biogas upgrading

Biogas Upgrading
Using PRISM® Membrane Separators

Air Products Prism Membranes does not construct complete biogas systems but markets PB separators through a global network of experienced biogas system builders. Using this network of expert value-added-resellers ensures that each system has a local business supporting operations and service. If your company has experience in design, fabricating, and selling biogas upgrading equipment, we invite you to incorporate the PRISM PB membrane separators into your engineered systems. For more information, please contact us here.

Biogas is a green energy source that is produced by anaerobic digestion of organic wastes. This breakdown of organic material produces biogas, which is composed of methane, carbon dioxide, and a few other elements.

Prism PB Membrane separators upgrade biogas by separating the methane from the carbon dioxide into two purified streams. Air Products manufactures six different PB Membrane separators, which are the key components in biogas upgrading systems.

PED certification for Category III Pressure Equipment means that Prism PB Membrane separators are easily integrated into upgrading systems without requiring expensive pressure vessel containment. In facilities with varying production loads, the PB separators offer scalability with the benefit of production turn up or turn down. Other biogas upgrading technologies lack this flexibility. Compared to membrane upgrading, wash water scrubbing, PSAs, and other biogas purification solutions require considerable volumes of power, space, and water to upgrade bio-methane.

Common bio-methane applications include CNG vehicle refueling, natural gas grid injection, or power generation.

  • Compact design ensures easy installation and service.
  • Rated for flammable gas processing - eliminates expensive pressure vessels.
  • Easy turndown for varying production loads.
  • Passive technology is effective and reliable.
  • Available in six configurations to optimize system design.


Biogas to Hydrogen Case Study
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PRISM® Membrane Separators for biogas upgrading
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PB6050 Biogas membrane separator
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PRISM® PB4030 Membrane Separator for biogas upgrading
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PRISM® PB4050 Membrane Separator for biogas upgrading
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biogas upgrading collage

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