The Mixed Refrigerant technology can be used with a variety of small gas sources:
- Coal bed methane – CBM
- Pipeline gas
- Flare gas recovery
- Landfill gas
Each type of gas needs to be cleaned to achieve low water content (1 ppm), and low amounts of CO2 (<50 ppm) and H2S (< 4ppm). Gas cleaning systems can also be delivered by Wärtsilä upon request.
The biogas liquefaction plant pictured beside was delivered to the municipality of Oslo. For this plant, Wärtsilä also delivered a mole sieve adsorption system for CO2 (2-subscript not superscript) cleaning stage.