With our biogas upgrading in biomethane and its liquefaction system we are committed every day to minimizing the environmental impacts of production and the management of resources and mobility, making it more sustainable. Our systems are among the solutions that favor the circular economy and fight against climate change.


The biogas purification and upgrading systems ECO-SORB ™ VPSA are based on an optimized solution of the PSA process but operating at ambient pressure, allowing to avoid the design and operating burdens associated with pressurized tanks and systems. Starting from the purification of biogas from OFMSW, agricultural plants, FORSU and sewage sludge, it is possible to inject into the natural gas grid biomethane respecting the SNAM Network Code parameters or for direct use as high quality fuel, in the form of compressed gas or BIO-LNG.
The ECO-SORB™ VPSA systems are characterized[...]


Polishing systems are an essential section before liquefaction and consist of a simple technology that use molecular sieves. Applicable upstream of the liquefier, the polishing systems allow a further purification of biogas for the dehydration and for a deeper CO2 removal.

The off-gas is eventually recirculated to the upgrading stage.

Do you need further information?

Discover all the solutions that Ecospray can offer you. Download the brochure to learn more about technologies and application fields!


  • Marine DeSOx
  • Marine DeNOx
  • Marine Filtration


  • Industry DeNOx
  • Industry DeSOx
  • Industry Filtration
  • Fogging
  • Gas Cooling
  • Industry Liquefation


  • BIOGAS Upgrading
  • Liquefaction

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