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Reaction device for producing hydrogen and oxygen by electrolyzing water

A reaction device and water electrolysis technology, applied in the electrolysis process, electrolysis components, electrodes, etc., can solve the problems of high price of proton exchange membrane electrolysis water equipment, restrictions on large-scale promotion and application of proton exchange membrane electrolysis water hydrogen production technology, and achieve Improve energy conversion efficiency, wide operating power range, and compact structure

Pending Publication Date: 2022-01-11
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the price of PEM water electrolysis equipment is very expensive, which largely limits the large-scale application of PEM water electrolysis hydrogen production technology.

Method used

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  • Reaction device for producing hydrogen and oxygen by electrolyzing water
  • Reaction device for producing hydrogen and oxygen by electrolyzing water
  • Reaction device for producing hydrogen and oxygen by electrolyzing water

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Two pieces of nickel foam are selected as the self-supporting transition metal cathode material and the self-supporting transition metal anode material respectively, and thus assembled into a cathode end plate, cathode plate, nickel foam, asbestos, nickel foam, anode plate and anode end plate Electrolyzer without current collector and self-supporting electrode without proton exchange membrane and other components, the schematic diagram of component disassembly is shown in figure 2 shown. A reaction device for hydrogen production and oxygen production by electrolysis of water according to the present invention comprises the above-mentioned electrolytic cell without a current collector and without a proton exchange membrane self-supporting electrode, and two sets of gas-liquid separators (used to separate hydrogen and lye and oxygen and lye), two sets of drying tubes (for drying hydrogen and oxygen respectively), lye tank, hydrogen storage tank, oxygen storage tank and s...

Embodiment 2

[0028] Two pieces of iron foam are selected as self-supporting transition metal cathode material and self-supporting transition metal anode material respectively, thus assembled into a cathode end plate, cathode plate, foam iron, asbestos, foam iron, anode plate and anode end plate Electrolyzer without current collector and self-supporting electrode without proton exchange membrane and other components, the schematic diagram of component disassembly is shown in figure 2 shown. A reaction device for hydrogen production and oxygen production by electrolysis of water according to the present invention comprises the above-mentioned electrolytic cell without a current collector and without a proton exchange membrane self-supporting electrode, and two sets of gas-liquid separators (used to separate hydrogen and lye and oxygen and lye), two sets of drying tubes (for drying hydrogen and oxygen respectively), lye tank, hydrogen storage tank, oxygen storage tank and silicone tube.

[...

Embodiment 3

[0031] Two pieces of foamed iron-nickel are selected as the self-supporting transition metal cathode material and the self-supporting transition metal anode material respectively, and thus assembled into a cathode end plate, cathode plate, foamed iron-nickel, asbestos, foamed iron-nickel, anode plate and An electrolyzer with no current collector and no proton exchange membrane self-supporting electrode with components such as anode end plate, the schematic diagram of component disassembly is as follows figure 2 shown. A reaction device for hydrogen production and oxygen production by electrolysis of water according to the present invention comprises the above-mentioned electrolytic cell without a current collector and without a proton exchange membrane self-supporting electrode, and two sets of gas-liquid separators (used to separate hydrogen and lye and oxygen and lye), two sets of drying tubes (for drying hydrogen and oxygen respectively), lye tank, hydrogen storage tank, o...

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Abstract

The invention provides a reaction device for producing hydrogen and oxygen by electrolyzing water. The reaction device comprises a current collector-free proton exchange membrane-free self-supporting electrode electrolytic bath,two sets of gas-liquid separators, two sets of drying pipes, an alkali liquor box, a hydrogen storage tank, an oxygen storage tank and a silicone tube; the current collector-free proton exchange membrane-free self-supporting electrode electrolytic bath comprises a cathode end plate, a cathode plate, a self-supporting transition metal cathode material, an asbestos diaphragm, a self-supporting transition metal anode material, an anode plate, an anode end plate and the like. The reaction device provided by the invention does not need precious metals and proton exchange membranes, so that the device cost is greatly reduced. In addition, due to the dual effects of the self-supporting electrode material serving as a reaction catalyst and a current collector, the energy conversion efficiency of the reaction device is further improved, and the hydrogen production amount per minute can exceed 320 mL and the oxygen production amount per minute can exceed 160 mL. Therefore, under the background of carbon neutralization, the reaction device for producing hydrogen and oxygen by electrolyzing water, provided by the invention, has a very bright commercial application prospect.

Description

technical field [0001] The invention relates to the technical field of chemical equipment, in particular to a reaction device for electrolyzing water to produce hydrogen and oxygen. Background technique [0002] Human society is facing a very serious energy crisis: the demand for fossil fuels such as coal, oil, and natural gas is increasing day by day, while the global reserves of these fossil fuels are decreasing day by day, so it is particularly important to develop new energy sources. Hydrogen energy (H 2 ), as a renewable new energy, has the advantages of cleanness, renewability, high combustion value, easy transportation and abundant raw materials, and is regarded as the most promising new energy to replace fossil fuels in the future. However, hydrogen does not exist in nature, so there are various hydrogen production processes such as natural gas hydrogen production, methanol cracking hydrogen production, coke oven gas hydrogen production, and electrolytic water hydro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B1/04C25B9/00C25B11/031C25B11/04
CPCC25B1/04C25B9/00C25B11/031C25B11/04Y02E60/36
Inventor 周莹吴梦南唐春张瑞阳周乐毅段超李庭松
Owner SOUTHWEST PETROLEUM UNIV
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