Green Hydrogen

With ProMax 6.0, BR&E introduces new process blocks for simulating water electrolysis to produce Green Hydrogen:

• Polymer Electrolyte Membrane (PEM)
• Alkaline Water Electrolysis (AWE)
• Solid Oxide Electrolysis (SOE)

Many alternate combinations of properties available for solving the electrolyzer including:

• Total Power Input
• Hydrogen Production Target
• Fraction Inlet H2O Conversion
• Current Density
• Area per Cell
• Cells per Stack
• Stacks per Facility

Electrolyzer performance is characterized by:

• Reversible Cell Voltage from ProMax’ thermodynamic properties
• Overpotential Voltage by
  • User-specified constant value
  • Voltage vs Current Density curve entry

Product Impurities are predicted or specified:

• Hydrogen Crossover
• • Ulleberg correlation when using AWE
  • H2 and O2 Conversion to Water with SOE
• Oxygen Crossover
  • H2 and O2 Conversion to Water with SOE
• Water Crossover
  • Electro-Osmotic Drag Coefficient when using PEM

Reported properties on Cell, Stack, and Facility basis include:

• Reversible, Overpotential, and Total Voltage
• Current
• Power
• Hydrogen Yield
• Efficiencies

Separate Pressure Changes for Anode and Cathode Sides