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HOD Sodium-Borohydride fuelled Hydrogen generator

 

El.Ma. has built an automatic Hydrogen generator from hydrolysis of Sodium-Borohydride with process control.
This Hydrogen generator, named HOD (Hydrogen-On-Demand™), produces pure Hydrogen through chemical reaction from Sodium-Borohydride NaBH4, using patented catalysts.

4 atoms are given by Sodium-Borohydride and 4 atoms are given by water.

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Hydrogen is produced only in desired quantity, in order to mantain constant output pressure to compatible values with traditional fuel cells systems.

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Performances of this system are the following:

  • Power: 5 kW

  • H2 flow: 3.8 m3/h

  • Max pressure: 90 psi (6 bar)

  • Gas: pure Hydrogen (CO < 0.5 ppm; CO2 < 10 ppm)

  • Autonomy (max power): 3h

The Hydrogen production cycle is managed by a control process entirely developed by El.Ma.

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Following images show HOD connected with two different systems based on fuel cells: the first is produced by ReliON (1 kW) and uses PEM technology, the second is produced by Astris Energi (2.4 kW) and uses AFC technology.
Both generators are connected to a resistive test load.

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