Patent ID: 8377384

Claim:
An electrochemical cell arrangement for producing hydrogen peroxide, the electrochemical cell arrangement comprising: an electrochemical cell comprising an anode compartment and a cathode compartment, the anode compartment having an anode configured to hydrolyze water to produce hydrogen ions and oxygen in an anolyte solution within the anode compartment, and the cathode compartment having a cathode configured to diffuse oxygen into a catholyte solution within the cathode compartment; a cation membrane within the electrochemical cell, the cation membrane configured to separate the anode compartment from the cathode compartment, the cation membrane further configured to allow hydrogen and alkali cations to pass through the cation membrane from the anode compartment to the cathode compartment; a gas plenum within the electrochemical cell, the gas plenum configured to provide oxygen from an external source to the cathode; a gas/liquid separator configured to receive the anolyte solution from the anode compartment and to remove the oxygen from the anolyte solution; a neutralizing chamber configured to receive the anolyte solution from the gas/liquid separator, to receive the catholyte solution from the cathode compartment, to combine the anolyte solution and the catholyte solution and to output a neutral solution of hydrogen peroxide, salt and water; and a recovery unit configured to receive the neutral solution of hydrogen peroxide, salt and water output by the neutralizing chamber, to separate out the salt and the water from the neutral solution, and to output the hydrogen peroxide.