MIXED REFRIGERANT (MR) PROCESS - THE PERFECT SOLUTION FOR BIOGAS LIQUEFACTION
Wärtsilä offers the energy efficient Mixed Refrigerant (MR) liquefaction technology for low liquefaction capacities. Together with our fast track engineering model, this technology results in low investment costs and short manufacturing time.
The liquefier system uses mixed refrigerant technology, where one single MR compressor and one aluminum plate-fin heat exchanger (PFX) are the main components in the system. A standard chiller (pre-cooling unit) is incorporated to improve energy efficiency and to ensure stable operation of the MR process.
Wärtsilä provides the basic complete process package, to which can be added civil engineering and construction services. The complete plant can also be supplied as an EPC delivery. Once installed, Wärtsilä further offers Operation & Maintenance agreements that are tailored to the customer's specific needs.
Main Technical data:
The Mixed Refrigerant technology can be used with a variety of small gas sources:
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.
Key advantages of the Mixed Refrigerant technology include:
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Wärtsilä is a global leader in advanced technologies and complete lifecycle solutions for the marine and energy markets. By emphasising sustainable innovation and total efficiency, Wärtsilä maximises the environmental and economic performance of the vessels and power plants of its customers.