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