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Minwen
The alkaline hydrogen generators utilizes water electrolysis to produce pure hydrogen and pure oxygen. The hydrogen purity is ensured by controlling the liquid level in the hydrogen/ oxygen tank. The capacity for hydrogen production ranges from 1Nm3/h to 1000Nm3/h, with a purity of 99.999%.
In alkaline water electrolysis hydrogen gas generator, potassium hydroxide (KOH) is commonly used to avoid corrosion issues caused by acid electrolytes. KOH is preferred over sodium hydroxide (NaOH) due to its higher conductivity.
Alkaline water electrolysis hydrogen generator is the oldest, most advanced, and cost-effective technology for water electrolysis. Although it consumes slightly more power compared to proton exchange membrane (PEM) electrolysis and electrolysis of water vapor, it excels in terms of durability, reliability, and safety.
The principle of alkaline water electrolysis hydrogen generator is straightforward. When a direct current is applied to water, oxygen and hydrogen are separated, as indicated in the equations:
Cathode: 2H2O + 2e− → H2 + 2OH-
Anode: 2OH− → 1/2O2 + H2O + 2e−
Total: 2H2O → O2 + 2H2
Structural characteristics of the hydrogen generators:
1. Electrolytic tank: utilizing innovative design, with reduced voltage within the electrodes, increased current density, and decreased energy consumption per unit of hydrogen production.
2. Gas/ liquid separator: streamlining the previous product structure, resulting in a more compact space and improved gas/liquid separation efficiency.
3. Explosion-proof requirements: all components of the hydrogen plants are designed to be explosion-proof. Clients have the option to choose specific brand parts if desired.
4. Cabinets: available in either an integrated cabinet or a split-type design, and even a containerized option for client convenience.
5. Pipes: all pipes are constructed from SS304 stainless steel and connected using live joints, eliminating the drawbacks of traditional flanges that are cumbersome and bulky. This reduces maintenance costs for users and optimizes equipment space, resulting in a smaller footprint.
