US2013341200A1PendingUtilityA1

Series cell electrochemical production of modified anolyte solution

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Individually held — no corporate assignee on recordPriority: Jun 21, 2012Filed: Aug 7, 2012Published: Dec 26, 2013
Est. expiryJun 21, 2032(~5.9 yrs left)· nominal 20-yr term from priority
Inventors:Scott D. MccormickChristopher WilkerJacob AbitboulChen BokerDavid Sheffer
C25B 15/033C25B 9/70C02F 2001/46185C02F 2201/46115C25B 1/26C25B 15/02
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Claims

Abstract

A membrane-based electrochemical cell produces a first anolyte solution and a membrane-less electrochemical cell processes the first anolyte solution to produce a modified anolyte solution.

Claims

exact text as granted — not AI-modified
Having described the invention, what is claimed is: 
     
         1 . A system for producing modified anolyte solution comprising:
 a first electrochemical cell having a first anode, a first cathode, and an ion exchange membrane therebetween, and having an anolyte space between the membrane and the first anode and a catholyte space between the membrane and the first cathode, whereby a first anolyte solution is produced from a liquid in the anolyte space with the first anode and first cathode being powered; and   a second electrochemical cell having a second anode and a second cathode and having a fluid space between the second anode and the second cathode uninterrupted by a membrane, the anolyte space of the first electrochemical cell being coupled to the fluid space of the second electrochemical cell, whereby a modified anolyte solution is produced from at least the first anolyte solution in the fluid space with the second anode and second cathode being powered.   
     
     
         2 . The system of  claim 1 , the first electrochemical cell including an output coupled to the anolyte space whereby to output the first anolyte solution, the second electrochemical cell including an input coupled to the first electrochemical cell whereby to couple the first anolyte solution into the fluid space. 
     
     
         3 . The system of  claim 1  further comprising an anolyte tank in fluid communication with the fluid space of the second electrochemical cell whereby to receive the modified anolyte solution. 
     
     
         4 . The system of  claim 1 , whereby a catholyte solution is produced from liquid in the catholyte space with the first anode and first cathode being powered, the system further comprising a catholyte tank in fluid communication with the catholyte space for receiving the catholyte solution. 
     
     
         5 . The system of  claim 4  further comprising an output coupled to the catholyte space, the output being fluidically coupled to the catholyte tank. 
     
     
         6 . The system of  claim 1 , the membrane being a cation exchange membrane. 
     
     
         7 . The system of  claim 1 , the membrane being an anion exchange membrane. 
     
     
         8 . The system of  claim 1 , the first anode and first cathode being foraminous, and the second anode and second cathode being solid. 
     
     
         9 . The system of  claim 1 , the first electrochemical cell comprising a plurality of first anodes, a plurality of first cathodes, and a plurality of respective ion exchange membranes therebetween to define a plurality of anolyte spaces between the respective membranes and first anodes and a plurality of catholyte spaces between the respective membranes and first cathodes, whereby a first anolyte solution is produced from a liquid in the anolyte spaces with the first anodes and first cathodes being powered. 
     
     
         10 . The system of  claim 9 , the plurality of anolyte spaces and plurality of catholyte spaces being arranged to provide adjacent anolyte spaces and adjacent catholyte spaces. 
     
     
         11 . The system of  claim 10  further comprising spacers between the anolyte spaces of adjacent anolyte spaces and between the catholyte spaces of adjacent catholyte spaces. 
     
     
         12 . The system of  claim 11 , the spacers between the anolyte spaces of adjacent anolyte spaces having inputs and outputs in fluid communication with the anolyte spaces. 
     
     
         13 . The system of  claim 12 , the anodes including apertures therein whereby to couple liquid into the anolyte spaces and first anolyte solution out of the anolyte spaces. 
     
     
         14 . The system of  claim 12 , the spacers between the catholyte spaces of adjacent catholyte spaces having inputs and outputs in fluid communication with the catholyte spaces. 
     
     
         15 . The system of  claim 14 , the cathodes including apertures therein whereby to couple liquid into and out of the catholyte spaces. 
     
     
         16 . The system of  claim 1 , the first cathode and first anode being generally planar. 
     
     
         17 . The system of  claim 1 , the second cathode and second anode being generally planar. 
     
     
         18 . The system of  claim 1 , the membrane being generally planar. 
     
     
         19 . A method of producing modified anolyte solution comprising:
 producing a first anolyte solution in an anolyte space between a first anode and an ion exchange membrane of a first electrochemical cell having the first anode, a first cathode, and the membrane therebetween;   coupling the first anolyte solution to a fluid space between a second anode and a second cathode of a second electrochemical cell having the second anode and the second cathode uninterrupted by a membrane therebetween; and   producing a modified anolyte solution from at least the first anolyte solution in the fluid space.   
     
     
         20 . The method of  claim 19 , producing the first anolyte solution including coupling a brine solution to the anolyte space and powering the first anode and cathode. 
     
     
         21 . The method of  claim 20 , producing the modified anolyte solution including powering the second anode and cathode. 
     
     
         22 . The method of  claim 21  further comprising coupling liquid to a catholyte space between the membrane and the cathode of the first electrochemical cell. 
     
     
         23 . The method of  claim 21  further comprising producing a catholyte solution in the catholyte space. 
     
     
         24 . The method of  claim 19  wherein the first anode and the first cathode are foraminous, and the second anode and the second cathode are solid. 
     
     
         25 . The method of  claim 19  further comprising coupling the modified anolyte to an anolyte tank.

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