Water for Hydrogen Generators
Impact of Water
Hydrogen generators use electrolytic dissociation of water to generate a continuous supply of high purity hydrogen. Water purity is important for their optimal performance.
The following contaminants should be avoided:
- Ions
Ions present in the water may interfere with the electrolysis process, and damage the electrochemical cells. They should be avoided. Ion exchange resins and/or reverse osmosis technologies can remove most of the ions present in tap water, making water suitable for this application.
- Particles
Particles may deposit on lines and membranes, damage the electrochemical cells and interfere with the functioning of the instrument.
- Organics
High loads of organics could potentially create deposits on the surface of the electrodes or form a coating on the membranes, and thus impact the local current. In addition, organic compounds can be used as nutrients by bacteria, and should therefore be kept to a minimum.
- Bacteria
Bacteria levels should be kept to a minimum, to prevent the formation of biofilm inside the instrument. bacteria levels can be minimized by controlling the levels of organics present in the water. Filtration may also be used.
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