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Electrochemical reactor for obtaining ozone in the gas phase
P202530089
Electrochemical reactor for obtaining a gaseous ozone stream with a PEM-type electrochemical cell and a liquid-gas separation system equipped with concentric curved baffles with central openings that form a channel above the electrochemical cell and a gas stream outlet at the top of the reactor. The reactor, configured with both stages—electrolysis and separation—is optimized to minimize ozone losses to the environment and ensure its efficient collection or channeling to utilization systems.
The present invention combines two clearly differentiated parts in a single electrochemical reactor printed using 3D technology: (1) the in-situ production of ozone gas by electrolysis of water, which is recirculated to the reactor, and (2) the desorption of the ozone gas produced into a gas stream for subsequent use as an oxidizing agent. The electrochemical reactor is provided with an anode, preferably 100 mm x 100 mm, made of boron-doped diamond (BDD) in contact with a cathode of an electrochemically inert material, separated by a cation-exchange membrane that acts as a solid electrolyte. Both the electrodes and the separating membrane are immersed in water, which is continuously recirculated to the electrochemical reactor. The separation of the generated gaseous oxidants, primarily ozone gas, in a gas stream is achieved with the aid of barrel-vaulted vanes that overlap in up to three layers.