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

ProMax Green Hydrogen Graph ProMax PEM Electrolysis Facility