QED Environmental Systems Ltd.

Portable and fixed gas analysers for biogas upgrading - Energy - Bioenergy

Biogas with 60% CH4 can be upgraded using various techniques. Upgraded biogas may be packaged for transport use, injected into a distribution network or piped off site.

Gas source / feedstock

  • AD process

Typical gas mix

  • CH4 is upgraded to 95-98% with impurities removed
  • O2 less than 1%
  • H2S less than 50ppm

Where does it occur?

  • UK
  • France
  • China
  • Netherlands
  • Sweden
  • Norway
  • Far East in general


  • BIOGAS 3000
  • BIOGAS 5000
  • GAM Software

What is it for?

  • Biogas >95% CH4 is used as transport fuel or alternative to natural gas for domestic use

Did you know?

It is often necessary to regulate gas pressure down to 350mb max. for monitoring using a regulator and pressure relief valve. Many countries have very high standards to biogas to be injected into the grid. Permissible levels of O2 vary.