen are stored in local gas containers,   wherein the hydrogen and the oxygen are used in the electrochemical cell in the step of producing manufacturing of hydrogen peroxide.   
     
     
         11 . The method according to  claim 1 , wherein the concentration of the hydrogen peroxide of the enriched part to fluid stream and/or the concentration of the hydrogen peroxide of the depleted part of the fluid stream are determined using UV light. 
     
     
         12 . The method according to  claim 1 , wherein the fluid stream is run repeatedly through at least three electrotechnical cells simultaneously, wherein different concentrations of hydrogen peroxide solutions are fed into the electrotechnical cells, and
 wherein the hydrogen peroxide enriched parts of the fluid stream and the hydrogen peroxide depleted part of the fluid stream from the electrotechnical cells are fed into each other to establish a cascade continuously increasing the hydrogen peroxide concentration of a part of the fluid stream.   
     
     
         13 . A hydrogen peroxide solution production device, wherein the hydrogen peroxide solution production device is adapted to execute the steps of the method according to  claim 1 . 
     
     
         14 . A fiber-based material processing facility containing at least one hydrogen peroxide production device according to  claim 13 . 
     
     
         15 . A computer program product, tangibly embodied in a machine-readable storage medium, including instructions operable to cause a computing entity to execute a method according to  claim 1 .