Membranes for Biogas Upgrading

The principle of membrane separation of a gas mixture is based on the different penetration rates of its components through a polymeric membrane due to the differential partial pressures of the gas on either side of the membrane.

Membrane gas separation technology is widely used throughout the world to extract nitrogen from air, extract hydrogen from hydrogen-bearing gas mixtures, and extract carbon dioxide and water from natural gas.

Grasys Membrane Cartridges

• High selectivity
• High specific membrane surface area
• Wide pressure range (up to 13 MPa)
• Low pressure loss during separation
• Excellent chemical stability

Grasys Cartridge-Based Membrane Units

• Low capital and operating costs
• Easy to install and maintain
• Compact unit dimensions
• Removal of several impurities in a single process cycle
• Environmentally friendly technology (no chemicals used)

Applications

Can be used as part of small and large biogas plants (with biogas flow rate of 50 to 5,000 m₃/h).