Project name/location: Biomethane plant Taranto, Italy
Type: Biomethane plant for processing 4,400 m³/h of landfill gas
Commissioning: 2024
Design: ETW biomethane plant based on the principle of pressure swing adsorption + NRU
High requirements for gas upgrading
Landfill gas presents a unique challenge for upgrading. On one hand, it contains very high concentrations of trace contaminants (VOC: volatile organic compounds) and siloxanes. On the other hand, the gas quality is not consistent and fluctuates in composition and volume. The longer a landfill is in operation, the more methane is replaced by oxygen and nitrogen (up to 25%).
The general contractor scope of delivery by ETW also included raw gas conditioning, lean gas post-treatment with regenerative thermal oxidation (RTO), the gas flare, and the biomethane injection system (Gate Keeper) with re-compression to 25 bar.
