H2 Mass flow control

Hydrogen mass flow control is essential for many industries. Typical mass flow controllers base their measurement on a minimum gas inlet pressure, whereas Proton Technologies MFC can operate with a fluctuating gas inlet pressure, whilst retaining dead on accurate gas flow. This is due to the half reaction of hydrogen, wherein each electron represents a proton (half of a hydrogen molecule). By galvanostaticly controlling the cell a constant hydrogen flow is ensured, regardless of the inlet pressure, temperature and even outlet pressure. Maintaining a constant flow to processes that might not be as constant as preferred.

Advantages over “standard” mass flow controllers:

  • Gas inlet pressure can be lower than outlet pressure
  • Electrical signal determines flow, therefore the flow accuracy is high
  • Any scale possible
  • Additional purification step due to selectivity