Tailored Biogas Upgrading Solutions 

With 75 years of experience in CO2 equipment and recovery systems, Pentair helps waste processors, water treatment plants, landfills, food processing companies and farmers to lower their carbon footprint and re-use natural resources while building sound and sustainable practices. 

We are there for you for the complete life cycle of your system, from design to commissioning to operation and maintenance, with global service hubs and dedicated technical support. Pentair Biogas Upgrading Solutions comprises of a two-stage membrane and cryogenic system, providing down to 0% methane slip. 

Pentair Biogas Upgrading Solutions

  • Pentair BioCompact: the biogas upgrading system for smaller capacities. (75/125/250/350/500/750 m3/h).
  • Pentair BioBasic: The straightforward biogas upgrading system with a capacity of > 1000 m3/h helps unlock one additional revenue stream: biomethane for gas grid injection. 
  • Pentair BioPlus: The advanced biogas upgrading system with a capacity of > 1000 m3/h helps unlock two additional revenue streams: biomethane for gas grid injection or as transport fuel bio-CNG and bio-LNG.
  • Pentair BioComplete: The comprehensive biogas upgrading system with down to 0% methane slip and capacity for > 1000 m3/h helps unlock two additional revenue streams: biomethane for gas grid injection and by-product bio-CO2.
  •  BioAmine - Surplus heat in your production location available? Then our amine-based upgrading technology is the most cost-efficient solution for capacities from 3000 - 6000 m3/h and even beyond. 

OPTIONAL BOLT-ON: 
  • Pentair CO2 bolt-on: bio-CO2 from your upgrading biogas with the option to increase the biomethane yield to 100%.

QUALITY CONTROL
  • Pentair BioSENSE: Cut costs by determining and managing the VOC contamination levels of your biogas.

Down to 0% methane slip

A two-stage membrane and cryogenic system combination will provide down to 0% methane slip for a truly sustainable, circular solution.

Additional revenue streams

Biomethane can be sold to the national grid, used as a transport fuel (bio-CNG or bio-LNG) or the bio-CO2 can be purposed for beverage carbonation, fresh product packaging or dry ice production.

Decarbonize Operations

Upgrade biogas to biomethane to help eliminate fossil-based carbon emissions across industrial & domestic environments, transportation, electricity and heat production.

How does it work?

The heart of the system is the membrane separation unit. The membrane separates the two major gas components: CH4 and CO2. The separation is accomplished through the pressure difference over the membrane surface.

The high-pressure biogas is fed into the membrane, and the CO2 passes through the membrane surface to the permeate, the low-pressure side, much faster than CH4.


The membranes are pressure-driven, so the higher the pressure, the more CO2 will pass through the membrane surface. The discharge from the membrane (the retentate) contains mainly CH4, as the CO2 has been pushed through the membrane surface. The CO2 rich gas will leave the membrane on the low-pressure side of the membrane (permeate).


Our technology partners

We proudly collaborate with partners to help us achieve end-to-end solutions for our customers. Through this collaboration, we can convert our sustainable renewable energy source, biomethane, into useful applications: gas to grid, bio-LNG, bio-CNG, and bio-CO2.