Hitherto technologies for removing oxygen and poisonous trace elements from biogas are complex, costly and cause pollution. Now, efficient and eco-friendly technology promises to clean up landfill gases, with major implications for electricity and heat generation or transport fuel.
Landfill biogas is a renewable energy source that typically refers to gas produced by the biological breakdown of organic matter in the absence of oxygen. The problem with landfill biogas is the trace amount of oxygen and hydrogen sulphide. Oxygen concentration must be reduced by safety issue (corrosion and risk of explosion) and regulations for injection in natural gas grid. Hydrogen sulphide causes corrosion issues in piping and equipment.
Further details: Removing contaminants from landfill gas