Take you to appreciate the technical characteristics of water electrolysis hydrogen production equipment

Release time:

Nov 18,2021

The use of alkaline electrolyzers in water electrolysis hydrogen production equipment has various advantages, including simple structure, convenient operation, relatively cheap price, especially suitable for some large-scale hydrogen production sites, but its shortcomings are also obvious, including low efficiency, which makes users headache, in order to solve the shortcomings of alkaline electrolyzers in water electrolysis hydrogen production equipment.

The use of alkaline electrolyzers in water electrolysis hydrogen production equipment has various advantages, including simple structure, convenient operation, relatively cheap price, especially suitable for some large-scale hydrogen production sites, but its shortcomings are also obvious, including low efficiency, which makes users headache, in order to solve the shortcomings of alkaline electrolyzers in water electrolysis hydrogen production equipment.

 

The PEM electrolyzer of the water electrolysis hydrogen production equipment is structurally the same as all electrolyzers, with two electrodes, but with more polymer films, the proton exchange membrane is usually integrated with the electrode catalyst. This structure is based on porous platinum material as the catalyst structure of the electrode is closely attached to the surface of the exchange membrane.

The membrane of PEM electrolyzer is composed of nation, which contains a substance called sO amidships. After water is decomposed into hydrogen and oxygen, s0 will rapidly decompose into sO3 and H,H and water molecules combine to form HO, which passes through the membrane to reach the cathode under the action of electric field and generates hydrogen at the cathode.

 

The PEM electrolyzer of the water electrolysis hydrogen production equipment does not need electrolyte, only pure water, which is safer and more reliable than the alkaline electrolyzer. The use of proton exchange membranes as electrolytes has chemical stability and high proton conductivity. Good gas separation and other advantages. Due to the higher proton conductivity, the PEM cell can be operated at a higher current, thereby increasing the electrolysis efficiency. And because the proton exchange membrane is thinner, the ohmic loss is reduced. It also improves the efficiency of the system.

Key words:

kylin-tech

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