Biogas is increasingly important as source of sustainable energy. When biogas is produced through any form of anaerobic digestion, it will be mostly polluted with hydrogen sulphide. The concentrations can vary from 200 ppm up to several volume per centage points.

Removal of H2S is often required for reasons of health, safety, environment and corrosion of equipment such as gas engines, boilers and piping. Desulphurization is also is necessary when biogas is upgraded to natural gas quality and injected in the grid.

Of the many methods available, AlfagyCleanGas is the most elegant. This technology is very reliable (> 98% uptime) and shows deep removal of hydrogen sulphide. Importantly, the caloric value of the biogas is retained as it does not dilute biogas with air or oxygen.

AlfagyCleanGas technology is used to desulphurise

  • Biogas
  • Vent air
  • Landfill gas
  • H2S containing gases from the oil and gas industry