Alkaline Hydrogen Generators: 103 to 4,000 Nm³/h

Nel Hydrogen is a world leader in large-scale electrolszers. Its A Series units provide for smooth capacity upsizing from medium to large-scale hydrogen plants based on water electrolysis technology.

Nel Hydrogen’s expertise in large-scale plants is demonstrated through historical plants surpassing 30,000 Nm³/h, as well as the latest installation of new plants with an energy capacity of over 60 MW.

The A Series, which features the most energy-efficient electrolyzers in the world, features a cell stack power consumption down to 3.8 kWh/Nm3 of hydrogen gas generated, up to 2.2 MW per stack.

The A Series electrolyzers can generate up to 3,880 Nm3/hour of hydrogen or just above 8 ton per day. Users can containerize this powerful system, which has one of the world’s smallest footprints for high-capacity electrolyzer plants at 200 barg.

Features

  • Pure hydrogen at process pressure – up to 200 barg (2,900 psig) hydrogen and 99.99 to 99.999% purity
  • Cost-effective hydrogen supply – tracks electric costs
  • Virtually zero stored hydrogen – removes the hazard of flooding the space
  • Large capacity with minimal footprint – only a fraction of space needed compared to storing large volumes of gas or liquid hydrogen
  • Dependable supply of hydrogen – field-proven reliability
  • Modular skid-based design – versatile plant configurations
  • Automated – safe operation without manual involvement
  • Containerization is available – easy installation

Specifications

Source: Nel Hydrogen

Specifications A150 A300 A485 A1000 A3880
Net Production Rate 50 to 150 Nm3/h 150 to 300 Nm3/h 300 to 485 Nm3/h 600 to 970 Nm3/h 2,400 to 3,880 Nm3/h
Production Capacity Dynamic Range 15 to 100% of flow range 15 to 100% of flow range 15 to 100% of flow range 15 to 100% of flow range 3.75 to 100% of flow range
Power Consumption at Stack1 3.8 to 4.4 kWh/Nm3 3.8 to 4.4 kWh/Nm3 3.8 to 4.4 kWh/Nm3 3.8 to 4.4 kWh/Nm3 3.8 to 4.4 kWh/Nm3

Purity – with optional purification

99.99 to 99.999% 99.99 to 99.999% 99.99 to 99.999% 99.99 to 99.999% 99.99 to 99.999%
O2-Content in H2 <2 ppm v <2 ppm v <2 ppm v <2 ppm v <2 ppm v
H2O-Content in H2 <2 ppm v <2 ppm v <2 ppm v <2 ppm v <2 ppm v
Delivery Pressure 1 to 200 barg 1 to 200 barg 1 to 200 barg 1 to 200 barg 1 to 200 barg
Footprint

~150 m2

~200 m2

~225 m2

~225 m2

~770 m2

Ambient Temperature 5 to 35 °C 5 to 35 °C 5 to 35 °C 5 to 35 °C 5 to 35 °C
Electrolyte

25% KOH aqueous solution

25% KOH aqueous solution

25% KOH aqueous solution

25% KOH aqueous solution

25% KOH aqueous solution

Feed Water Consumption 0.9 l/Nm3 0.9 l/Nm3 0.9 l/Nm3 0.9 l/Nm3 0.9 l/Nm3

 

For reference only—specifications are subject to change. Customers can contact Nel Hydrogen for solutions that best fit their needs.

1 Depends on configuration and operating conditions.

Other Equipment by this Supplier