A device and method for electrochemically generating hydrogen peroxide

Abstract

The invention discloses a device and method for electrochemically generating hydrogen peroxide. It includes a reaction tank and a power supply. The inner wall of the reaction tank is provided with a cathode electrode, the reaction tank is provided with a cover plate, the cover plate is provided with an anode electrode, the cathode electrode and the anode electrode are provided with a catalyst, and the reaction tank is provided with a Electrolyte, the cover plate is provided with an air inlet pipe and an air outlet pipe, one end of the air inlet pipe is installed on the cover plate, the other end of the air inlet pipe is placed in the reaction tank and is in contact with the electrolyte, one end of the air outlet pipe is installed on the cover plate, and the outlet pipe is installed on the cover plate. The other end of the trachea is placed outside the cover plate, an input port and an output port are provided on the reaction tank, and both the cathode electrode and the anode electrode are electrically connected to the power supply. The beneficial effects of the present invention are: the structure is simple in design, does not require a diaphragm, low in cost, ensures the uniformity of the electric field in the horizontal direction, increases the stability and expandability of the equipment, and is more convenient to integrate into various small household sterilization equipment, etc. , beautiful and practical.

Description

technical field [0001] The invention relates to the technical field of chemical equipment, in particular to a device and method for electrochemically generating hydrogen peroxide. Background technique [0002] Hydrogen peroxide solution is an important chemical in various industrial applications including chemical synthesis, pulp and paper, textile bleaching, cleaning and etching, environmental protection, health consumer applications, etc. As an efficient, harmless and residue-free oxidant, it is widely used in the sterilization and disinfection of water bodies and the treatment of organic pollutants. Hydrogen peroxide for existing industrial applications is mainly produced by electrolysis or anthraquinone method. [0003] The electrolysis method mainly produces ammonium persulfate by electrolyzing ammonium sulfate solution, which flows out from the anode chamber with a content of about 180-240g / L, and is used for hydrolysis through the storage tank. Under reduced pressur...

AI Technical Summary

Problems solved by technology

These two large-scale production methods both consume a large amount of electric energy, the steps are cumbersome, and they have high requirements for the site, so they can only be produced in a large-scale centralized manner.

On the other hand, the hydrogen peroxide solution is unstable and will decompose into water and oxygen at room temperature, which poses safety risks in transportation and storage, and increases the corresponding cost

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