Challenge
During biogas processing, the CO₂ must be separated from the methane and the gas brought up to the required pressure. Stable process conditions and reliable compression are crucial for further processing.

Solution
Reciprocating compressors handle the compression of the biogas and allow for precise adaptation to the specific process requirements.

The systems used ensure safe pressure increase and facilitate efficient integration into the processing plant.

Implementation in Italy
In a plant with pressure water scrubbing, biogas is first pre-compressed and then brought to the required final pressure using a TRE 700 series piston compressor.

The plant is designed so that the treated methane can be reliably reused or fed into the natural gas grid. Operation is stable and continuous in daily use.

Results

• Reliable compression of treated biogas
• Stable process conditions in the plant
• Efficient integration into the pressurised water scrubbing system
• Safe further processing of biomethane