Electrochemical method for the removal of nitrogen oxides and su

Details Electrochemical method for the removal of nitrogen oxides and su Electrochemical method for the removal of nitrogen oxides and su

1990-06-11

1992-03-17

Niebling, John

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204103, 204104, 204130, 204DIG4, 423235, 423242, C25B 122, C01B 1756, C01B 2120

Patent

active

050960547

ABSTRACT:
A method for removing NOX from gases is provided. A gas comprising NOX and/or SO.sub.2 is flowed behind a gas permeable anode. Air is simultaneously flowed behind the gas permeable cathode, and the cathode is separated from the anode by a liquid electrolyte. An external potential is applied between the anode and the cathode to bring about the oxidation of NOX and/or SO.sub.2 at the anode and the reduction of dioxygen at the cathode to yield nitric oxide and/or sulfuric acid, and hydrogen peroxide.

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