Greenmac upgrades biogas to natural gas quality. The upgraded biogas, also known as green gas or biomethane, is a sustainable form of renewable energy and can be supplied to the natural-gas grid or used as transport fuel. Our company is specialised in the design, turnkey supply and maintenance of biogas upgrading systems for 30 years.


We have broad international experience and you’ll find in us a cooperative partner in projects. We can offer you:

  • Membrane separation
  • LP Cooab® absorption
  • Bio up small scale biogas upgrading
  • CO2 liquifaction
  • Capacities up from 50 to 5,000 Nm3/h
  • 24/7 Service

Why work with us?

  • Broad international experience
  • 30 years of exploitation in The Netherlands
  • Focused service and maintenance
  • Design and supply turnkey systems
    • High efficiency, low emissions
    • Re-use of carbon dioxide possible
    • Used as vehicle fuel or injected into the gas grid

The technologies are already being used in systems with capacities of between 50 and 5,000 Nm3/h

The RootselaarGroup