Demineralization of water for hydrogen production

I’mWATER carries out complete projects for demineralization systems focused on hydrogen production.

From the engineering phase to manufacturing, assembly, and equipment supply.

I’mWATER carries out complete projects for demineralization systems focused on hydrogen production, from the engineering phase to manufacturing, assembly, and equipment supply.

Generally, the process starts with good quality water sources (such as tap water or fresh well water), which are treated using an reverse osmosis system and then further refined with ion exchange or electrodesionization to achieve conductivities lower than <0.1 μS/cm (or >10 MOHm·cm), among other parameters.

  • It starts with good quality water such as tap water or fresh well water.
  • It is possible to use water sources of lower quality with additional treatment steps.
  • Typically, the treatment includes reverse osmosis followed by polishing with ion exchange resins or electrodesionization.
  • Water quality is achieved with a conductivity of <0.1 μS/cm (or >10 MOHm·cm in resistivity units, which are more commonly used to refer to demineralized water quality).
  • With electrodesionization polishing, water qualities higher than >17 MOHm·cm (<0.059 μS/cm) can be safely achieved.
  • Conductivity (μS/cm) = 1 / Resistivity (MOHm·cm).

  • Pre-treatments (filters with silex bed, anthracite, Turbidex, activated carbon, ultrafiltration…).
  • Reverse osmosis.
  • Polishing with ion exchange resin filtration or electrodesionization.

Hydrogen is an emerging energy carrier that offers the most promising possibilities for energy storage, especially in transportation applications and electric motors, overcoming the limitations of batteries in terms of cost, vehicle range, charging time, etc.